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91	Nuclear Science and Engineering	ABS-64
Analysis of Radionuclides and Rare Earth Elements Content in Soil Samples Using X-Ray Fluorescence (XRF) Spectroscopy Method Ismail Humolungo (a), Sidik permana (a,b,c*), Adi R.A Abdullah (b), Zulfahmi (a), Haryo Seno (d) a) Master Program in Nuclear Science and Engineering Department, Bandung Institue of Technology, Jl. Ganesha No. 10, Bandung, Indonesia b) Doctoral Program in Nuclear Engineering Department, Bandung Institue of Technology, Jl. Ganesha No. 10, Bandung, Indonesia. c) Physics Department, Bandung Institue of Technology, Jl. Ganesha No. 10, Bandung, Indonesia *psidik[at]itb.ac.id d) Indonesia^s National Research and Inovation Agency. Jl. Tamansari No. 71, Bandung, Indonesia. Abstract The high average natural gamma radiation dose rate in Mamuju Regency and Bangka-Belitung Island shows the uniqueness associated with high concentrations of the radioactive elements uranium, thorium and potassium precipitated in rocks and soil. Geological activity in the past is the main cause in the two areas to form radioactive mineral deposits. In this study, an XRF test was carried out with the ED-XRF tool on soil samples taken from the two locations with the aim of identifying radioactive compounds and elements. 18 soil samples from Mamuju Regency and 4 samples from Bangka Island were tested at the Physics Laboratory, State University of Gorontalo. Tests were carried out on 2 forms of samples in the form of powder and pellets. The results show that the measurement of all samples in powder form can detect the chemical compounds contained therein, among those detected are rare earth elements such as Y2O3, ZrO2, La2O3, CeO2, Pr6O11, Nd2O3, and BaO. While the measurement of samples in the form of pellets aimed at detecting radioactive elements, only 5 samples from Mamuju Regency showed Uranium (U), Thorium (Th), Potassium (K) elements. The five samples showed concentrations of uranium (U) varying from 566.90 ppm to 1428.27 ppm and thorium (Th) from 1714.39 ppm to 5695.48 ppm, and potassium (K) from 1600.83 ppm to 31371.76 ppm. The high concentration of radioactive elements is in line with previous measurements of the radiation dose rate. Keywords: XRF, Uranium, Thorium, REEs, Mamuju, Bangka Island. Share Link | Plain Format | Corresponding Author (Ismail Humolungo)

92	Nuclear Science and Engineering	ABS-65
Analysis on Reactor Performances of PWR type SMR for Different Fuel Amila Amatullah (a*), Sidik Permana (b,c), Syeilendra Pramuditya (b,c) a) Master Program in Nuclear Science and Engineering, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology Ganesha No. 10 Bandung, Indonesia *24921004[at]mahasiswa.itb.ac.id b) Graduate Program in Nuclear Science and Engineering, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology Ganesha No. 10 Bandung, Indonesia c) Graduate Program in Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology Ganesha No. 10 Bandung, Indonesia Abstract Following Sustainable Development Goal point 13 and the Paris Agreement, countries are committing to reducing greenhouse gas emissions by registering their Nationally Determined Contributions (NDCs). Indonesia NDC targets a 29% emissions reduction through its efforts and 41% with international support. In 2021, these goals were adjusted to 31.89% and 43.20%. This positions Indonesia for Net Zero Emission by 2060. One strategy for emission reduction is the dedieselization program, replacing diesel power plants with renewables. Pressurized Water Reactor (PWR) type Small Modular Reactor (SMR) is also a consideration. This study aims to compare fuel performance in SMRs. Four fuel types with varying fissile and fertile nuclides but equal fissile mass percentages were assessed: U-235 + U-238, U-235 + Th-232, U-233 + U-238, and U-233 + Th-232, using PIJ SRAC 2006 and JENDL 4.0. Parameters include criticality, conversion ratio, and burnup. Results indicated U-233 significantly higher fissile capacity than U-235, with about 15% criticality difference. Th-232 also exhibits better neutron capture than U-238. This research aids fuel selection for Indonesia SMR dedieselization program. Keywords: Small Modular Reactor- K-eff- Burnup- Conversion Ratio Share Link | Plain Format | Corresponding Author (Amila Amatullah)

