Title :
Shielding of skyshine interference with radiation detection systems
Author :
Kouzes, Richard T. ; Conlin, Kenneth E. ; Kernan, Warnick J. ; Mace, Emily K. ; Siciliano, Edward R. ; Woodring, Mitchell L.
Author_Institution :
PNNL, Richland, WA, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
Skyshine, the radiation scattered from the air above a source, such as radiography or x-ray imaging systems, can be a problematic source of background gamma rays that interfere with radiation detection systems even at very large distances. The effects of skyshine have been studied for many years, but almost entirely within the context of nuclear power and radioactive waste storage. These earlier studies show that modeling of skyshine is made difficult because it must take into account huge volumes of space in the models that slow analysis significantly. This paper reports on results from various modeling and measurement efforts that examine shielding approaches to the skyshine interference problem with radiation detection systems.
Keywords :
position sensitive particle detectors; radioactive sources; radiography; background gamma rays; nuclear power; radiation detection systems; radioactive waste storage; radiography; shielding approaches; skyshine interference problem; x-ray imaging systems; Extraterrestrial measurements; Gamma ray detectors; Gamma rays; Interference; Power system modeling; Radiation detectors; Radioactive waste; Radiography; X-ray imaging; X-ray scattering;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401840