Radiation damage in reactors

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From topical conference on energy; Chicago, Illinois, USA (4 Feb 1974). Fuel, cladding, structural materials, moderators, coolants, pressure vessels, and other components of nuclear reactors are bombarded by fast and thermal neutrons (with fluxes up to and above 10/sup 15/ cm/sup -2/ sec/sup -1/) at elevated temperatures. Fuel elements are also exposed to fission fragments; all components are exposed to high fluxes of gamma rays. As a result the physical properties of materials are modified, usually in undesirable ways. Brittleness, altered creep. and swelling which leads to complex deformations and induced stress are common problems. A broad understanding of these ... continued below

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Pages: 20

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Vineyard, G.H. January 1, 1973.

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Description

From topical conference on energy; Chicago, Illinois, USA (4 Feb 1974). Fuel, cladding, structural materials, moderators, coolants, pressure vessels, and other components of nuclear reactors are bombarded by fast and thermal neutrons (with fluxes up to and above 10/sup 15/ cm/sup -2/ sec/sup -1/) at elevated temperatures. Fuel elements are also exposed to fission fragments; all components are exposed to high fluxes of gamma rays. As a result the physical properties of materials are modified, usually in undesirable ways. Brittleness, altered creep. and swelling which leads to complex deformations and induced stress are common problems. A broad understanding of these effects in terms of displaced atoms, point defects, dislocations. disordered regions, voids, and transmutation-induced impurities has been developed. Much empirical information is available, and means for lessening certain effects have been found. Knowledge of the details of atomic mechanisms, particularly their quantitative aspects, in the broad range of materials of interest is still inadequate, and the body of empirical data, particularly at the higher levels of exposure, needs to be extended. Bombardment of thin specimens with charged particles from accelerators has been a useful tool for simulating high neutron exposure, but the degree to which the simulation is adequate needs further investigation. (auth)

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Pages: 20

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Dep. NTIS

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  • Topical conference on energy, Chicago, Illinois, USA, 4 Feb 1974

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  • Report No.: BNL--18574
  • Report No.: CONF-740201--1
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 4308544
  • Archival Resource Key: ark:/67531/metadc1022880

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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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  • January 1, 1973

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

Description Last Updated

  • Oct. 26, 2017, 12:56 p.m.

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Vineyard, G.H. Radiation damage in reactors, article, January 1, 1973; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1022880/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.