Determination of Absorbed and Effective Dose from Natural Background Radiation around a Nuclear Research Facility
Reads0
Chats0
TLDR
In this paper, the authors present results of outdoor absorbed dose rate and estimated effective dose from the naturally occurring radionuclides 232Th and 238U series 40K, around a Nuclear Research Reactor at the Centre for Energy Research and Training (CERT), Zaria, Nigeria.Abstract:
This study presents result of outdoor absorbed dose rate and estimated effective dose from the naturally occurring radionuclides 232Th and 238U series 40K, around a Nuclear Research Reactor at the Centre for Energy Research and Training (CERT), Zaria, Nigeria. A high-resolution in situ -ray spectrometry was used to carry out the study. CERT houses a 30Kw Research Reactor and other neutron and gamma sources for Research and Training. The values of absorbed dose rate in air for 232Th, 238U and 40K range from 8.2±2.5-24.5±3.6 nGy h 1, 1.9±1.2-4.6±2.5 nGy h 1 and 12.2 ±5-38±6.7n Gy h 1 respectively . The estimated total annual effective dose outdoor for the sites range from 27.3-79.9 µSv y 1. This showed that radiation exposure level for the public is lower than the recommended value of 1 mSv y 1.Hence, the extensive usage of radioactive materials within and around CERTread more
Citations
More filters
Journal ArticleDOI
Measurements of radioactivity levels in part of Ota Southwestern Nigeria: Implications for radiological hazards indices and excess lifetime cancer-risks
TL;DR: In this paper, the Super SPEC RS-125 radiation detector with large 2.0x2.0 NaI crystal was used to measure the activities of primordial nuclides and the radiation dose exposures rate in Iyana-Iyesi, Ota, southwestern Nigeria.
Journal ArticleDOI
Assessment of radiological parameters of soil in Kogi State, Nigeria
TL;DR: In this article, the radium levels of soil samples collected from four local government areas in Kogi State, Nigeria were measured using a hyperpure germanium detector, and the radiological hazard parameters associated with them were estimated.
Journal ArticleDOI
Assessment of indoor and outdoor radiation levels and human health risk in Sheda Science and Technology Complex and its environ, Abuja, Nigeria
TL;DR: The dosage to organs received shows that the testes have the highest dose while the liver has the lowest dose (indoor and outdoor) for the three zones, and the Annual Effective Dose Equivalents were within the permissible limits for general public exposure recommended by the ICRP.
Journal ArticleDOI
Measurement of Gamma Radiation in an Automobile Mechanic Village in Abuja, North Central, Nigeria
I. U James,I. F Moses,J. N Vandi +2 more
TL;DR: In this paper, an in-situ measurement approach was adopted using RDS-200 Universal Survey Meter and a handheld Global Positioning System (Garmin GPS 76S) equipment.
Journal ArticleDOI
Determination of Absorbed and Annual Effective Doses around Birnin Gwari Artisanal Goldmine, Kaduna State, Nigeria
TL;DR: In this article, the authors present results of outdoor absorbed dose rate and estimated annual effective dose rate from the naturally occurring radionuclides 238 U, 232 Th and 40 K around BirninGwari artisanal goldmine using INAA.
References
More filters
Journal ArticleDOI
International basic safety standards for protection against ionizing radiation of and for the safety of radiation sources
TL;DR: Jointly sponsored by Food and Agriculture Organization of the United Nations International Atomic Energy Agency International Labour Organization Nuclear Energy Agency of the OECD Pan American Health Organization World Health Organization Status: Draft 3.5 as at the end of the BSS Secretariat meeting held in Vienna from 9–13 August 2010.
Journal ArticleDOI
Gamma-ray measurements of naturally occurring radioactive samples from cyprus characteristic geological rocks
TL;DR: Using high-resolution gamma-ray spectroscopy, the terrestrial gamma radiation in all the predominant types of geological rock formations appearing in Cyprus was measured as mentioned in this paper, and the corresponding effective dose rates per person outdoors were estimated to be between 0.1 and 61.4 μSv yr −1, assuming a 20% occupancy factor.
Journal ArticleDOI
Gamma Ray Fields in the Air Due to Sources in the Ground
Kimiaki Saito,Peter Jacob +1 more
TL;DR: In this paper, the influence of soil composition upon air kerma was investigated for two different kinds of soil, and the effect of the soil composition on air particle density was analyzed for monoenergetic plane sources in and on the ground.