Estimation of radiation doses associated with natural radioactivity in sand samples of the north western areas of Pakistan using Monte Carlo simulation

2005 ◽  
Vol 265 (3) ◽  
pp. 371-375 ◽  
Author(s):  
Khalid Khan ◽  
P. Akhter ◽  
S. D. Orfi
2012 ◽  
Vol 11 (7) ◽  
pp. 1355-1360
Author(s):  
Clement Ionescu ◽  
Liana Simona Sbirna ◽  
Monica Daniela Mateescu ◽  
Clementina Sabina Moldovan ◽  
Sebastian Sbirna

2020 ◽  
Author(s):  
Takakiyo Tsujiguchi ◽  
Yoko Suzuki ◽  
Mizuki Sakamoto ◽  
Kazuki Narumi ◽  
Katsuhiro Ito ◽  
...  

Abstract Emergency medical responders (EMRs), who save victims in a radiation emergency, are at risk of radiation exposure. In this study, the exposure dose to EMRs assisting contaminated patients was estimated using a Monte Carlo simulation, and will produce data that contributes to EMR education and anxiety reduction. Using the Monte Carlo simulation, we estimated radiation doses for adult computational phantoms with radioactive contamination conditions radiation dosages were based on findings from previous studies. At the contamination condition corresponding to the typical upper limit of general GM survey meters, the radiation doses of EMRs were estimated to be less than μSv per hour. In case of a heavier contamination due to mishandling of an intense radioactive source with hundreds of GBq or more, their radiation doses would be close to 100 mSv per hour. The results have implied that the radiological accident with a highly radioactive source would expose EMR to the risk of significant radiation exposure exceeding the dose limit. It is thus crucial that the authority or other party who are responsible for the health of EMRs ensures that they shall have necessary education and training on the effective measures for protecting themselves from the possible, excessive radiation exposure.


2011 ◽  
Vol 38 (2) ◽  
pp. 589-597 ◽  
Author(s):  
Ying Yi ◽  
Chao-Jen Lai ◽  
Tao Han ◽  
Yuncheng Zhong ◽  
Youtao Shen ◽  
...  

2013 ◽  
Vol 158 (2) ◽  
pp. 162-169 ◽  
Author(s):  
J. A. Minano ◽  
M. Canis ◽  
J. M. Roldan ◽  
A. Sarsa

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takakiyo Tsujiguchi ◽  
Yoko Suzuki ◽  
Mizuki Sakamoto ◽  
Kazuki Narumi ◽  
Katsuhiro Ito ◽  
...  

AbstractEmergency medical responders (EMRs) who treat victims during a radiation emergency are at risk of radiation exposure. In this study, the exposure dose to EMRs treating hypothetically contaminated patients was estimated using a Monte Carlo simulation, and the findings may be useful for educating EMRs and reducing their anxiety. The Monte Carlo simulation estimated radiation doses for adult computational phantoms based on radioactive contamination conditions and radiation dosages from previous studies. At contamination conditions below the typical upper limit of general Geiger–Müller survey meters, the radiation doses to EMRs were estimated to be less than 1 μSv per hour. In cases with greater contamination due to mishandling of an intense radioactive source (hundreds of GBq), the radiation doses to EMRs could reach approximately 100 mSv per hour. These results imply that a radiological accident with a highly radioactive source could expose EMR to significant radiation that exceeds their dose limit. Thus, authorities and other parties should ensure that EMRs receive appropriate education and training regarding measures that can be taken to protect themselves from the possibility of excessive radiation exposure. The results of this study may provide EMRs with information to take appropriate protective measures, although it is also important that they not hesitate to perform lifesaving measures because of concerns regarding radiation.


2014 ◽  
Vol 29 (3) ◽  
pp. 199-206 ◽  
Author(s):  
Abdul Kinsara ◽  
Samir Abdul-Majid ◽  
Wael El-Gammal ◽  
Tarik Albaghdadi ◽  
Abdulraof Maimani ◽  
...  

Monte Carlo simulations and dose measurements were performed for radionuclides in the whole body and trunks of different sizes in order to estimate external radiation whole body doses from patients administered with radiopharmaceuticals. Calculations were performed on cylindrical water phantoms whose height was 176 cm and for three body diameters: of 24 cm, 30 cm, and 36 cm. The investigated radionuclides were: 99mTc, 131I, 23I, 67Ga, 201Tl, and 111In. Measured and MCNP-calculated values were 2-6 times lower than the values calculated by the point source method. Additionaly, the total dose received by the public until a radionuclide is completely disintegrated was calculated. The other purpose of this work is to provide data on whole body and finger occupational doses received by technologists working in nuclear medicine. Data showed a wide variation in doses that depended on the individual technologist and the position of the dosimeter.


2015 ◽  
Vol 42 (6Part1) ◽  
pp. 3063-3075 ◽  
Author(s):  
Chao-Jen Lai ◽  
Yuncheng Zhong ◽  
Ying Yi ◽  
Tianpeng Wang ◽  
Chris C. Shaw

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