Published May 2014 | Version v1
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Research and development of in-situ measurement for radiation distribution of waterbed

Creators

  • 1. Japan Atomic Energy Agency, Headquarters of Fukushima Partnership Operations, Fukushima, Fukushima (Japan)
  • 2. National Federation of Land Improvement Associations of Fukushima, Tokyo (Japan)

Description

By the nuclear disaster of Fukushima Daiichi Nuclear Power Plant (NPP), Tokyo Electric Power Company (TEPCO), caused by the East Japan earthquake and the following tsunami occurred on March 11, 2011, a large amount of radioactive materials was released from the NPP. Distribution of radiocesium existing on the waterbed such as lake or pond was concerned about at the present that passed for three years by an accident. Here, the direct measurement technique of the radiocesium concentration (in-situ measurement technique) was developed. This method was used a plastic scintillation detector (p-Scanner). This detector carried out quick measurement of a large area. In addition, the count-rate of p-Scanner was converted to the radiocesium concentration (Ba/kg-wet) by comparative measurement of γ-ray spectrometer. We applied the technique to the agricultural pond in Fukushima and made a map of distribution of radiocesium concentration. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-research-2014-005

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Additional details

Identifiers

DOI
10.11484/jaea-research-2014-005;

Publishing Information

Imprint Pagination
78 p.
Report number
JAEA-Research--2014-005

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
48082299
Subject category
S54: ENVIRONMENTAL SCIENCES;
Descriptors DEI
CESIUM 137; FUKUSHIMA DAIICHI NUCLEAR POWER STATION; LAKES; MAPS; MONITORING; NUCLEAR POWER PLANTS; PLASTIC SCINTILLATION DETECTORS; PONDS; REACTOR ACCIDENTS; SEDIMENTS; SPATIAL DISTRIBUTION
Descriptors DEC
ACCIDENTS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; DISTRIBUTION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MEASURING INSTRUMENTS; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; POWER PLANTS; RADIATION DETECTORS; RADIOISOTOPES; REACTOR SITES; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS; SURFACE WATERS; THERMAL POWER PLANTS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
20 refs., 51 figs., 10 tabs.; This record replaces 46021519; This record replaces 48058351