TY - GEN
T1 - Optimization of the Canberra UltraRadiac GM tube wrapping
AU - Zhu, H.
AU - Kane, S.
AU - Croft, S.
AU - Venkataraman, R.
AU - Bronson, F.
PY - 2006
Y1 - 2006
N2 - The UltraRadiac™ Personal Radiation Monitor is a ruggedized handheld dose rate and total dose monitoring device intended for use by first responders in the harsh environments that firefighters, Hazmat teams, paramedics and military personnel may encounter. The device is based on Geiger-Mueller (GM) tubes with lead and tin wrappings. Different options exist for different dose ranges. The photon radiation interacts with the GM tube wrapping through Compton scattering and the scattered electrons are counted through ionization in the fill gas. The amount of the ionization created in the Geiger discharge saturates and becomes independent of the initial energy deposit in the gas. The thickness of the wrapping material must be carefully optimized however in order to obtain a fairly uniform energy response to the incident photons that give rise to the secondary ionizing electrons which are actually counted. MCNP simulations and benchmark measurements were performed to establish a suitable energy compensation filter design. The results of the study will be presented and the performance of the selected design summarized in this paper.
AB - The UltraRadiac™ Personal Radiation Monitor is a ruggedized handheld dose rate and total dose monitoring device intended for use by first responders in the harsh environments that firefighters, Hazmat teams, paramedics and military personnel may encounter. The device is based on Geiger-Mueller (GM) tubes with lead and tin wrappings. Different options exist for different dose ranges. The photon radiation interacts with the GM tube wrapping through Compton scattering and the scattered electrons are counted through ionization in the fill gas. The amount of the ionization created in the Geiger discharge saturates and becomes independent of the initial energy deposit in the gas. The thickness of the wrapping material must be carefully optimized however in order to obtain a fairly uniform energy response to the incident photons that give rise to the secondary ionizing electrons which are actually counted. MCNP simulations and benchmark measurements were performed to establish a suitable energy compensation filter design. The results of the study will be presented and the performance of the selected design summarized in this paper.
UR - http://www.scopus.com/inward/record.url?scp=38649133869&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2006.355997
DO - 10.1109/NSSMIC.2006.355997
M3 - Conference contribution
AN - SCOPUS:38649133869
SN - 1424405610
SN - 9781424405619
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 923
EP - 925
BT - 2006 IEEE Nuclear Science Symposium - Conference Record
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE Nuclear Science Symposium, Medical Imaging Conference and 15th International Workshop on Room-Temperature Semiconductor X- and Gamma-Ray Detectors, Special Focus Workshops, NSS/MIC/RTSD
Y2 - 29 October 2006 through 4 November 2006
ER -