Measurements of Neutron Activation and Dose Rate Induced by High-Energy Medical Linear Accelerator
نویسندگان
چکیده
منابع مشابه
Diamond detector in absorbed dose measurements in high‐energy linear accelerator photon and electron beams
Diamond detectors (DD) are preferred in small field dosimetry of radiation beams because of small dose profile penumbras, better spatial resolution, and tissue-equivalent properties. We investigated a commercially available 'microdiamond' detector in realizing absorbed dose from first principles. A microdiamond detector, type TM 60019 with tandem electrometer is used to measure absorbed doses i...
متن کاملCraniospinal Irradiation in Medulloblastoma using High Energy Medical Linear Accelerator: an Innovative Approach to Planning Technique
Background: Craniospinal irradiation (CSI) of medulloblastoma poses technological challenges due to the involvement of large treatment volume. Commonly, the whole treatment length is covered with two different isocentric plans in which the junction is shifted after every five fractions to overcome the possibility of hot and cold spot.Objective: This study aims to evaluate dosimetrically and cli...
متن کاملThe Effect of Field Size and Distance from the Field Center on Neutron Contamination in Medical Linear Accelerator
Objective: Using Megavoltage photons generated by medical linear accelerator is a common modality for the treatment of malignant. The crucial problem for using photon beams >8MV is the photoneutron yields that increase the risk of secondary cancer that treated with high-energy photon beams. The contaminated neutrons produced in different components of the accelerator head and rely on many param...
متن کاملThe Effect of Field Size and Distance from the Field Center on Neutron Contamination in Medical Linear Accelerator
Objective: Using Megavoltage photons generated by medical linear accelerator is a common modality for the treatment of malignant. The crucial problem for using photon beams >8MV is the photoneutron yields that increase the risk of secondary cancer that treated with high-energy photon beams. The contaminated neutrons produced in different components of the accelerator head and rely on many param...
متن کاملThe effect of neutron-moderating materials in high-energy linear accelerator mazes.
A study was undertaken to examine the effect of lining high-energy linear accelerator mazes with neutron-moderating materials in order to reduce scattered neutron dose at the accelerator room door. Polyethylene alone reduced neutron dose by no more than 27% and did not significantly reduce gamma ray dose. Polyethylene combined with flexboron panels reduced neutron dose by 50% at most, reducing ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress in medical physics
سال: 2021
ISSN: ['2508-4445', '2508-4453']
DOI: https://doi.org/10.14316/pmp.2021.32.4.145