93	Nuclear Science and Engineering	ABS-66
Parametric Study and Determination of Optimal Power Level in Small Long-Life PWR using (Th-233U)C Fuel and 231Pa as Burnable Poison Boni Pahlanop Lapanporo(a),(c), Zaki Suud(a),(b) (a)Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia *boni8poro[at]physics.untan.ac.id (b)Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung 40132, INDONESIA (c)Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, Jl. Prof. Dr. H. Hadari Nawawi Pontianak 78124, Indonesia Abstract This study aims to determine the optimal performance of (Th-233U)C fuel in the Small Long-Life Pressurized Water Reactor (PWR) core. The analysis is carried out by designing the reactor core into three fuel regions with 233U enrichment levels ranging from 3% to 9%, with a 1% difference for each fuel region. 231Pa is a burnable poison (BP) added to the fuel. The analyzed fuel volume fraction ranges from 30% to 65% with a 5% incremental variation. Power level variations are also conducted within the 300-500 MWth with increments of 50 MWth. Calculations are performed using the Standard Reactor Analysis Code (SRAC) program with the PIJ and CITATION modules for cell and core calculations, utilizing JENDL-4.0 nuclide data. The calculation results analyzed include reactor criticality, excess reactivity, and power density profile. The targeted optimum results in this research involve a specific fuel configuration and power level where the reactor can achieve critical conditions for up to 20 years with excess reactivity below 1%. Keywords: Thorium, Long-Life PWR, Core design, SMR, SRAC Share Link | Plain Format | Corresponding Author (Boni Lapanporo)

94	Nuclear Science and Engineering	ABS-67
Predicting Melting Temperatures of Freeze Valve in Molten Salt Reactors using LSTM-Based Deep Learning Models Robi Dany Riupassa (a), Khairul Basar (b), Novitrian (b), and Abdul Waris (b,*) (a) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesha 10, Bandung 40132, Indonesia (b) Nuclear Physics and Biophysics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesha 10, Bandung 40132, Indonesia *awaris[at]itb.ac.id Abstract The realm of molten salt reactors (MSRs) presents unique challenges and opportunities in the pursuit of advancing nuclear energy technology. One pivotal aspect is the development of safety mechanisms, including freeze valves, aimed at enhancing the security and operational integrity of these reactors. Freeze valves, designed to halt the flow of molten salt in emergency scenarios, play a critical role in averting potential hazardous situations. This research paper investigates the application of deep learning models for predicting melting temperatures, leveraging time-series temperature data, specifically targeting the freeze valve technology within the context of molten salt reactors. The research methodology encompasses the creation of a synthetic dataset representative of freeze valve conditions in MSRs. Each dataset entry comprises a time-series temperature profile associated with the freeze valve and its corresponding melting temperature. To capture the intricate temporal relationships inherent in these profiles, a specialized Recurrent Neural Network (RNN) architecture, incorporating Long Short-Term Memory (LSTM) cells, is developed and trained. The model^s training is augmented by preprocessing techniques, including the normalization of time-series temperature data. Evaluation of the model^s predictive capabilities focuses on its performance in forecasting the melting temperatures of the freeze valve. Metrics such as mean squared error (MSE) and mean absolute error (MAE) are utilized to quantify the model^s accuracy and robustness. The study delves into the influence of architectural configurations, hyperparameter tuning, and dataset characteristics on the model^s predictions, shedding light on the factors that contribute to optimal predictive performance. The outcomes of this research highlight the potential of deep learning models in predicting the melting temperatures of freeze valves in the context of MSRs. The developed model not only showcases an ability to anticipate impending safety-critical events but also underscores the significance of leveraging time-series temperature data to enhance the integrity of safety mechanisms in nuclear reactor systems. Ultimately, this research contributes to the pursuit of safer and more efficient nuclear energy solutions, offering valuable insights into predictive modeling techniques within the complex landscape of molten salt reactor technologies. Keywords: deep learning- MSR- RNN- LSTM- MAE Share Link | Plain Format | Corresponding Author (Robi Dany Riupassa)

95	Nuclear Science and Engineering	ABS-69
Evaluated Material Attractiveness of Plutonium Composition from ESBWR Fungky Iqlima Nasyidiah (a*), Sidik Permana (b,c), Syeilendra Pramuditya (b,c) Institute of Technology Bandung Abstract Nuclear fuel with the involvement of the nuclear material cycle capable of abuse, the assessment of non-proliferative aspects generally measures the level of proliferation resistance, and material attractiveness one that can be used in the measurement. This concept is based on the plutonium barrier by adopting the ATTR, DH, and SFN formulas, also utilizing BCM, Rossi-alpha, and neutron prompt life values as additional analysis materials. This study aims to evaluate material attractiveness on one fuel pin in the core of the ESBWR reactor, calculations were carried out using ORIGEN2.2 for the distribution of nuclide decay along with fission products and MCNP4.4 JENDL 3.3 library to calculate the value of bare critical mass, neutron prompt life. The burnup value used is 33 GWD/t reviewed during the irradiation process, it was seen that the ATTR value was different at some time the burnup achievement when the reactor had just reached a burnup value of 1 GWd/t ATTR value showed >0.1 the fuel was categorized as weapon-grade technology level, when the reactor had reached a burnup value of 2.5 GWd/t (0.076) that it was categorized as Usable-Grade technology level. This condition occurs until the reactor reaches a burnup of 10 GWd/t, the last fuel is categorized as un-usable grade technology level when the reactor reaches a burnup of 15 GWd/t to 33 GWd/t. This is influenced by the Pu-240 value categorized weapon grade when burnup 2.5 GWd/t, when burnup 10 GWd/t categorized as fuel-grade and categorized reactor-grade when burnup 15-30 GWd/t. From these results we can know that the behavior of fuel that becomes proliferation can be controlled by increasing burnup, then the plutonium barrier will act as a barrier to the occurrence of proliferative conditions as well as the influence of DH, SFN and BCM. Keywords: Resistance Proliferation- Material Attractiveness- Plutonium Barrier- Decay Heat- Spontaneous Fission Neutrin- Bare Critical Mass Share Link | Plain Format | Corresponding Author (Fungky Iqlima Nasyidiah)

