Device and method for measuring radioactive material distribution
Device and method for measuring radioactive material distribution
PROBLEM TO BE SOLVED: To accurately measure the distribution of a radioactive material in the soil.SOLUTION: A distal end (lower end) of a head part 30 is provided with a distal end part 31 whose lower side is shaped in an acute angle. Hence, the head part 30 can intrude below a seabed by a dead weight. The upper side of the distal end part 31 is vertically arranged with a plurality (six parts in Figure) of radiation detection parts 40. Each of the radiation detection parts is constituted of a scintillator 41 that emits visual light by absorbing a gamma ray (radiation) and a photo diode 42 for outputting a pulse-like electric signal upon receipt of this visual light. A signal processing part 23 for processing the pulse-like output signal from such photo diode 42 is incorporated into a measurement unit main body 20.
JP2015141043
3 August 2015
Onishi, Seiki
b013f182-20b0-484f-9527-eb5b32ef8df7
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Onishi, Seiki and Thornton, Blair
(Inventors)
(2015)
Device and method for measuring radioactive material distribution.
JP2015141043.
Abstract
PROBLEM TO BE SOLVED: To accurately measure the distribution of a radioactive material in the soil.SOLUTION: A distal end (lower end) of a head part 30 is provided with a distal end part 31 whose lower side is shaped in an acute angle. Hence, the head part 30 can intrude below a seabed by a dead weight. The upper side of the distal end part 31 is vertically arranged with a plurality (six parts in Figure) of radiation detection parts 40. Each of the radiation detection parts is constituted of a scintillator 41 that emits visual light by absorbing a gamma ray (radiation) and a photo diode 42 for outputting a pulse-like electric signal upon receipt of this visual light. A signal processing part 23 for processing the pulse-like output signal from such photo diode 42 is incorporated into a measurement unit main body 20.
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Published date: 3 August 2015
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Local EPrints ID: 448717
URI: http://eprints.soton.ac.uk/id/eprint/448717
PURE UUID: 2debc541-2b76-4602-b232-04e2aa5c7ba9
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Date deposited: 30 Apr 2021 16:33
Last modified: 12 Dec 2021 13:37
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Inventor:
Seiki Onishi
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