115. Exposure value of Linear Accelerator Small field (Part 2)
نویسندگان
چکیده
منابع مشابه
The 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 کاملIAEA - CN - 115 - 10 High throughput , high precision 14 C AMS with a small accelerator
The costs of Accelerator Mass Spectrometry (AMS) systems for radiocarbon measurements have dropped sharply in recent years, but at $1M to $1.3M, these instruments still represent major investments. However, these costs are not excessive for a facility producing several thousand high precision C analyses per year. Here we describe methods developed at the AMS laboratory at University of Californ...
متن کاملOn the tenth value distance of the photon field along the maze of high‐energy linear accelerator vaults
There is a wide range in the reported photon tenth value distance (TVD) in the maze of high-energy linear accelerator vaults. In order to gain insight into the appropriate use of the TVD value during door design, we performed measurements of the photon dose in the maze of four vaults. In addition, our study represents the first to describe a scenario where an inner borated polyethylene (BPE) do...
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...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 1993
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00003501160