Gamma Radiation Meter Survey Design Based on Geiger Tube and Arduino UNO Microcontroller For Environmental Radiation Monitoring Deni Karsa Sondana, Sidik Permana
Institut Teknologi Bandung
Abstract
Radioactivity that occurs in the environment produces ionizing radiation in the form of alfa, beta and gamma - radiation. Every time humans on earth are unnoticed by this radiation which, in a certain amount, will cause damage to human body tissues. The purpose of this study is to design a survey meter for gamma radiation in the environment using a Geiger J305 tube filled with argon gas. The detector module is integrated with the Arduino UNO Microcontroller whose role is to convert the resulting electrical signal into count data with units of CPM (Counters per minutes). To ensure that the measurement values of the survey meter have stability, a statistical stability test is carried out using the chi squere test. The results of the trial measurement of gamma radiation by the indoor survey meter design obtained data with a chi squared value of 14.00, while for the outdoor trial obtained data with a chi squared value of 15.03 and finally the results of the trial measurement of gamma radiation from radiation sources fixed, namely radionuclide Cessium-137, obtained data with a chi squared value of 12.84. From the results of the three test measurements carried out, all values of the chi square test are in the gaussian distribution range
Keywords: chi squere test, arduino microcontroller, gamma radiation, survey meter
