Experimental Calibration of Matching Foils for Avoiding Thermal Neutron Flux Perturbation

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概要

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• An experimental calibration of flux perturbation has been made with specially prepared neutron detecting foils producing only negligible perturbation in the thermal flux in a graphite medium. The foil material was composed of a 99.8% D<SUB>2</SUB>O solution of MnSO<SUB>4</SUB>. The manganese in the MnSO<SUB>4</SUB> served as the activating substance. The detecting foils were so prepared as to possess a moderating ratio equal to that of the medium. The calibration was made near the matching point, with foils of various concentrations of manganese, ranging from 1.39 to 13.9 Mn-mg/cc.<BR>The results of experiment indicated that the perturbation near the matching point was fairly insensitive to manganese concentration. The matching concentration was determined graphically.

• 一般社団法人 日本原子力学会の論文

著者

• ICHIMORI Toshihiro

  Japan Atomic Energy Research Institute

• OBU Makoto

  Japan Atomic Energy Research Institute

関連論文

• Proton-Recoil Counter Technique for Measurement of Fast Neutron Spectrum
• Experimental Calibration of Matching Foils for Avoiding Thermal Neutron Flux Perturbation

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