96	Nuclear Science and Engineering	ABS-74
Neutronic performance of 208Pb-Bi eutectic-cooled fast reactor with uranium nitride fuel (enriched 15N) Nina Widiawati1, Zaki Suud2,3, Dwi Irwanto2,3, Sidik Permana2,3 1 Research Center for Nuclear Reactor Technology, BRIN, Indonesia 2Department of Physics, Institut Teknologi Bandung, Indonesia 3Department of nuclear science and engineering, Institut Teknologi Bandung, Indonesia Abstract Fast reactors (FRs) require more uranium enrichment than LWRs and fuel reprocessing. The solution proposed to address these issues is to use the modified CANDLE burnup scheme on the reactor core. The use of uranium nitride (UN) as fuel was proposed because the UN fuel has several advantages, such as high melting point, high heavy metal density, and large thermal conductivity. However, using UN as a fuel can produce the radioactive isotope 14C via the reaction 14N(n,p)14C. Therefore in this study, a neutronic analysis was performed in a modified CANDLE fast reactor employing UN and UN (enriched 15N) as fuel using SRAC. The modified CANDLE fast reactor fueled with UN (99% 15N) has a higher keff than the UN-fueled reactor with similar parameters. Similarly, the atomic density of fissile nuclides and power density are higher because the 15N isotope has a smaller neutron capture cross-section than the 14N isotope. Keywords: Fast reactor- Modified CANDLE- keff- UN(enriched 15N) Share Link | Plain Format | Corresponding Author (Nina Widiawati)

97	Nuclear Science and Engineering	ABS-78
Effect of Different Temperature and Nuclear Data Libraries in Criticality Calculations of 300 MWt Molten Salt Reactor Marisa Variastuti(a), Dwi Irwanto(a,b*) (a) Department of Nuclear Science and Engineering, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia (b) Nuclear Physics and Biophysics Research Group, Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia *Email: dirwanto[at]itb.ac.id Abstract The Molten Salt Reactor (MSR) is a reactor that employs a mixture of liquid salts as fuel and coolant. This liquid fuel enables better heat transfer and temperature control, positioning the MSR as one of the Generation IV reactor types. This study aims to analyze the influence of temperature variations on MSR reactor criticality and evaluate the effect of different nuclear data libraries, namely JENDL 3.2, JENDL 3.3, and JENDL 4.0, in neutron analysis. The observed temperature variations are 600 K, 700 K, 833 K, 903 K, and 1000 K. The analysis spans low to operational temperatures to comprehend reactor performance under differing thermal conditions. The study is conducted on a 300 MWTh MSR design, utilizing SRAC2006 with PIJ and CITATION modules for calculations. The results reveal the impact of temperature variations and nuclear data library disparities on reactor criticality. The outcomes demonstrate that higher temperatures correspond to lower values of the effective multiplication factor. At lower temperatures, neutrons experience greater moderation compared to higher temperatures. As a result, a higher number of thermal neutrons influences an increased probability of fission reactions within the reactor. Different nuclear data libraries also yield varied criticality values due to differing cross-sectional areas and quantities of data within each JENDL library. JENDL 4.0 generates the highest criticality value, attributed to elevated cross-sectional regions of each respective nuclear data entry and a greater quantity of nuclear data entries compared to JENDL 3.2 and JENDL 3.3. Keywords: Criticality, Molten Salt Reactor, Neutron Analysis, Nuclear Data Library, Temperature. Share Link | Plain Format | Corresponding Author (Marisa Variastuti)

