Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Mojtaba Shamsaie Zafarghandi"'
Publikováno v:
Vacuum. 161:194-200
Extrapolation chamber is a special parallel-plate ionization chamber, particularly suggested for low penetrating radiations. Its sensitive volume is varied through a change of the inter-electrode distance, ideally satisfying the Bragg-Gray cavity the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25e61dc5d1d47555a5dd9ab3955e73af
https://doi.org/10.1016/j.vacuum.2018.10.081
https://doi.org/10.1016/j.vacuum.2018.10.081
Publikováno v:
Vacuum. 136:73-76
In this study, the mass attenuation coefficient for some polymers has been determined using MCNP4C code. The simulation results were compared with available experimental data and predictions from the XCOM program in the gamma ray energies, 59.5, 279.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c8eb7f4b70d36e72eb31ad7dcee281b
https://doi.org/10.1016/j.vacuum.2016.11.011
https://doi.org/10.1016/j.vacuum.2016.11.011
Publikováno v:
Radiation and environmental biophysics. 59(2)
Monte Carlo codes have been used for approximately 80 years to solve various problems in medical physics. In this paper, the importance of the MCNPX code in treatment planning is highlighted. As illustrative examples of the role of MCNPX in this fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f0d87036c67b429da5ac88b885b42fa
https://pubmed.ncbi.nlm.nih.gov/32240360
https://pubmed.ncbi.nlm.nih.gov/32240360
Publikováno v:
Nuclear Science and Techniques. 28
Measurement of dose distribution in patients during radiotherapy is impossible. The Monte Carlo simulation is an alternative method for dose calculations. In routine radiotherapy, the source-to-surface distance (SSD) method is not practical for an is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e78a4559e1e5177e13e4edf5b748a6e
https://doi.org/10.1007/s41365-017-0275-y
https://doi.org/10.1007/s41365-017-0275-y
Publikováno v:
Australasian physicalengineering sciences in medicine. 41(2)
The SAVI has gained widespread use for accelerated partial breast irradiation (APBI) brachytherapy. Treatments with SAVI produce inherent heterogeneities including variable backscatter due to proximity to the tissue-air interface and variable cavity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::155e16218a4314ab55807653bb880c65
https://pubmed.ncbi.nlm.nih.gov/29756165
https://pubmed.ncbi.nlm.nih.gov/29756165
Autor:
Arjang Shahvar, Mohammadreza Ghasemi, Anita Alipoor, Seyed Milad Vahabi, Mojtaba Shamsaie Zafarghandi
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 301:91-96
Extrapolation chamber is the only primary standard dosimeter for beta radiation. With the aim to test new configurations and materials using easily-available and low-cost materials and fulfill the need of a chamber for scientific metrological purpose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e317f40c939c7160555d0a8ea85a853
https://doi.org/10.1007/s10967-014-3117-y
https://doi.org/10.1007/s10967-014-3117-y
Autor:
Anita Alipoor, Arjang Shahvar, Mojtaba Shamsaie Zafarghandi, Mohammadreza Ghasemi, Seyed Milad Vahabi
Publikováno v:
Radiation Measurements. 59:284-287
Ionization chambers are the most widely used instruments for dosimetry in radiotherapy. With the aim to test new configurations and materials using low-cost and easily-available components, verify the possibility of its application in the gamma radia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4812af938f0bc54ec98e6ceafa6a2c0
https://doi.org/10.1016/j.radmeas.2013.09.004
https://doi.org/10.1016/j.radmeas.2013.09.004
Publikováno v:
Journal of Testing and Evaluation. 47:20170755
The attenuation coefficient is an important parameter to describe the penetration of photons in biological materials, such as vitamins. In this study, a novel simulation model based on the Monte Carlo simulation has been utilized to calculate the mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad2d192af1f8ef891c9d5f05dc006c02
https://doi.org/10.1520/jte20170755
https://doi.org/10.1520/jte20170755
Autor:
Mojtaba Shamsaie Zafarghandi, Mohammad Reza Ay, Arman Rahmim, Pardis Ghafarian, Parham Geramifar
Publikováno v:
Molecular imaging and biology. 15(6)
Purpose: We investigated the magnitude of respiratory-induced errors in tumor maximum standardized uptake value (SUVmax), localization,and volume for differentrespiratory motion traces and various lesion sizes in different locations of the thorax and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b01eb57c3ca08962e57d584ff3427009
https://pubmed.ncbi.nlm.nih.gov/23780352
https://pubmed.ncbi.nlm.nih.gov/23780352