Attenuation of primary and scatter radiation in concrete and steel for 18 MV X-rays from a clinac-20 linear accelerator

Fred G. Abrath; Julia Bello; James A. Purdy

doi:10.1097/00004032-198311000-00002

Attenuation of primary and scatter radiation in concrete and steel for 18 MV X-rays from a clinac-20 linear accelerator

Fred G. Abrath, Julia Bello, James A. Purdy

Department of Radiation Oncology

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

With the increasing number of high-energy linear accelerators being installed in radiation-therapy facilities, an increasing need exists for carefully measured data concerning the shielding parameters of photon radiation in the energy range above 10 MeV. In this study, the 18 MV X-ray beam from a Varian Clinac® 20 linear accelerator was employed. Transmission parameters were measured for the primary X-ray beam in concrete and steel. The tenth value layer for steel was 11.3 ± 0.6 cm and for concrete 45.0 ± 2.0 cm. Also measured were the transmission parameters for scattered radiation vs angle in concrete and steel.

Original language	English
Pages (from-to)	969-973
Number of pages	5
Journal	Health Physics
Volume	45
Issue number	5
DOIs	https://doi.org/10.1097/00004032-198311000-00002
State	Published - Nov 1983

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AU - Purdy, James A.

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Attenuation of primary and scatter radiation in concrete and steel for 18 MV X-rays from a clinac-20 linear accelerator

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