Title:
IN-CORE MEASURING DEVICE
Document Type and Number:
Japanese Patent JPH10104360
Kind Code:
A
Abstract:
To provide an in-core measuring device capable of calibrating a gamma ray temperature meter surely, efficiently and accurately.
When the sensitivity of a gamma ray thermometer 83 is self- calibrated with a self-containing heater in the gamma ray thermometer 83, this measuring device confirms that the time variation of measuring signal output from the gamma ray thermometer 83 has converged within the value set in advance after the current value of the internal heater became a predetermined value. The device has calibration executing means 3 and 4 for offering the output signal of the gamma ray thermometer 83 output afterward to sensitivity calibrating signal of the gamma ray thermometer 83.
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Inventors:
ARAI RYOICHI
ITO HITOSHI
MAEDA HIROYUKI
ITO HITOSHI
MAEDA HIROYUKI
Application Number:
JP25953996A
Publication Date:
April 24, 1998
Filing Date:
September 30, 1996
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G21C17/108; G01T1/12; G01T3/00; G01T7/00; (IPC1-7): G01T3/00; G01T1/12; G01T7/00; G21C17/108
Attorney, Agent or Firm:
Togawa Hideaki
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