98	Nuclear Science and Engineering	ABS-79
Validation of OpenMC Code Criticality Value Calculation for GFR Reactor with UN-PuN Fuel Fajri Prasetya(a), Ahmad Muzaki Mabruri(a), Iklimatul Karomah(a), Ratna Dewi Syarifah(a*), Indarta Kuncoro Aji(b), Nuri Trianti(c) Faculty of MIPA, University of Jember Abstract OpenMC code is a monte carlo-based neutron transport simulation code developed by the community at the MIT since 2011. The use of OpenMC code needs to be validated with other code, so that an accurate and valid criticality value is generated. The validation value is affected by the minimum number of particles used. Determination of the minimum number of particles is carried out by varying the number of particles so that they have a convergent value, which is in the range of 100-50000 particles. The results of determining the minimum number of particles are then used to find the minimum number of cycles consisting of active and inactive batches. This study uses the criticality value parameter in the form of an effective multiplication factor (k-eff) as a benchmark for code accuracy. The k-eff values generated by OpenMC and SRAC are then compared and the validation error value is searched. The error value is found by calculating the k-eff (&#8710-k-eff) difference between the two codes. OpenMC code can be said to be validated if it has an error value of less than 1% against the calculation results of the SRAC code. The calculation results of determining the minimum number of particles show k-eff values in the range of 35000 - 50000 minimal changes significantly or not fluctuating. The calculation of k-eff and entropy in cycle 500 shows a convergent value at the active batch value of >30. Based on the data cycle, researchers used 100 active batches and 30 inactive batches to perform validation calculations. The results of the validation calculation using UN-PuN fuel with a plutonium material composition of 10% showed a maximum k-eff error value of 0.819%. The &#916-k-eff obtained is 0.008. Keywords: K-eff- OpenMC- SRAC- Validation Share Link | Plain Format | Corresponding Author (Fajri Prasetya)

99	Nuclear Science and Engineering	ABS-83
Effective Multiplication Factor Analysis of Gas-cooled Reactor using OpenMC code with ENDF/B-VII.1, ENDF/B-VIII.0 and JENDL-5.0 Nuclear Data Libraries Mochamad Aria Ibnu Rachmat and Dwi Irwanto 1 Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia 2 Department of Nuclear Science and Engineering, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia 3 Nuclear Physics and Biophysics Research Group, Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia Abstract As the demand for nuclear energy keeps rising, Generation IV reactor designs continuously improve. One such potential reactor design is the Gas-cooled Reactor. Neutronic analysis is the foundation for ongoing design modifications and alternatives for the Helium Gas-cooled Reactor. An important aspect of neutronic analysis is the nuclear data library. This research compares how different nuclear data libraries impact a Helium Gas-cooled Reactor design by comparing the neutron effective multiplication factor (k-eff) value. This research was conducted by the Monte Carlo method using OpenMC code. ENDF/B-VII.1, ENDF/B-VIII.0 and JENDL-5.0 were used as nuclear data libraries to simulate the reactor design for ten years of depletion time with 1-year timesteps. The results show that while each nuclear data library^s average k-eff values vary, they all produce the same results at timestep zero, with k-eff values around 1.02500. The average k-eff value from simulation using the ENDF/B-VII.1 library is 1.01477, the average k-eff value from simulation using the ENDF/B-VIII.0 library is 1.01122, and the average k-eff value from simulation using the JENDL-5.0 library is 1.01047. Each simulation result has an average uncertainty of 0.00040. The difference is due to the different amounts of data in each library. JENDL-5.0 has the highest number of data inside its nuclear libraries, followed by ENDF/B-VIII.0 and ENDF/B-VII.1. Keywords: Gas-cooled Reactor, Nuclear data library, Neutronic, Effective multiplication factor Share Link | Plain Format | Corresponding Author (Dwi Irwanto)

100	Nuclear Science and Engineering	ABS-84
Lawson Criterion Analysis of D-3He Fussion Reaction Jasmine Chaerani(a), Abd. Djamil Husin(a), Sitti Yani(a*) (a) Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University *sittiyani[at]apps.ipb.ac.id Abstract The Lawson criterion constitutes a pivotal condition for the viability of sustained fusion reactions. This study employs numerical methods and data analysis in Microsoft Excel to ascertain the Lawson criterion for D-3He fusion at temperatures ranging from 75 to 150 keV. Furthermore, the investigation examines the influence of bremsstrahlung radiation and evaluates fusion reactivity based on Hively and Bosch-Hale parameters. Hively reactivity value falls within the range of 1,121x10E-22 - 3,607x10E-22 m-3/s , The instability occurs at temperatures < 100 keV. The Bosch-Hale value differs significantly from the Hively reactivity, which is 1,208x10E-22 - 2,340x10E-22 m-3/s. The bremsstrahlung radiation within the range of 4,819x10E-20 - 6,802x10E-20 keV exhibits minimal impact on the reaction. The Lawson criterion value within the scope of this study typically falls within the range of 0,818x10E21 - 1,452x10E21 s/m-3. This range signifies the necessary combination of confinement time and plasma density to facilitate the generation of clean energy within a temperature range of 75 to 150 keV, thus propelling the fusion process toward the ignition phase. Keywords: Lawson criterion, Bremsstrahlung radiation, Fusion reaction, Fusion reactivity Share Link | Plain Format | Corresponding Author (Sitti Yani)

