MODIFICATION OF CP-5 FUEL ASSEMBLIES FOR FUEL CAPSULE IRRADIATION EXPERIMENTS

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BS>The standard vertical fuel tube assembly of the CP-5 research reactor was modified to permit diversion of heavywater coolant into the thimble for temperature-controlled irradiation experiments of capsules containing fuel specimens. The modification entailed revisions to the thimble, outer top shield plug and center shield plug. and helium sweep system. The modified thimble is provided with inlet actor flow system through the thimble cavity. The coolant in the thimble removes fission heat from the encapsulated samples introduced into the thimble cavity. Flow tests of the thimble were first performed on a flow stand, with final flow characteristics being determined in ... continued below

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Pages: 24

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Beck, W.N.; Kittel, J.H. & Brown, F.L. November 1, 1959.

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Description

BS>The standard vertical fuel tube assembly of the CP-5 research reactor was modified to permit diversion of heavywater coolant into the thimble for temperature-controlled irradiation experiments of capsules containing fuel specimens. The modification entailed revisions to the thimble, outer top shield plug and center shield plug. and helium sweep system. The modified thimble is provided with inlet actor flow system through the thimble cavity. The coolant in the thimble removes fission heat from the encapsulated samples introduced into the thimble cavity. Flow tests of the thimble were first performed on a flow stand, with final flow characteristics being determined in the reactor. A helium purge system was incorporated to remove dissociation gases trapped in the thimble cavity. Four configurations of capsules and capsule baskets were flow tested under conditions simulating operating flow conditions from 2- to 10-Mw reactor power. Irradiation capsules are now being satisfactorily operated in the modified thimbles at 2-Mw reactor power. (auth)

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Pages: 24

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NTIS

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: ANL-6041
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/4205545 | External Link
  • Office of Scientific & Technical Information Report Number: 4205545
  • Archival Resource Key: ark:/67531/metadc873333

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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.

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  • November 1, 1959

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Oct. 30, 2017, 5:06 p.m.

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Beck, W.N.; Kittel, J.H. & Brown, F.L. MODIFICATION OF CP-5 FUEL ASSEMBLIES FOR FUEL CAPSULE IRRADIATION EXPERIMENTS, report, November 1, 1959; Lemont, Illinois. (digital.library.unt.edu/ark:/67531/metadc873333/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.