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Title: Improvements to the Hunter Dose tracking system

Abstract

Since 1965, the Savannah River Site (SRS) has conducted deer hunts which are open to the general public. SRS performs field monitoring for cesium-137 (Cs-137) of each harvested animal to determine whether the animal may be released to the hunter. A new field system for measuring Cs-137 in the harvested animals has been developed. The system incorporates numerous enhancements compared to the original system. The original system was composed of two Ludlum Measurements scalar-driven 2 inch x 2 inch sodium iodide counters, while the new system is based on a single Ametek Ortec Digibase-driven 2 inch x 4 inch x 16 inch sodium iodide gamma spectrometer. The new system includes a series of easy-to-assemble stainless steel encapsulated lead shields. The combination of the larger detector size and lead shielding improved the detection limit of the new system by a factor of approximately three compared to the original system. This lower detection limit allows for a larger number of measurements to be directly compared to the laboratory results, in cases where animal portions have been sampled. The results from developing and using this system are presented as well as recommendations on improvements to the overall field monitoring of the SRS hunts.

Authors:
 [1];  [1];  [1];  [1]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1378487
Report Number(s):
SRNL-STI-2017-00091
TRN: US1800560
DOE Contract Number:
AC09-08SR22470
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; DEER; CESIUM 137; GAMMA SPECTROMETERS; SAVANNAH RIVER; MONITORING

Citation Formats

Whiteside, T. S., Aucott, T. J., Brand, A. D., and Diprete, D. P.. Improvements to the Hunter Dose tracking system. United States: N. p., 2017. Web. doi:10.2172/1378487.
Whiteside, T. S., Aucott, T. J., Brand, A. D., & Diprete, D. P.. Improvements to the Hunter Dose tracking system. United States. doi:10.2172/1378487.
Whiteside, T. S., Aucott, T. J., Brand, A. D., and Diprete, D. P.. Sat . "Improvements to the Hunter Dose tracking system". United States. doi:10.2172/1378487. https://www.osti.gov/servlets/purl/1378487.
@article{osti_1378487,
title = {Improvements to the Hunter Dose tracking system},
author = {Whiteside, T. S. and Aucott, T. J. and Brand, A. D. and Diprete, D. P.},
abstractNote = {Since 1965, the Savannah River Site (SRS) has conducted deer hunts which are open to the general public. SRS performs field monitoring for cesium-137 (Cs-137) of each harvested animal to determine whether the animal may be released to the hunter. A new field system for measuring Cs-137 in the harvested animals has been developed. The system incorporates numerous enhancements compared to the original system. The original system was composed of two Ludlum Measurements scalar-driven 2 inch x 2 inch sodium iodide counters, while the new system is based on a single Ametek Ortec Digibase-driven 2 inch x 4 inch x 16 inch sodium iodide gamma spectrometer. The new system includes a series of easy-to-assemble stainless steel encapsulated lead shields. The combination of the larger detector size and lead shielding improved the detection limit of the new system by a factor of approximately three compared to the original system. This lower detection limit allows for a larger number of measurements to be directly compared to the laboratory results, in cases where animal portions have been sampled. The results from developing and using this system are presented as well as recommendations on improvements to the overall field monitoring of the SRS hunts.},
doi = {10.2172/1378487},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}

Technical Report:

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