نتایج جستجو برای: neutron dosimetry

تعداد نتایج: 53966  

2016
L. I. Musabaeva Zh. A. Startseva O. V. Gribova V. V. Velikaya V. A. Lisin

The analysis of clinical use of neutron therapy with 6 MeV fast neutrons compared to conventional radiation therapy was carried out. The experience of using neutron and mixed neutron and photon therapy in patients with different radio-resistant malignant tumors shows the necessity of further studies and development of the novel approaches to densely-ionizing radiation. The results of dosimetry ...

Journal: :Epj Web of Conferences 2023

Thermal-neutron detectors based on 4H-SiC semiconductor and 10B converter reactions have many advantages for neutron dosimetry monitoring applications. These radiation-resistant are capable of stable operation in elevated-temperature environments up to 700 °C extended periods. The recent development SiC where the 10 B is incorporated into detector by ion implantation or diffusion leads interest...

Journal: :Journal of Nuclear Science and Technology 1987

Journal: :Medical physics 2016
Matthew J I Balmer Kelum A A Gamage Graeme C Taylor

PURPOSE Having been overlooked for many years, research is now starting to take into account the directional distribution of neutron workplace fields. Existing neutron dosimetry instrumentation does not account for this directional distribution, resulting in conservative estimates of dose in neutron workplace fields (by around a factor of 2, although this is heavily dependent on the type of fie...

حجازی, پیمان, سیستانی, سروش, صفری, محمد جواد,

Background and purpose: High-energy photon beams above 8-10 MV used in external radiation therapy produce neutron in dealing with the linear accelerator components and other parts in radiation field. The weakening of neutrons due to the closing jaws collimator angle, in smaller field sizes can also be a contributing factor in changing the neutron spectrum. Since a direct measurement of the...

Journal: :Journal of Aerospace Technology and Management 2013

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