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Title:
DEVICE FOR MEASURING RADIATION
Document Type and Number:
Japanese Patent JP2008145427
Kind Code:
A
Abstract:

To provide a survey meter having a radiation detector capable of elongating the size and thinning the diameter easily and inexpensively, and efficiently measuring radioactive contamination in a pipe.

The survey meter 20 for measuring surface contamination in a pipe is equipped with a rod-shaped light guide part 1, comprising the first light guide part 12 comprising a wavelength shift member and the second light guide part 13, comprising a transparent member, and having a prescribed length wherein each end surface part is connected; a reflecting part 4 connected to the end surface on the fist light guide part 12 side; a photoelectric conversion part 3 connected to the end surface on the second light guide part 13 side; a scintillator part 2 arranged on the periphery of the light guide part 1; a shielding part 6 arranged on the periphery of the scintillator part 2, having the functions of transmitting radiation and blocking light from the outside; and a signal processing display part 18 for processing a signal outputted from the photoelectric conversion part 3.


Inventors:
SUMIDA AKIO
MAKINO SHUNICHIRO
IZUMI MIKIO
GOTO TETSUO
Application Number:
JP2007294432A
Publication Date:
June 26, 2008
Filing Date:
November 13, 2007
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
G01T1/20; G01T1/169
Domestic Patent References:
JPH0843535A1996-02-16
JPH10186034A1998-07-14
JP2003315463A2003-11-06
JP2003530544A2003-10-14
JP2001056381A2001-02-27
JP2005241447A2005-09-08
JP2005265498A2005-09-29
Attorney, Agent or Firm:
Toshio Kanata
Yoshiaki Inomata
Hiroko Inomata