101	Nuclear Science and Engineering	ABS-86
Numerical Simulation of the Effect of Molten Salt Channel Number on Temperature Distribution in Molten Salt Core Reactor Amelya Dwiyulianti (a), Ahmad Yonanda (b), Zulfalina (c), Rini Safitri (c), Elin Yusibani (c*) (a) Graduate Programs in Physics, Physics Department, FMIPA Universitas Syiah Kuala, Jl Teuku Nyak Arief Darussalam, Indonesia 23111 (b) Mechanical Engineering, Faculty of Engineering, Universitas Lampung. Jl. Prof. Dr. Ir. Sumantri Brojonegoro, Gedong Meneng, Kec. Rajabasa, Bandar Lampung, Indonesia 35141 (c) Physics Department, FMIPA Universitas Syiah Kuala, Jl Teuku Nyak Arief Darussalam, Indonesia 23111 *e_yusibani[at]usk.ac.id Abstract One important aspect in the design of a nuclear reactor that needs to be considered is thermal analysis. This parameter is closely related to the circulation of molten salt, which serves as a fuel and coolant in MSR reactors. This study simulates the temperature distribution performance of the MSR by considering the effect of the number of molten salt channels with inlet temperature variations. Knowing the temperature distribution will predict the characteristics of heat transfer in the form of natural convection for the survival of the reactor. The reactor design used in this study was MSBR developed by ORLN. ANSYS Fluent with 3D model was employed to investigate the system behavior under steady-state conditions. The geometry is divided into two regions, solid (graphite material) and fluid (molten salt). The thickness of the moderator and radius of the molten salt channel were 0.0508 and 0.0208 m, respectively. The moderator height was 1.98 m. The number of salt channels varied up to three. The results showed that there was a temperature difference of 11 to 14 K when the channel was increased from one to three channels. Keywords: MSR, Fluent, temperature distribution, molten salt, graphite Share Link | Plain Format | Corresponding Author (ELin Yusibani)

102	Other Related Topics	ABS-18
Experimental study on dynamic angle of repose formation : Effect of granular type and water content Jonathan Adriel , M Rizqie Arbie, Sparisoma Viridi Department of Physics, Institut Teknologi Bandung Abstract The experiment of granular in rotating cylinder is a common experiment to study granular material behavior. In this study, we investigate the effect of granular type and water content on the dynamic angle of repose in a rotating cylinder. Rice seeds, mung beans, and sand are used as samples. Experimental results show each sample has a different dynamic angle of repose that is related to the shape of the sample. We also study the effect of the water content on the sand sample. The addition of water content has no significant effect on the dynamic angle of repose. This occurs because the water content used has passed the critical point. Keywords: Dynamic angle of repose, granular type, water content, rotating cylinder Share Link | Plain Format | Corresponding Author (Jonathan Adriel)

103	Other Related Topics	ABS-23
PREDIKSI INDEKS SAHAM LQ45 MENGGUNAKAN METODE MACHINE LEARNING (BIDIRECTIONAL LONG-SHORT TERM MEMORY) DENGAN HYPERPARAMETER TUNNING Michael Timotius Oei a) Department of Physics, Bandung Institute of Technology Jalan Ganesha 10, Bandung 40132, Indonesia *sampurno[at]energy.itb.ac.id b) Faculty of Faculty of Mathematics and Natural Sciences Abstract One of the methods that can be applied to predict stock index values is Bidirectional Long-Short Term Memory (BLSTM). In the BLSTM method, information flows forward and backward through the network, allowing for better modeling to anticipate trend patterns and recognize complex patterns based on historical stock data. Furthermore, hyperparameter tuning is applied to find the best combination of BLSTM hyperparameters (epochs, batch size, learning rate, and the number of neurons) to obtain optimal output. As a comparative method, Long-Short Term Memory (LSTM) and Gaussian Process Regression (GPR) are also used. This study aims to analyze the performance of BLSTM and the influence of hyperparameter tuning on stock index prediction results, which tend to experience significant index changes due to the pandemic. The data used consists of LQ45 stock data from March 2017 to July 2023. The data is divided into training data, testing data, and prediction data. The training data covers the period from March 2017 to April 2022. Meanwhile, the testing and prediction data respectively cover time ranges from April 2021 to July 2023 and August 2023 to October 2023. Based on the analysis and processing of LQ45 data, the prediction accuracy is obtained as 93.222% for the BLSTM method with hyperparameter tuning, 93.086% for the LSTM method with hyperparameter tuning, and 93.212% for the GPR method. Additionally, future stock index graphs and buy & sell graphs based on the application of Moving Average (MA) are also obtained, which are expected to be considered in investment decisions. Keywords: BLSTM, LSTM, GPR, Hyperparamter Tunning, Prediction, Buy & Sell Share Link | Plain Format | Corresponding Author (Michael Timotius Oei)

