Characterization of a co-axial pulse tube cryocooler applied as a current lead

R. Maekawa, Y. Matsubara, A. Kato, S. Takami, M. Konno, A. Tomioka, H. Hayashi, T. Mito

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A co-axial type pulse tube cryocooler has been fabricated which is applied as a current lead for the superconducting coil. The cryocooler consists of an outer regenerator tube enclosing and thermally insulating a central pulse tube. The connection between the pulse tube and the regenerator was realized at the cold end. This arrangement allows inserting a 16 mm diameter copper rod on the axis of a cryocooler which serves as a current lead. Characterizations of the pulse tube current leads are performed by the numerical analyses and the experiments. The Equivalent Pressure Volume (EPV) method was utilized to obtain optimized refrigeration capacity with four-valve operation mode. The paper also discusses the possibility of applying a pulse tube current lead to the superconducting coils.

Original languageEnglish
Title of host publicationADVANCES IN CRYOGENIC ENGINEERING
Subtitle of host publicationTransactions of the Cryogenic Engineering Conference, CEC, Volume 51B
Pages1711-1718
Number of pages8
DOIs
StatePublished - Apr 27 2006
Externally publishedYes
EventADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference, CEC - Keystone, CO, United States
Duration: Aug 29 2005Sep 2 2005

Publication series

NameAIP Conference Proceedings
Volume823 II
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference, CEC
Country/TerritoryUnited States
CityKeystone, CO
Period08/29/0509/2/05

Keywords

  • Current lead
  • Pulse tube

Fingerprint

Dive into the research topics of 'Characterization of a co-axial pulse tube cryocooler applied as a current lead'. Together they form a unique fingerprint.

Cite this