Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Ali Negarestani"'
Publikováno v:
Iranian Journal of Medical Physics, Vol 21, Iss 2, Pp 130-137 (2024)
Introduction: The presence of neutron contamination in medical linear accelerators poses a significant challenge in radiation therapy. Numerous studies have addressed the estimation of neutron levels, often relying on electronic equipment to extract
Externí odkaz:
https://doaj.org/article/7291ccf401d34c4991d5556f854b25c4
Publikováno v:
Radiation Protection Dosimetry. 199:116-123
Thermoluminescence dosimetry is considered as an effective method in estimating the absorbed doses to organs in different imaging modalities. The present study focuses on dosimetry in dual-energy X-ray absorptiometry scans, for patients, and phantoms
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 326:1437-1446
Radon in potable water increases the absorbable dosage by digestive and respiratory systems. Radon concentration was in the range of 0.92–17.12 Bq L−1. The maximum total effective dose of lung and stomach was 168.11 µSv y−1 for adults. As much
Publikováno v:
Radiation Protection Dosimetry. 187:390-401
In this study, a new model based on electric circuit theory has been introduced to simulate the dynamics of radioactive chemically inert gases in the human body. For this manner, it is assumed that inert gas is transported through the body to various
Autor:
Ali Negarestani, S. Mehdi Hashemi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 913:20-27
In this study, the performance of two GEM-type structures for the detection of alpha particle tracks in gaseous detectors based on SQS mode is presented. The operation of these structures was investigated in the presence of air, pure argon and P10 ga
Publikováno v:
Radiation Physics and Chemistry. 196:110114
Publikováno v:
Journal of Biomedical Physics & Engineering
Journal of Biomedical Physics and Engineering, Vol 10, Iss 5, Pp 569-574 (2020)
Journal of Biomedical Physics and Engineering, Vol 10, Iss 5, Pp 569-574 (2020)
Background: Thermoluminescence dosimetry(TLD) has been known as one of the most effective methods for dose estimation in diagnostic radiology. Orthopantomogram (OPG) imaging is used by many dentists, oral and maxillofacial surgeons as an effective to
Publikováno v:
Nuclear Engineering and Technology, Vol 50, Iss 5, Pp 751-757 (2018)
In this article, a UV sensor that is an appropriate tool for fire detection has been designed and constructed. The structure of this UV sensor is an air-filled single-wire detector that is able to operate under normal air condition. A reflective CsI
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 884:128-135
In this study, the design, simulation and construction of three micro pattern gas-detectors, THGEM, with different geometric dimensions are presented. Moreover, their ability of operation in SQS mode to determine the incident rays position without us