104	Other Related Topics	ABS-38
Population Evacuation Modeling using Agent-Based Model and Social-Force Model Alya Mutiara Firdausyi, Septian Ulan Dini, Sevi Nurafni, Sparisoma Viridi Institut Teknologi Bandung Abstract Good emergency management is essential in planning events that have the potential to endanger lives, one of which is preparing for an effective and efficient evacuation. Evacuation evaluation using a fire drill is not optimal because it does not describe the actual emergency, therefore agent-based modeling is carried out to see interactions between individuals and their environment during the evacuation process. ABM is combined with a social-force model which is the source of the agent^s movement style toward goals and avoiding obstacles. The simulation is carried out using NetLogo 6.3.0 software which can represent agents spread across a 2-dimensional room with variations in room size, exits, and the number of agents involved. Several characteristics are given to agents to cause heterogeneity, including age categories in the form of children, adults, elderly, and disabilities which will determine the agent^s walking speed. The measurements observed were the average duration of evacuation and the average speed of agents. From the simulation results, it can be concluded that the use of the social style model will lead to the emergence of collective behavior such as clogging and arching in agents. The same population density in different room areas will affect the duration of evacuation, whereas a larger room area will cause the agent to travel a greater distance to the exit. An increase in evacuation duration will accelerate rapidly at low densities and slow down as density increases. Keywords: agent-based modeling- evacuation- NetLogo- population density- social-force model Share Link | Plain Format | Corresponding Author (Alya Mutiara Firdausyi)

105	Other Related Topics	ABS-52
Fidelity Comparation of Two Qubit Quantum Teleportation with Bit-Flip and Phase-Flip Channel Ananto A Prabowo (a*) , M Taufiqi (b), Bayu D Hatmoko (c) a*), b), c) Faculty of Science and Data Analytics, Sepuluh Nopember Institute of Technology Jl. Teknik Kimia, Keputih, Kec. Sukolilo, Surabaya, Jawa Timur *ananto4567[at]gmail.com Abstract This study investigates the effect of noise on two qubit quantum teleportation through a four qubit channel theoretically. Therefore, in this study a comparison of two states of teleportation through ideal and noisy channel was carried out. The noisy channel can have the effect of bit-flip channel and phase-flip channel. From these two effects, it is found that the fidelity depends on the noise factor (p) and the sent state constant. If the noise factor is neglected, then the fidelity value is 1. This indicates that the teleportation was successfully sent and at the same time confirms the teleportation behavior through ideal conditions. In this research, we varied three coefficient for the sent state, namely c00 = c01 = c10, with values of 0.250, 0.125, 0.0625. For the bit flip noise, we observed that as the values of the coefficient values of transmitted state increase, the fidelity value increases. Meanwhile, for the phase flip noise, we observed that as the values of the coefficient values of transmitted state increase, the fidelity value decreases. Keywords: Quantum Teleportation., Bit-Flip Channel., Phase Flip Channel., Fidelity Share Link | Plain Format | Corresponding Author (ANANTO ARI PRABOWO)

106	Other Related Topics	ABS-60
Fidelity in Quantum Teleportation of 2 Qubits with Decoherent Channel Yoga A. Darmawan (a*), Ananto A. Prabowo (b) (a*) Faculty of Science and Technology, Airlangga University Jl. Dr. Ir. H. Soekarno, Mulyorejo, Kec. Mulyorejo, Surabaya, Jawa Timur 60115, Indonesia *yogaagungdarmawan[at]gmail.com (b) Faculty of Science and Data Analytics, Sepuluh Nopember Institute of Technology Jl. Teknik Kimia, Keputih, Kec. Sukolilo, Surabaya, Jawa Timur 60117, Indonesia Abstract This study discusses the one-way quantum teleportation of 2 qubits through a 4-qubit Bell state channel that is subject to decoherence. Decoherence is one of the unavoidable effects of noise in the transmission process. In the case of quantum teleportation, noise has an impact on the channel, causing changes in its state due to noise. In the absence of noise, teleportation occurs in an ideal state, resulting in a fidelity value of 1, signifying successful information transfer in the ideal scenario. However, when examined in the presence of noise, fidelity is not equal to 1 due to the influence of noise factors and the coefficient of the transmitted state. These noise factors indicate the strength of the noise. The stronger the noise, the lower the fidelity becomes. Keywords: Quantum Teleportation- Decoherence Noise- Fidelity Share Link | Plain Format | Corresponding Author (Yoga Agung Darmawan)

