Electrical current and voltatge induced in MI-cable under irradiation in JMTR

Tatsuo Shikama, Minoru Narui, Tsutomu Sagawa

Research output: Contribution to journalArticle

Abstract

Radiation induced electrical current and voltage in MI-cables were measured under JMTR irradiation. The negative voltage of about 10V was generated in the center lead. The voltage increased with increasing irradiation dose with about -14V with a total dose of 1.1×1010Gy ionizing irradiation and 1.1×1024n/m2 fast neutron irradiation. The observed electromotive force was a so-called current driven source and the measured current was linearly dependent on the reactor power and was about 50nA for the 0.7m long MI-cables at 573K. Under a reactor full power, irradiation conditions were 6 W/g of a gamma flux(6×103Gy/s ionizing dose rate) for iron and 5×1017n/m2s and 1.1×1018n/m2s fast and thermal neutron fluxes, respectively.

Original languageEnglish
Pages (from-to)105-109
Number of pages5
JournalScience Reports of the Rerearch Institutes Tohoku University Series A-Physics
Volume45
Issue number1
Publication statusPublished - 1997 Mar 1

Keywords

  • Diagnostic Components
  • Mineral Insulated Cable
  • Radiation Induced Electromotive Force
  • Reactor Irradiation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys

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