Efficiency of TTAC's ORTEC IDM

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ORNL's Technical Testing and Analysis Center (TTAC) acquired a High Purity Germanium Detector (HPGe) from ORTEC - a variant called an Interchangeable Detection Module (IDM). This detector has excellent energy resolution as well as high intrinsic efficiency. The purpose of this report is to detail the determination of the efficiency curve of the IDM, so future measurements can quantify the (otherwise unknown) activity of sources. Without such a curve, the activity cannot be directly reported by use of the IDM alone - a separate device such as an ion chamber would be required. This builds upon the capability of TTAC. ... continued below

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Livesay, Jake; Combs, Jason C; Margrave, Timothy E & Miller, Ian J August 1, 2012.

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ORNL's Technical Testing and Analysis Center (TTAC) acquired a High Purity Germanium Detector (HPGe) from ORTEC - a variant called an Interchangeable Detection Module (IDM). This detector has excellent energy resolution as well as high intrinsic efficiency. The purpose of this report is to detail the determination of the efficiency curve of the IDM, so future measurements can quantify the (otherwise unknown) activity of sources. Without such a curve, the activity cannot be directly reported by use of the IDM alone - a separate device such as an ion chamber would be required. This builds upon the capability of TTAC. The method for determining the energy-dependent intrinsic efficiency is laid-out in this report. It's noteworthy that this basic technique can be applied to any spectroscopic radiation detector, independent of the specific type (e.g. NaI, CzT, ClYC).

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  • Report No.: ORNL/TM-2012/297
  • Grant Number: DE-AC05-00OR22725
  • DOI: 10.2172/1048166 | External Link
  • Office of Scientific & Technical Information Report Number: 1048166
  • Archival Resource Key: ark:/67531/metadc830040

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  • August 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • Dec. 7, 2016, 11:03 a.m.

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Livesay, Jake; Combs, Jason C; Margrave, Timothy E & Miller, Ian J. Efficiency of TTAC's ORTEC IDM, report, August 1, 2012; United States. (digital.library.unt.edu/ark:/67531/metadc830040/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.