Majorana One-Tonne Cryostat Cooling Conceptual Feasibility Study Rev 1

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This report evaluates the conceptual plans for a cryostat cooling design for the MAJORANA DEMONSTRATOR (MJD) one-tonne (S4) experiment. This document is based upon previous design work and experimental results used to evaluate the current MJD thermal design. A feasibility study of a cooling system for S4 based on the MJD thermosiphon experiment is presented. The one-tonne experiment will be a scaled up version of the MJD. There will be many cryostats in the S4 experiment. In this document a cryostat with up to 19 strings of germanium crystals is analyzed. Aside from an extra outer ring of crystals, the ... continued below

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Reid, Douglas J.; Fast, James E.; Orrell, John L. & Aguayo Navarrete, Estanislao June 27, 2011.

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Description

This report evaluates the conceptual plans for a cryostat cooling design for the MAJORANA DEMONSTRATOR (MJD) one-tonne (S4) experiment. This document is based upon previous design work and experimental results used to evaluate the current MJD thermal design. A feasibility study of a cooling system for S4 based on the MJD thermosiphon experiment is presented. The one-tonne experiment will be a scaled up version of the MJD. There will be many cryostats in the S4 experiment. In this document a cryostat with up to 19 strings of germanium crystals is analyzed. Aside from an extra outer ring of crystals, the geometry of the cryostat for S4 is very similar to that for the MJD thermosiphon experiment. The materials used in the fabrication of both of these ultra-low background experiments will be underground-electroformed copper. The current MJD uses a two-phase liquid-gas cooling system to provide constant operating temperature. This document presents a theoretical investigation of a cooling system for the S4 experiment and evaluates the heat transfer performance requirements for such a system.

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  • Report No.: PNNL-20150 Rev 1
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/1021286 | External Link
  • Office of Scientific & Technical Information Report Number: 1021286
  • Archival Resource Key: ark:/67531/metadc845543

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  • June 27, 2011

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Nov. 29, 2016, 7:17 p.m.

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Reid, Douglas J.; Fast, James E.; Orrell, John L. & Aguayo Navarrete, Estanislao. Majorana One-Tonne Cryostat Cooling Conceptual Feasibility Study Rev 1, report, June 27, 2011; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc845543/: accessed December 10, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.