SHIELD SMALL SOURCE EXPERIMENTS. Summary Report

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A shielding experiment was performed that provided a proof test of the shield calculation methods used in the MCR shield desing and provides a partial confirmation of cross-section data. Measurements were made with a gamma spectrometer behind a configuration consisting of a layer of gamma shielding material followed by a neutron shield, with the configuration exposed to neutrons from a Po --Be source. The test configuration is illustrated. Secondary gamma rays produced in the assembly were measured with the spectrometer and compared directly with calculations. Calculations were performed with the ADONIS three- dimensional rectangular geometry Monte Carlo code, which is ... continued below

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Pages: 69

Creation Information

Schamberger, R.; Celnik, J. & Ross, R. November 1, 1963.

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Description

A shielding experiment was performed that provided a proof test of the shield calculation methods used in the MCR shield desing and provides a partial confirmation of cross-section data. Measurements were made with a gamma spectrometer behind a configuration consisting of a layer of gamma shielding material followed by a neutron shield, with the configuration exposed to neutrons from a Po --Be source. The test configuration is illustrated. Secondary gamma rays produced in the assembly were measured with the spectrometer and compared directly with calculations. Calculations were performed with the ADONIS three- dimensional rectangular geometry Monte Carlo code, which is derived from the one- dimensional Monte Carlo codes used in the basic MCR shield analysis. Experiments were performed with samples of iron, lead, and stainless steel, and calculations were completed for the no-sample configuration and for an iron sample. Experimental and calculated detector response for these two cases are compared. Agreement is within a factor of two at all energies, and the calculated energy deposited in the crystal is within 25% of that observed for the no-sample case and within l5% for the iron case. This agreement demonstrates the validity of the experiment and of the basic calculation techniques used, and gives support to the secondary gamma production cross sections used for iron. (auth)

Physical Description

Pages: 69

Source

  • Other Information: For General Motors Corp. Allison Div., Indianapolis. Orig. Receipt Date: 31-DEC-64

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  • Report No.: UNC-5072
  • Grant Number: AT(30-1)-3078, SUBCONTRACT NO. 1
  • DOI: 10.2172/4081098 | External Link
  • Office of Scientific & Technical Information Report Number: 4081098
  • Archival Resource Key: ark:/67531/metadc868490

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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

  • November 1, 1963

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

Description Last Updated

  • Dec. 1, 2016, 7:53 p.m.

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Schamberger, R.; Celnik, J. & Ross, R. SHIELD SMALL SOURCE EXPERIMENTS. Summary Report, report, November 1, 1963; United States. (digital.library.unt.edu/ark:/67531/metadc868490/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.