New features implemented in PHITS versions 3.34 and 3.35

Sato, Tatsuhiko

no journal, , 

A New gamma spectrometer and real-time data transmission based on websocket protocol

Morishita, Yuki; Ochi, Kotaro; Sanada, Yukihisa; Patryk, M.*; Anna, W.*; Lukasz, S.*

no journal, , 

Rapid detection of CBRN and nuclear accidents is necessary for the protection and evacuation of the population. For the purpose of rapid detection of CBRN and nuclear accidents, we have developed a new gamma spectrometer and real-time data transmission based on websocket protocol. The spectrometer consisted of a Ce-doped Gd2Si2O7 (GPS) scintillator and a photomultiplier tube (PMT). Signals from the photomultiplier tubes were collected and analyzed by an A-D converter and a field programmable gate array (FPGA). The histogram of peak voltages (energy spectrum) was transferred from the FPGA to the microcontroller board. The photopeak of Cs-137 was confirmed with the spectrometer and the spectrometer could be used for radionuclide identification (Fig.1). Once the energy spectrum data was received by the microcontroller, the energy spectrum data was transferred to a remote server using the websocket protocol. Figure 2 shows an example of energy spectrum data transmission. The energy spectrum data was successfully transmitted to a remote server. If communication is established between Japan and another country, the possibility of the incident would be detected in real time.