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Selection of an Appropriate Air Kerma Rate Constant for 75Se Sources.
MedLine Citation:
PMID:  23532080     Owner:  NLM     Status:  In-Data-Review    
Monte Carlo simulation techniques using a Monte Carlo N-Particle code (MCNP5) analyzed six Source Production & Equipment Co., Inc., Se industrial radiography sources to determine an appropriate air kerma rate constant for Se, factoring in source encapsulation and compared to a theoretical approximation. Based on this study, an air kerma rate constant was calculated to be 17.7 Gy cm h Ci (0.203 R m h Ci), which was found to be five times lower than values published in the 1992 Edition of the Radiological Health Handbook and Oak Ridge National Laboratory RISC-45. Simulations were also employed to determine the effects of self-attenuation with the SPEC sources, the relationship between photon transmission values, and the thickness of various shielding materials in reducing exposure rates from a Se source.
Blake H Currier; John J Munro; David C Medich
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Health physics     Volume:  104     ISSN:  1538-5159     ISO Abbreviation:  Health Phys     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-03-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985093R     Medline TA:  Health Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  511-6     Citation Subset:  IM    
*University of Massachusetts Lowell, Pananski Hall, One University Avenue, Lowell, MA 01854; †Source Production & Equipment Co., 113 Teal Street, St. Rose, LA 70087; §Worcester Polytechnic Institute, 100 Salisbury St., Worcester, MA 01609.
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