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Title: Space charge dosimeters for extremely low power measurements of radiation in shipping containers

Abstract

Methods and apparatus are described for space charge dosimeters for extremely low power measurements of radiation in shipping containers. A method includes in situ polling a suite of passive integrating ionizing radiation sensors including reading-out dosimetric data from a first passive integrating ionizing radiation sensor and a second passive integrating ionizing radiation sensor, where the first passive integrating ionizing radiation sensor and the second passive integrating ionizing radiation sensor remain situated where the dosimetric data was integrated while reading-out. Another method includes arranging a plurality of ionizing radiation sensors in a spatially dispersed array; determining a relative position of each of the plurality of ionizing radiation sensors to define a volume of interest; collecting ionizing radiation data from at least a subset of the plurality of ionizing radiation sensors; and triggering an alarm condition when a dose level of an ionizing radiation source is calculated to exceed a threshold.

Inventors:
;  [1];  [2];  [3];  [4]
  1. Alcoa, TN
  2. Oak Ridge, TN
  3. Clinton, TN
  4. Knoxville, TN
Issue Date:
Research Org.:
UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1016563
Patent Number(s):
7932828
Application Number:
US Patent Application 12/406,725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G08 - SIGNALLING G08B - SIGNALLING OR CALLING SYSTEMS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Britton, Jr, Charles, L, Buckner, Mark A, Hanson, Gregory R, and Bryan, William L. Space charge dosimeters for extremely low power measurements of radiation in shipping containers. United States: N. p., 2011. Web.
Britton, Jr, Charles, L, Buckner, Mark A, Hanson, Gregory R, & Bryan, William L. Space charge dosimeters for extremely low power measurements of radiation in shipping containers. United States.
Britton, Jr, Charles, L, Buckner, Mark A, Hanson, Gregory R, and Bryan, William L. Tue . "Space charge dosimeters for extremely low power measurements of radiation in shipping containers". United States. https://www.osti.gov/servlets/purl/1016563.
@article{osti_1016563,
title = {Space charge dosimeters for extremely low power measurements of radiation in shipping containers},
author = {Britton, Jr and Charles, L and Buckner, Mark A and Hanson, Gregory R and Bryan, William L},
abstractNote = {Methods and apparatus are described for space charge dosimeters for extremely low power measurements of radiation in shipping containers. A method includes in situ polling a suite of passive integrating ionizing radiation sensors including reading-out dosimetric data from a first passive integrating ionizing radiation sensor and a second passive integrating ionizing radiation sensor, where the first passive integrating ionizing radiation sensor and the second passive integrating ionizing radiation sensor remain situated where the dosimetric data was integrated while reading-out. Another method includes arranging a plurality of ionizing radiation sensors in a spatially dispersed array; determining a relative position of each of the plurality of ionizing radiation sensors to define a volume of interest; collecting ionizing radiation data from at least a subset of the plurality of ionizing radiation sensors; and triggering an alarm condition when a dose level of an ionizing radiation source is calculated to exceed a threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {4}
}

Patent:

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