Physics Design of the Mixed Spectrum Critical Assembly

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Summary: The Mixed Spectrum Superheater (MSSR) is an integral superheater reactor in which boiling occurs in an annular Boiling Water Reactor section and steam in superheated in an unmoderated fast section in the center. A Mixed Spectrum Critical Assembly (MSCA) to be operated at the Vallecitos Atomic Laboratory has been designed to mock up a 75-150 MWe prototype MSSR. The principal experimental measurements aimed at proving the feasibility of the MSSR concept include power distribution, Doppler effect, flooding effects, distribution of reactivity, control rod worths, and the effect of the control system on the power distribution.

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214 pages ; illustrations.

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Reynolds, A. B. August 1963.

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Description

Summary: The Mixed Spectrum Superheater (MSSR) is an integral superheater reactor in which boiling occurs in an annular Boiling Water Reactor section and steam in superheated in an unmoderated fast section in the center. A Mixed Spectrum Critical Assembly (MSCA) to be operated at the Vallecitos Atomic Laboratory has been designed to mock up a 75-150 MWe prototype MSSR. The principal experimental measurements aimed at proving the feasibility of the MSSR concept include power distribution, Doppler effect, flooding effects, distribution of reactivity, control rod worths, and the effect of the control system on the power distribution.

Physical Description

214 pages ; illustrations.

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Digitized from microopaque cards.

Prepared for the U.S. Atomic Energy Commission Contract AT(04-3)-189 Project Agreement 13.

Includes bibliographic references (pages 191-192).

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  • Report No.: GEAP-4320
  • Grant Number: AT(04-3)-189 PA 13
  • SuDoc Number: Y 3.At 7:22/GEAP-4320
  • Accession or Local Control No: metadc1201375
  • Archival Resource Key: ark:/67531/metadc1201375

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Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

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Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • August 1963

Added to The UNT Digital Library

  • Aug. 15, 2019, 10:26 p.m.

Description Last Updated

  • June 4, 2020, 1:43 p.m.

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Reynolds, A. B. Physics Design of the Mixed Spectrum Critical Assembly, report, August 1963; San Jose, California.. (https://digital.library.unt.edu/ark:/67531/metadc1201375/: accessed May 15, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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