TY - GEN
T1 - Large area and high-pressure GPSC/MSGC for space solar X-ray spectrometry
AU - Mendes, N. F. C.
AU - Silva, R. M. Curado da
AU - Castanheira, Matilde T. D.
AU - Veloso, J. F. C. A.
AU - Freitas, D. S. A. P.
AU - Conde, C. A. N.
AU - Wei, Fei
AU - Lin, Huaan
PY - 2005
Y1 - 2005
N2 - The study of solar X-ray emissions can be very useful to predict and prevent the undesirable consequences of charged particles generated by solar flares on Earth, since charged particles take about 20 to 40 hours to reach Earth, while X-rays that are simultaneously emitted by the same solar flares only take about 8 minutes. Herein, we present a large area window (20 cm 2) and high-pressure (up to 5 atm) hybrid Gas Proportional Scintillation Counter/Microstrip Gas Chamber (GPSC/MSGC) for a satellite borne experiment to study solar flare X-ray emissions in the energy range between 20 keV and 80 keV. Xenon filled GPSC/MSGC s are low production cost and low power consumption detectors that provide large detection areas, room temperature operation and optimal energy resolution for solar X-ray observations. Therefore, the performances of a laboratory prototype designed to study solar X-rays was analysed. Namely the energy resolution as a function of the Xe pressure (1 atm to 5 atm), since for energies above 60 keV the gas pressure is a critical parameter to detection efficiency. The results obtained for the energy resolution dependence with the gas pressure (about 6.5% up to 4 atm) will be presented and discussed.
AB - The study of solar X-ray emissions can be very useful to predict and prevent the undesirable consequences of charged particles generated by solar flares on Earth, since charged particles take about 20 to 40 hours to reach Earth, while X-rays that are simultaneously emitted by the same solar flares only take about 8 minutes. Herein, we present a large area window (20 cm 2) and high-pressure (up to 5 atm) hybrid Gas Proportional Scintillation Counter/Microstrip Gas Chamber (GPSC/MSGC) for a satellite borne experiment to study solar flare X-ray emissions in the energy range between 20 keV and 80 keV. Xenon filled GPSC/MSGC s are low production cost and low power consumption detectors that provide large detection areas, room temperature operation and optimal energy resolution for solar X-ray observations. Therefore, the performances of a laboratory prototype designed to study solar X-rays was analysed. Namely the energy resolution as a function of the Xe pressure (1 atm to 5 atm), since for energies above 60 keV the gas pressure is a critical parameter to detection efficiency. The results obtained for the energy resolution dependence with the gas pressure (about 6.5% up to 4 atm) will be presented and discussed.
UR - http://www.scopus.com/inward/record.url?scp=33846621433&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2005.1596294
DO - 10.1109/NSSMIC.2005.1596294
M3 - Conference contribution
SN - 0780392213
SN - 9780780392212
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 467
EP - 470
BT - 2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference
T2 - Nuclear Science Symposium Conference Record, 2005 IEEE
Y2 - 23 October 2005 through 29 October 2005
ER -