Lab-Based Measurement of Remediation Techniques for Radiation Portal Monitors (Initial Report)

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Radiation Portal Monitors (RPM) deployed by the Second Line of Defense (SLD) are known to be sensitive to the natural environmental radioactive background. There are several techniques used to mitigate the effects of background on the monitors, but since the installation environments can vary significantly from one another the need for a standardized, systematic, study of remediation techniques was proposed and carried out. This study is not meant to serve as the absolute last word on the subject. The data collected are, however, intelligible and useful. Some compromises were made, each of which will be described in detail. The hope ... continued below

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Livesay, Jake; Guzzardo, Tyler & Lousteau, Angela L February 1, 2012.

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Description

Radiation Portal Monitors (RPM) deployed by the Second Line of Defense (SLD) are known to be sensitive to the natural environmental radioactive background. There are several techniques used to mitigate the effects of background on the monitors, but since the installation environments can vary significantly from one another the need for a standardized, systematic, study of remediation techniques was proposed and carried out. This study is not meant to serve as the absolute last word on the subject. The data collected are, however, intelligible and useful. Some compromises were made, each of which will be described in detail. The hope of this initial report is to familiarize the SLD science teams with ORNL's effort to model the effect of various remediation techniques on simple, static backgrounds. This study provides a good start toward benchmarking the model, and each additional increment of data will serve to make the model more robust. The scope of this initial study is limited to a few basic cases. Its purpose is to prove the utility of lab-based study of remediation techniques and serve as a standard data set for future use. This importance of this first step of standardization will become obvious when science teams are working in parallel on issues of remediation; having a common starting point will do away with one category of difference, thereby making easier the task of determining the sources of disagreement. Further measurements will augment this data set, allowing for further constraint of the universe of possible situations. As will be discussed in the 'Going Forward' section, more data will be included in the final report of this work. Of particular interest will be the data taken with the official TSA lead collimators, which will provide more direct results for comparison with installation data.

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  • Report No.: ORNL/TM-2012/5
  • Grant Number: DE-AC05-00OR22725
  • DOI: 10.2172/1043309 | External Link
  • Office of Scientific & Technical Information Report Number: 1043309
  • Archival Resource Key: ark:/67531/metadc834030

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • June 17, 2016, 2:49 p.m.

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Livesay, Jake; Guzzardo, Tyler & Lousteau, Angela L. Lab-Based Measurement of Remediation Techniques for Radiation Portal Monitors (Initial Report), report, February 1, 2012; United States. (digital.library.unt.edu/ark:/67531/metadc834030/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.