Published February 2020 | Version v1
Journal article Metadata-only

Car-borne survey of natural background gamma radiation in western, eastern and southern Thailand

Creators

  • 1. Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Aomori 036-8564 (Japan)
  • 2. Natural Radiation Survey and Analysis Research Unit, Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330 (Thailand)
  • 3. Hirosaki University Graduate School of Health Science, Hirosaki, Aomori 036-8564 (Japan)

Description

Natural background gamma radiation was measured along the main roads in the eastern, western and southern regions of Thailand using a car-borne survey system with a 3-in x 3-in NaI (Tl) scintillation spectrometer. The system was able to quickly survey a large area and obtain outdoor absorbed dose rate in air from a gamma ray pulse height distribution. A total of 19 219 data of the outdoor absorbed dose rate in air were collected. The average outdoor absorbed dose rate in air in the eastern, western and southern regions were found to be 8-127, 16-119 and 16-141 nGy h-1, respectively. The highest outdoor absorbed dose rate in air was detected in the southern region of Thailand. The corresponding average outdoor annual effective dose to the public ranged from 11.7 to 80.8 μSv. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1093/rpd/ncz272

Additional details

Identifiers

DOI
10.1093/rpd/ncz272;

Publishing Information

Journal Title
Radiation Protection Dosimetry
Journal Volume
188
Journal Issue
2
Journal Page Range
p. 174-180
ISSN
0144-8420

INIS

Country of Publication
United Kingdom
Country of Input or Organization
France
INIS RN
51108232
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY; S54: ENVIRONMENTAL SCIENCES;
Descriptors DEI
ABSORBED RADIATION DOSES; AIR; AUTOMOBILES; DOSE RATES; EFFECTIVE RADIATION DOSES; GAMMA RADIATION; OUTDOORS; THAILAND
Descriptors DEC
ASIA; DEVELOPING COUNTRIES; DOSES; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; IONIZING RADIATIONS; RADIATION DOSES; RADIATIONS; VEHICLES

Optional Information

Notes
18 refs.