5:15 PM - 6:45 PM
[PCG20-P12] Reconstruction of high-energy proton beam experiments (HIMAC, J-PARC) using Geant4 and development of proton sensors(RMS-p) Onboard the Himawari-10
Keywords:Space Weather, High-Energy Proton detector, Geant4
The upcoming Japanese meteorological satellite, Himawari-10, is slated for launch in 2029. This cutting-edge satellite has a mission to predict space weather by harnessing high-energy particle information from its geostationary orbit. Currently in active development to support this mission is the Radiation Monitors for Space Weather (RMS). Among RMS sensors, RMS-p, responsible for observing protons, consists of two devices (RMS-p-lo, RMS-p-hi) based on the observed energy. RMS-p-lo (10MeV~500MeV) utilizes eight silicon semiconductor detectors, while RMS-p-hi (350MeV~1GeV) measures the energy of protons using a silicon semiconductor detector and a Cherenkov Scintillation detector.
We evaluated the performance of these two proton sensors through beam experiments using two different accelerator facilities. First, At the HIMAC facility, part of the National Institutes for Quantum Science and Technology(QST), a 160MeV mono-energy beam was used to test RMS-p-lo, adjusting the energy through an acrylic degrader. Second, At J-PARC, where located at the Nuclear Science Research Institute, a quasi-monoenergetic beam in the range of 400MeV-3GeV from the Al(p, xp) reaction was employed to evaluate RMS-p-hi.
For accurate evaluation of the sensor, verification through simulation is necessary for the proton beam energy coming from each accelerator. To achieve this, we created and investigated the Geant4 model for the detailed beam irradiation environment. The multi-layer detector structure of RMS-p-lo has energy deposition characteristics for specific proton energies, allowing us to derive the HIMAC beam's energy. Also, experiments at J-PARC were able to specify the proton energy corresponding to quasi-elastic scattering by analyzing the results of simulation and other scintillation detectors. We compared the beam energy data obtained through the above simulations with the data obtained through RMS-p to evaluate the beam energy and at the same time evaluated the required performance of the sensor.
We evaluated the performance of these two proton sensors through beam experiments using two different accelerator facilities. First, At the HIMAC facility, part of the National Institutes for Quantum Science and Technology(QST), a 160MeV mono-energy beam was used to test RMS-p-lo, adjusting the energy through an acrylic degrader. Second, At J-PARC, where located at the Nuclear Science Research Institute, a quasi-monoenergetic beam in the range of 400MeV-3GeV from the Al(p, xp) reaction was employed to evaluate RMS-p-hi.
For accurate evaluation of the sensor, verification through simulation is necessary for the proton beam energy coming from each accelerator. To achieve this, we created and investigated the Geant4 model for the detailed beam irradiation environment. The multi-layer detector structure of RMS-p-lo has energy deposition characteristics for specific proton energies, allowing us to derive the HIMAC beam's energy. Also, experiments at J-PARC were able to specify the proton energy corresponding to quasi-elastic scattering by analyzing the results of simulation and other scintillation detectors. We compared the beam energy data obtained through the above simulations with the data obtained through RMS-p to evaluate the beam energy and at the same time evaluated the required performance of the sensor.