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Studying the effects of the lung mass on the absorbed dose to the lung due to the administration of 131I for therapeutic purposes
131I is a radiopharmaceutical used for the treatment of advanced lung cancer, resulting in high organ doses. The effects of the lung mass on the absorbed dose to the lung due to the administration of 131I were studied in this research...
Optimization of Body Composition Analyzer Facility, Considering Operator Dosimetry
code.
Results: We found that the PE-Bi shield decreases the absorbed dose to 77%
compared with “no shield” and 74% compared to concrete. Also, the reduction rate of
dose equivalent was 95% compared to “no shield” and 91% compared to colemanite...
Studying the effect of the lung size variation on dosimetry and systematic parameters of FUM-IVNAA facility
phantoms with adjustable lungs were modeled in IVNAA facility using Monte Carlo MCNP code. Obtained results showed that the fluctuation of the organ-absorbed dose and effective dose due to the lung size variation is negligible (less than 3 %). Also...
Depth dose evaluation for prostate cancer treatment using boron neutron capture therapy
Considering the advantages of boron neutron capture therapy (BNCT) in treating prostate cancer, the amount of dose delivered to tumour and healthy tissues must be determined. Therefore, in this study, Monte Carlo analyses ...
Investigation of Different Options to Establish the Electron Equilibrium in Several Thermoluminescent Dosimeters
This study aimed to investigate effects of the TLD size and type on the absorbed dose value by using of Monte Carlo calculations. The options to establish the electron equilibrium was also studied on Lithium Fluride (LiF),
Calcium Fluoride...
Determination of the uncertainty in lung dose in an external photon exposure
, this standard data may not be valid for various patients with different sizes, masses, and anatomies. In the case of chest imaging that widely used for diagnosis of pulmonary embolism or lung cancer, the lung absorbed dose may be influenced by the mass and shape...
Optimization of Body Composition Analyzer Facility, Considering Operator Dosimetry
the absorbed dose to 86% in compare with no shield state and 81% in compare to concrete. Also the rate of equivalent dose is reduced 97% in contrast to no shield and 94% to colemanite. The annual equivalent dose for an operator who works 8-hour a day, would...
برآورد دز رسیده از یک سیستم مین یاب به روش پس پراکندگی نوترون
landmine-detection systems have been studied widely, but the protection against radiation in these studies has rarely been studied. Systems dosimetry due to the neutron source is important. In this paper, the dose rate ...
Shielding studies on a total-body neutron activation facility
the patient absorbed dose per
incident neutron in a body chemical composition
analyzer....
Estimation of Absorbed and Effective Doses on the Different Body Organs from Monoenergetic Neutron Source (10-9MeV-20MeV) Based on the ORNL Analytical Adult Phantom
relationship between absorbed dose and development of cancer. So, assessment of radiation dose and its related risks before exposure to radiation is an important task in radiation protection. International Commission on Radiation Protection reported that direct...