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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*
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: binghao-chiang@ouhsc.edu

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.

Type
Technical Note
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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References

Boehling, N S, Grosshans, D R, Bluett, J B et al. Dosimetric comparison of three-dimensional conformal proton radiotherapy, intensity-modulated proton therapy, and intensity-modulated radiotherapy for treatment of pediatric craniopharyngiomas. Int J Radiat Oncol Biol Phy 2012; 82: 643652.CrossRefGoogle ScholarPubMed
Mock, U, Georg, D, Bogner, J. Auberger T and Pötter R Treatment planning comparison of conventional, 3D conformal, and intensity-modulated photon (IMRT) and proton therapy for paranasal sinus carcinoma. Int J Radiat Oncol Biol Phy 2004; 58: 147154.CrossRefGoogle ScholarPubMed
Vargas, C, Fryer, A, Mahajan, C et al. Dose–volume comparison of proton therapy and intensity-modulated radiotherapy for prostate cancer. Int J Radiat Oncol Biol Phy 2008; 70: 744751.CrossRefGoogle ScholarPubMed
Yock, T, Schneider, R, Friedmann, A, Adams, J. Fullerton B and Tarbell N Proton radiotherapy for orbital rhabdomyosarcoma: clinical outcome and a dosimetric comparison with photons. Int J Radiat Oncol Biol Phy 2005; 63: 11611168.CrossRefGoogle Scholar
Paganetti H Proton therapy physics. Boca Raton, Florida, USA. CRC press 2018.CrossRefGoogle Scholar
Chiang, B-H, Bunker, A, Jin, H, Ahmad, S and Chen, Y. Developing a Monte Carlo model for MEVION S250i with HYPERSCAN and Adaptive Aperture™ pencil beam scanning proton therapy system. J Radiother Prac 2020; 18. doi: 10.1017/S1460396920000266 Google Scholar
Moritz, L E. Radiation protection at low energy proton accelerators. Radiat Prot Dosimetry 2001; 96: 297309.CrossRefGoogle ScholarPubMed
Carroll, L. Predicting long-lived, neutron-induced activation of concrete in a cyclotron vault. AIP Conference Proceedings. American Institute of Physics 2001: 301–304.CrossRefGoogle Scholar
Tesse, R, Boogert, S, Gnacadja, E et al. Simulations of the Activation of a Proton Therapy Facility Using a Complete Beamline Model With BDSIM. 10th Int Particle Accelerator Conf(IPAC’19), Melbourne, Australia, 19–24 May 2019. JACOW Publishing, Geneva, Switzerland 2019: 4176–4179.Google Scholar
National Nuclear Data website established by Brookhaven National Laboratory. https://www.nndc.bnl.gov/nudat2/indx_dec.jsp. Accessed on 4th May 2020.Google Scholar
National Institution of Standard and Technology. https://physics.nist.gov/PhysRefData/XrayMassCoef/ComTab/air.html. Accessed on 4th May 2020.Google Scholar