Portable Detector FY 2000 Task 4 Completion Report

One of 155 reports in the series: Fiscal Year 2000 available on this site.

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Description

The fabrication of boron-covered crystal scintillation detectors is described. Bulk boron-loaded epoxy material was cast and cut into 0.5 mm-thick wafers that were mounted on CdWO{sub 4} and CsI(Tl) crystals. The crystals were mounted on miniature photomultiplier tubes and gamma spectra were obtained with the detectors. The ability of these small detectors to produce spectra that can be analyzed to provide isotopic identification has been demonstrated. In addition, the detector can produce a signature indicating the presence of neutrons. The same miniature size of these detectors that makes them attractive for hand-held portable use, may be a limiting factor in ... continued below

Physical Description

11 pages

Creation Information

Bell, Z. W. & Moyer, M. W. February 1, 2001.

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  • Oak Ridge Y-12 Plant
    Publisher Info: Oak Ridge Y-12 Plant, TN (United States)
    Place of Publication: Tennessee

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  • Main Title: Portable Detector FY 2000 Task 4 Completion Report
  • Series Title: Fiscal Year 2000

Description

The fabrication of boron-covered crystal scintillation detectors is described. Bulk boron-loaded epoxy material was cast and cut into 0.5 mm-thick wafers that were mounted on CdWO{sub 4} and CsI(Tl) crystals. The crystals were mounted on miniature photomultiplier tubes and gamma spectra were obtained with the detectors. The ability of these small detectors to produce spectra that can be analyzed to provide isotopic identification has been demonstrated. In addition, the detector can produce a signature indicating the presence of neutrons. The same miniature size of these detectors that makes them attractive for hand-held portable use, may be a limiting factor in their efficiency. The small size of the scintillation crystals makes them not as efficient as larger NaI(Tl) crystals simply by virtue of significantly decreased sensitive volume and surface area. It may be worthwhile to consider slightly larger crystals (approximately 15 mm cubic CdWO{sub 4}) mounted on rectangular photomultipliers in a detecting head connected to the electronics package by a signal cable.

Physical Description

11 pages

Source

  • Other Information: PBD: 1 Feb 2001

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Identifier

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  • Report No.: Y-2481
  • Grant Number: AC05-00OR22800
  • DOI: 10.2172/775526 | External Link
  • Office of Scientific & Technical Information Report Number: 775526
  • Archival Resource Key: ark:/67531/metadc721249

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Office of Scientific & Technical Information Technical Reports

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

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • February 1, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

Description Last Updated

  • Jan. 23, 2017, 1:25 p.m.

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Citations, Rights, Re-Use

Bell, Z. W. & Moyer, M. W. Portable Detector FY 2000 Task 4 Completion Report, report, February 1, 2001; Tennessee. (digital.library.unt.edu/ark:/67531/metadc721249/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.