Electron energy and charge albedos - calorimetric measurement vs Monte Carlo theory

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A new calorimetric method has been employed to obtain saturated electron energy albedos for Be, C, Al, Ti, Mo, Ta, U, and UO/sub 2/ over the range of incident energies from 0.1 to 1.0 MeV. The technique was so designed to permit the simultaneous measurement of saturated charge albedos. In the cases of C, Al, Ta, and U the measurements were extended down to about 0.025 MeV. The angle of incidence was varied from 0/sup 0/ (normal) to 75/sup 0/ in steps of 15/sup 0/, with selected measurements at 82.5/sup 0/ in Be and C. In each case, state-of-the-art predictions ... continued below

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Pages: 74

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Lockwood, G.J.; Ruggles, L.E.; Miller, G.H. & Halbleib, J.A. November 1, 1981.

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Description

A new calorimetric method has been employed to obtain saturated electron energy albedos for Be, C, Al, Ti, Mo, Ta, U, and UO/sub 2/ over the range of incident energies from 0.1 to 1.0 MeV. The technique was so designed to permit the simultaneous measurement of saturated charge albedos. In the cases of C, Al, Ta, and U the measurements were extended down to about 0.025 MeV. The angle of incidence was varied from 0/sup 0/ (normal) to 75/sup 0/ in steps of 15/sup 0/, with selected measurements at 82.5/sup 0/ in Be and C. In each case, state-of-the-art predictions were obtained from a Monte Carlo model. The generally good agreement between theory and experiment over this extensive parameter space represents a strong validation of both the theoretical model and the new experimental method. Nevertheless, certain discrepancies at low incident energies, especially in high-atomic-number materials, and at all energies in the case of the U energy albedos are not completely understood.

Physical Description

Pages: 74

Notes

NTIS, PC A04/MF A01.

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  • Other: DE82006870
  • Report No.: SAND-80-1968
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5018508 | External Link
  • Office of Scientific & Technical Information Report Number: 5018508
  • Archival Resource Key: ark:/67531/metadc1061022

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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, 1981

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 2, 2018, 1:19 p.m.

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Lockwood, G.J.; Ruggles, L.E.; Miller, G.H. & Halbleib, J.A. Electron energy and charge albedos - calorimetric measurement vs Monte Carlo theory, report, November 1, 1981; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1061022/: accessed July 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.