DocumentCode :
2881095
Title :
Electron accelerator options for photo-detection of fissile materials
Author :
Chan, K. C Dominic ; Turchi, Peter ; Jason, Andy
Author_Institution :
Los Alamos Nat. Lab., Los Alamos
fYear :
2007
fDate :
25-29 June 2007
Firstpage :
137
Lastpage :
139
Abstract :
For national security, it is important to detect the presence of special nuclear materials, especially highly-enriched uranium (HEU). Generally used methods for such detection include interrogation by photons and neutrons. For example, photofission in HEU can be initiated with 14-MeV photons. The resulting delayed neutrons and photons from the fission fragments are clear signatures of the presence of HEU. One can generate high- energy photons using electron accelerators via various mechanisms. In this paper, we will describe two of them, namely electron bremsstrahlung and Compton backscattered photons. We focus on these two mechanisms because they cover a wide range of accelerator requirements. Electron bremsstrahlung can be generated using a compact low-energy electron linac while the generation of Compton backscattered photons requires a high-energy electron accelerator of a few hundred MeV. We review these two options, describe their accelerator requirements, and compare their relative merits.
Keywords :
Compton effect; bremsstrahlung; electron accelerators; linear accelerators; photon production; Compton backscattered photons; compact low-energy electron linac; electron bremsstrahlung; fissile material photodetection; high-energy electron accelerator; high-energy photon generation; highly-enriched uranium; special nuclear materials; Backscatter; Delay; Electron accelerators; Electron beams; Laboratories; National security; Neutrons; Nuclear power generation; Photonics; Undulators;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
Type :
conf
DOI :
10.1109/PAC.2007.4440135
Filename :
4440135
Link To Document :
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