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Quantitative assessment of the production of radioactive materials by the Mevion S250i Hyperscan proton therapy system: a year-long survey

Published online by Cambridge University Press:  08 July 2020

Bing-Hao Chiang Open the ORCID record for Bing-Hao Chiang [Opens in a new window] ,
Yong Chen ,
George MacDurmon  and
Salahuddin Ahmad
Bing-Hao Chiang*
Affiliation:
Department of Radiation Oncology, Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
Yong Chen
Affiliation:
Department of Radiation Oncology, Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
George MacDurmon
Affiliation:
Department of Radiation Oncology, Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
Salahuddin Ahmad
Affiliation:
Department of Radiation Oncology, Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
*
Author for correspondence: Bing-Hao Chiang, Department of Radiation Oncology, Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA. E-mail: [email protected]
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Abstract

Introduction:

This technical note describes a quantitative assessment of the production of radioactive materials during a year-long clinical operation of a Mevion S250i Hyperscan proton therapy system. The production of accumulated radioactive materials plays an important role in determining radiation safety in and around the proton therapy facilities.

Methods:

We have conducted a weekly room survey, every week for a year, during normal clinical operation.

Results and conclusions:

We estimated the accumulated activity from secondary neutron activation on aluminium structures at 3 m away from isocentre in the beamline to be less than 300 μCi.

Keywords

Mevion S250i Hyperscanproton therapyradioactive materialsroom survey
Type
Technical Note
Information
Journal of Radiotherapy in Practice , Volume 20 , Issue 3 , September 2021 , pp. 361 - 364
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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