Characterization of secondary neutron production during proton therapy

AbstractMeasurement of the energy spectrum of secondary neutrons were carried out at the OncoRay Proton Therapy facility in Dresden, following an approach originating in neutron metrology which is well suited for both the characterization of secondary neutron fields at proton therapy facilities and the validation of Monte Carlo simulations. For the experiment, a brass target was placed in the proton beam and Bonner spheres measurements were made at a distance of 2 m from the target and at different angles, 15° to 120°, with respect to the incoming proton beam. The measured spectra were compared to Monte Carlo simulations.

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A scintillator-based approach to monitor secondary neutron production during proton therapy

Medical Physics ◽

10.1118/1.4963813 ◽

2016 ◽

Vol 43 (11) ◽

pp. 5915-5924 ◽

Cited By ~ 5

Author(s):

S. D. Clarke ◽

E. Pryser ◽

B. M. Wieger ◽

S. A. Pozzi ◽

R. A. Haelg ◽

...

Keyword(s):

Proton Therapy ◽

Neutron Production ◽

Secondary Neutron

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Characterization of the HollandPTC proton therapy beamline dedicated to uveal melanoma treatment and an interinstitutional comparison

Medical Physics ◽

10.1002/mp.15024 ◽

2021 ◽

Author(s):

Emmanuelle Fleury ◽

Petra Trnková ◽

Kees Spruijt ◽

Joël Herault ◽

Franciska Lebbink ◽

...

Keyword(s):

Uveal Melanoma ◽

Proton Therapy ◽

Melanoma Treatment

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Characterization of passive dosimeters in proton pencil beam scanning – A EURADOS intercomparison for mailed dosimetry audits in proton therapy centres

Physica Medica ◽

10.1016/j.ejmp.2021.01.073 ◽

2021 ◽

Vol 82 ◽

pp. 134-143

Author(s):

M. De Saint-Hubert ◽

C. De Angelis ◽

Ž. Knežević ◽

B. Michalec ◽

B. Reniers ◽

...

Keyword(s):

Proton Therapy ◽

Pencil Beam ◽

Beam Scanning ◽

Pencil Beam Scanning

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Accurate characterization of metal implants and human materials using novel proton counting detector for Monte Carlo dose calculation in proton therapy

Medical Imaging 2021: Physics of Medical Imaging ◽

10.1117/12.2581751 ◽

2021 ◽

Author(s):

Serdar Charyyev ◽

Chih-Wei Chang ◽

Joseph M. Harms ◽

Cristina Oancea ◽

Tim Yoon ◽

...

Keyword(s):

Monte Carlo ◽

Proton Therapy ◽

Dose Calculation ◽

Metal Implants ◽

Monte Carlo Dose Calculation

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Improved model for secondary neutron production in nucleus-nucleus collision at intermediate energies

10.1051/ndata:07311 ◽

2007 ◽

Author(s):

L. W. Townsend ◽

S. Sriprisan ◽

F. A. Cucinotta

Keyword(s):

Neutron Production ◽

Nucleus Collision ◽

Secondary Neutron ◽

Intermediate Energies ◽

Improved Model ◽

Nucleus Nucleus Collision

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

Journal of Radiotherapy in Practice ◽

10.1017/s1460396920000515 ◽

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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