[5] Parker J L. Use of calibration standards and the correction for sample self-attenuation in gamma-ray nondestructive assay[J]. Inorganic Organic Physical & Analytical Chemistry(1984).
[6] Prettyman T H, Reilly T D, Miller M C, et al. Advances in nuclear instrumentation f safeguards[R]. LAUR963757, 1996
[8] Hsue S T, Stewart J E. Guide to nondestructive assay stard preparation, criteria, availability practical considerations[R]. La13340Ms, 2000.
[10] Bosko A, Geurkov G, Croft S, et al. Advanced approach f calibration of the segmented gamma scanner f the radioassay of drummed waste[C]2006 IEEE Nuclear Science Symposium Conference Recd. 2006: 212213.
[11] Nakazawa D, Bronson F, Croft S, et al. The efficiency calibration of nondestructive gamma assay systems using semianalytical mathematical approaches[C]WM2010 Conference. 2010.