107	Theoretical High Energy Physics	ABS-19
Massive-Charged Fermion Emissions from Kerr - Newman - Vaidya Black Holes Ahmad H. Salimi (1,3), Triyanta(1,2) (1) High Energy Theoretical Physics Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesha No.10, Bandung 40132 Indonesia (2) Indonesian Center for Theoretical and Mathematical Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesha No.10, Bandung 40132 Indonesia (3) Research Division, PT. Sharing Vision Indonesia Jalan Anggrek No.10, Bandung 40114 Indonesia Abstract In this article, we consider charged fermion particle radiation around Kerr - Newman - Vaidya black holes. Using the Hamilton - Jacobi method we derive the emission probability and the temperature of the Hawking radiations. We obtain that the temperature is equal to that due to scalar particles times a factor that contains some characteristic of fermions. Keywords: Black Holes, Hawking Radiations Share Link | Plain Format | Corresponding Author (Ahmad Hasbi Salimi)

108	Theoretical High Energy Physics	ABS-25
Qutrit Concurrence and Monogamy Edyharto Yanuwar, Jusak Sali Kosasih Theoretical Physics Laboratory, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia Abstract It is well known that entanglement is one of many distinctive aspects of the quantum world. The measurement and quantification of entanglement is one of the major problems in understanding and applying this resource. The purpose of this research is to investigate the entanglement measures and their properties in high-dimensional systems. One such property is entanglement monogamy, viz. quantum correlations are not shareable, different from the classical ones. On the other hand, the study of entanglement depends on the definitions of its measure. Here we examine the applicability of concurrence, an entanglement measure known for its effectiveness in the entanglement analysis of qubits. While the entanglement of two-level systems or qubits is widely understood, its extension to higher dimensions remains challenging. Our research establishes equivalence between different concurrence measures for bipartite qubit pure states, as well as extending them to qutrits and qudits. Next, we look into the monogamy relations of these measurements to explore their characteristics. Especially, we define the measures as functions of the superposition coefficients for specific states. This approach might enhance our comprehension of quantum traits in qutrit systems and advance our understanding of entanglement in broader quantum contexts. Keywords: concurrence, entanglement, monogamy, qudit, qutrit Share Link | Plain Format | Corresponding Author (Edyharto Yanuwar)

109	Theoretical High Energy Physics	ABS-39
Effects on Noise on Quantum System using non-Markovian QSD Alif KM Akbar Wibowo, Jusak Sali Kosasih Institut Teknologi Bandung Abstract In quantum information, quantum entanglement and quantum coherence holds an important role. In preserving the entanglement or the coherence, noise will be taken into account. It happens when a measurement is applied into a quantum system or simply due to the environment surrounding a quantum system. It is important to note that this note will affect the system, namely the entanglement or the coherence. As we know when the system is isolated, the entanglement or coherence would break. However, it is recently known that in a noisy environment, a measurement would instead protect the system. We consider two-level system coupled to an external environement. The Hamiltonian of the system is described by the Jaynes-Cummings model coupled to a bosonic bath. The noise affecting the system is described using stochastic method in the form of Non-Markovian Quantum State Diffusion. We conclude that the higher the H, the faster the state breaks. In contrast, the stronger the noise, the longer it takes for the system to break. This concludes that noise can preserve the system Keywords: Please Just Try to Submit This Sample Abstract Share Link | Plain Format | Corresponding Author (Alif Kembaraalam Muhammad Akbar Wibowo)

110	Theoretical High Energy Physics	ABS-43
Inflation Driven by Nonlinear Electrodynamics in Anisotropic Spacetime Ramy Fitrah Izzah (a), Chilwatun Nasiroh (a), Fiki Taufik Akbar (a*) (a) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 40132, Indonesia *ftakbar[at]itb.ac.id Abstract The well-known Big Bang theory has explained how the universe came into being. This extraordinary event caused the later universe to be accelerated by a scale factor \(a(t)\). However, standard Big Bang theory has had some problems that can not be explained, such as monopoles, horizons, and flatness. To solve this problem, a model of inflation in the early universe is needed. Recent studies show that nonlinear electrodynamics coupled with general relativity can describe the inflation of the universe. In this work, we consider a model of nonlinear electrodynamics in anisotropic spacetime. We derive the dynamical equation from the field equation of Einstein and the law of conservation of energy-momentum tensor. Then, we use the perturbation method to solve the dynamical equation of the universe and obtain the evolution of the non-singular scale factor with anisotropy parameter \(\epsilon\). Our result shows that in the model of nonlinear electrodynamics coupled to gravity in anisotropic spacetime, the universe can undergo an inflationary mechanism if \(\epsilon<1\). We perform a phase-space analysis of the inflationary model and a phase portrait is obtained in the presence of fixed points. We also show the absence of singularity in density and pressure using this model. Keywords: inflation of universe, anisotropic spacetime, nonlinear electrodynamics model Share Link | Plain Format | Corresponding Author (Ramy Fitrah Izzah)

