Problems of Ensuring Radiation Safety of Personnel when Operating Proton Therapeutic Accelerators Using an Example of the Proton Therapy Center in Dimitrograd

2019 ◽  
pp. 33-40
Author(s):  
А. Цовьянов ◽  
A. Tsoviyanov ◽  
П. Ганцовский ◽  
P. Gantsovskii ◽  
Н. Шандала ◽  
...  
Keyword(s):  
Charged Particle ◽  
Energy Range ◽  
Proton Therapy ◽  
Radiation Safety ◽  
Basic Research ◽  
Radiation Monitoring ◽  
Particle Accelerators ◽  
Ion Therapy ◽  
Therapy Center

Currently, charged particle accelerators are used not only as a tool for basic research, but they are also becoming increasingly common in industry and medicine. In Russia in the coming years it is planned to create 3 centers of proton and ion therapy. At the same time, the instrumental, methodological, metrological and regulatory support of radiation monitoring does not currently correspond to the energy range of the generated radiation. The paper analyzes the compliance of existing regulatory and advisory documents with the goals of ensuring radiation safety during proton therapy.

Synchrotrons for Hadrontherapy

2009 ◽  
Vol 02 (01) ◽  
pp. 157-178 ◽  
Author(s):  
Marco G. Pullia
Keyword(s):  
Proton Therapy ◽  
Medical Community ◽  
Carbon Ions ◽  
Carbon Ion Therapy ◽  
Carbon Ion ◽  
Ion Therapy ◽  
Therapy Center

Since 1990, when the world's first hospital-based proton therapy center opened in Loma Linda, California, interest in dedicated proton and carbon ion therapy facilities has been growing steadily. Today, many proton therapy centers are in operation, but the number of centers offering carbon ion therapy is still very low. This difference reflects the fact that protons are well accepted by the medical community, whereas radiotherapy with carbon ions is still experimental. Furthermore, accelerators for carbon ions are larger, more complicated and more expensive than those for protons only. This article describes the accelerator performance required for hadrontherapy and how this is realized, with particular emphasis on carbon ion synchrotrons.

scholarly journals Calculation of the mass stopping powers of medical, chemical, and industrial compounds and mixtures

2018 ◽  
Vol 33 (4) ◽  
pp. 356-362 ◽  
Author(s):  
Ozan Artun
Keyword(s):  
Charged Particle ◽  
Energy Range ◽  
Chemical Compounds ◽  
Maximum Error ◽  
Error Rates ◽  
Alpha Particles ◽  
Particle Accelerators ◽  
Particle Radiotherapy ◽  
Medical Radioisotopes ◽  
Industrial Compounds

We developed a new version of the X-PMSP program for estimating mass stopping powers in charged particle radiotherapy, shielding of nuclear reactors and particle accelerators, and medical and energetic radioisotope production. Accordingly, we calculated the mass stopping powers of important medical, industrial, and chemical compounds and mixtures defined by International Commission on Radiation Units and Measurements using the X-PMSP program, to contribute to the existing literature and compared our results with those from the National Institute of Standards and Technology database. The application of this program, for particles in the energy range 10-50 MeV, will be especially important in the production of medical radioisotopes, as it reduces the maximum error rate to <5 % for proton, and to ~1.6 % for alpha particles. Furthermore, the maximum error rates in charged particle radiotherapy, at the energy range 1-250 MeV, are 8.2 % for protons, and 3.0 % for alpha particles.

scholarly journals General stationary charged black holes as charged particle accelerators

2011 ◽  
Vol 84 (4) ◽  
Author(s):  
Yi Zhu ◽  
Shao-Feng Wu ◽  
Yu-Xiao Liu ◽  
Ying Jiang
Keyword(s):  
Black Holes ◽  
Charged Particle ◽  
Particle Accelerators ◽  
Charged Black Holes

scholarly journals Radiation protection tasks on the Kiev research reactor WWR-M

2009 ◽  
Vol 24 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Yuri Lobach ◽  
Valery Shevel
Keyword(s):  
Radiation Protection ◽  
Research Reactor ◽  
Radiation Safety ◽  
Radiation Monitoring ◽  
Statistical Information ◽  
Protection System ◽  
Radioactive Aerosol ◽  
Operational Experience ◽  
External Radiation ◽  
Radiation Hazards

Both the description of and the operational experience with the radiation protection system at the research reactor WWR-M are presented. The list of the factors regarding the radiation hazards during the reactor routine operation is given and the main activities on the radiation safety provision are established. The statistical information for the staff exposure, the radioactive aerosol releases and the external radiation monitoring is shown. The preliminary considerations on the system upgrading for the decommissioning are presented.

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

2020 ◽  
pp. 1-4
Author(s):  
Bing-Hao Chiang ◽  
Yong Chen ◽  
George MacDurmon ◽  
Salahuddin Ahmad
Keyword(s):  
Neutron Activation ◽  
Proton Therapy ◽  
Quantitative Assessment ◽  
Radiation Safety ◽  
Technical Note ◽  
Radioactive Materials ◽  
Secondary Neutron ◽  
System A

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.

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