111	Theoretical High Energy Physics	ABS-50
Explaining the Muon g-2 Discrepancy by Two-Higgs-Doublet Model Muhammad Farhan (a*), J. Julio (b), Jusak Sali Kosasih (a) a) Theoretical High Energy Physics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia *10219074[at]mahasiswa.itb.ac.id b) National Research and Innovation Agency, Kompleks Puspiptek Serpong, South Tangerang 15314, Indonesia Abstract The anomalous magnetic moment of muon (from now on called muon \(g-2\)) is one of the precision measurements sensitive to the new physics. Recent measurement, performed by the Muon \(g-2\) Collaboration of Fermilab, differs from the Standard Model (SM) value calculated by the Muon \(g-2\) Theory Initiative Group at the combined statistical signifcance of 5.1\(\sigma\). Taking at face value, such discrepancy is caused by the new physics. In this paper, we explain the discrepancy in the context of the two-Higgs-doublet model. We shall systematically classify every scenario that may induce muon \(g-2\). Their compatibility with relevant constraints, e.g., the oblique parameters and/or Michel parameters will also be discussed. Keywords: Beyond Standard Model- Muon g-2- Two-Higgs-Doublet Model Share Link | Plain Format | Corresponding Author (Muhammad Farhan)

112	Theoretical High Energy Physics	ABS-55
Localization of scalar matter with nonminimal derivative coupling on a braneworld Muhammad Taufiqur Rohman, Triyanta, Agus Suroso Theoretical High Energy Physics Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Abstract The localization of scalar matter with nonminimal derivative coupling in the braneworld model is studied. Two types of brane models are considered: a thin brane (the Modified Randall-Sundrum) and a thick brane model generated by the bulk scalar field. From the 5D action and 5D field equation, they can be reduced to the 4D case by imposing the fulfillment of localization conditions. In this article, the field localization properties with nonminimal derivative coupling is examined by showing the square integrability in the localization condition equations. Then, the results of both MRS and scalar thick branes are compared. Keywords: field localization, nonminimal derivative coupling, thick brane, Modified Randall-Sundrum Share Link | Plain Format | Corresponding Author (Muhammad Taufiqur Rohman)

113	Theoretical High Energy Physics	ABS-81
open quantum system approach for charger-mediated energy transfer in quantum batteries Putu Gede Agus Krisna Yogantara, Freddy Permana Zen Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jl. Ganesha 10, Bandung 40132, Indonesia Abstract The energy charging of a quantum battery is analyzed in an open quantum setting, where the interaction between the battery element and the external power source is mediated by an ancilla system (the quantum charger) that act as a controllable switch. The battery and the charger are described by resonant harmonic oscillator assuming the following of Hamiltonian distribution. The approximation of this energy is quantized by interaction picture and dephasing state is determined by Lindblad equation which is the coupling constant is a time dependent step function. Then, the energy is determined by the solution in equation of motion from the interaction picture of the battery and charger element. Different implementations are analyzed putting emphasis on the interplay between coherent energy pumping mechanism and thermalization. Keywords: Harmonic oscillator, Lindblad equation, open system, quantum battery Share Link | Plain Format | Corresponding Author (Putu Gede Agus Krisna Yogantara)

114	Theoretical High Energy Physics	ABS-87
Near-extremal Kerr-like ECO in the Kerr/CFT Correspondence M. Zhahir Djogama (a*), Muhammad F. A. R. Sakti (c), and Freddy P. Zen (a,b) a) Theoretical High Energy Physics Group, Department of Physics, Institut Teknologi Bandung, Bandung 40132, Indonesia *zhahirdjo[at]gmail.com b) Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Institut Teknologi Bandung, Bandung 40132, Indonesia c) High Energy Physics Theory Group, Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Abstract The Kerr/CFT correspondence initially introduced to study the quantum theory of gravity in the near-horizon geometry of an extreme Kerr black holes. The horizon can be replaced by a partially reflective membrane that comes from quantum gravitational corrections on the near-horizon region. In such modification, the black holes now can be seen as a horizonless exotic compact object (ECO). In this work, we consider the properties of Kerr-like ECOs in near-extremal condition using Kerr/CFT correspondence. We calculate the quasinormal modes and absorption cross-section in that background and compare the results with CFT dual computation. The corresponding dual CFT one needs to incorporate finite size/finite N effects in the dual CFT terminology to facilitate the reflective boundary condition. We find consistency between properties of the ECOs from gravity and CFT calculations. The QNMs is in line with non-extreme case, where the differences are in the length of the torus on which the dual CFT lives and phase shift of the perturbations. The absorption cross-section has oscillatory feature that start to disappear near extremal limit. We also obtain that the echo time-delay depends on the position of the membrane and extremality of the ECOs. Keywords: Black holes, Exotic compact object, Kerr/CFT correspondence Share Link | Plain Format | Corresponding Author (Muhammad Zhahir Djogama)

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