MO-F-BRA-03: Secondary Neutron Dose Measurements Using CR-39 Detectors in Photon and Proton Radiotherapy

2011 ◽  
Vol 38 (6Part26) ◽  
pp. 3721-3721
Author(s):  
R A Hälg ◽  
J Besserer ◽  
S Mayer ◽  
U Schneider
Keyword(s):  
Neutron Dose ◽  
Proton Radiotherapy ◽  
Secondary Neutron ◽  
Dose Measurements ◽  
Cr 39 Detectors

SU-FF-T-289: Measurement of Secondary Neutron Dose for Scattering Modes of Proton Radiotherapy in KNCC

2007 ◽  
Vol 34 (6Part12) ◽  
pp. 2468-2468
Author(s):  
S Park ◽  
D Shin ◽  
J Kwak ◽  
M Yoon ◽  
J Shin ◽  
...  
Keyword(s):  
Neutron Dose ◽  
Proton Radiotherapy ◽  
Secondary Neutron

SU-GG-T-523: Benchmarking of An MMLC for Intensity-Modulated Proton Radiotherapy, with Emphasis On Secondary Neutron Dose

2008 ◽  
Vol 35 (6Part17) ◽  
pp. 2845-2845
Author(s):  
J Daartz ◽  
M Bangert ◽  
M Engelsman ◽  
M Bussière ◽  
U Oelfke ◽  
...  
Keyword(s):  
Neutron Dose ◽  
Proton Radiotherapy ◽  
Secondary Neutron ◽  
Intensity Modulated

ASSESSMENT OF AMBIENT NEUTRON DOSE EQUIVALENT IN SPATIALLY FRACTIONATED RADIOTHERAPY WITH PROTONS USING PHYSICAL COLLIMATORS

2020 ◽  
Vol 189 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Serdar Charyyev ◽  
C-K Chris Wang
Keyword(s):  
Monte Carlo ◽  
Neutron Dose ◽  
Monte Carlo Code ◽  
Dose Equivalent ◽  
Secondary Neutron ◽  
Fractionated Radiotherapy ◽  
Spot Scanning ◽  
Neutron Dose Equivalent ◽  
Secondary Neutrons ◽  
Proton Dose

Abstract New technique is trending in spatially fractionated radiotherapy with protons to utilize the spot scanning together with a physical collimator to obtain minibeams. The primary goal of this study is to quantify ambient neutron dose equivalent (${H}^{\ast }(10)$) due to the secondary neutrons when physical collimator is used to achieve desired minibeams. The ${H}^{\ast }(10)$ per treatment proton dose (D) was assessed using Monte Carlo code TOPAS and measured using WENDI-II detector at different angles (135, 180, 225 and 270 degrees) and distances (11 cm, 58 and 105 cm) from the phantom for two cases: with and without physical collimation. Without collimation $\frac{H^{\ast }(10)}{D}$ varied from 0.0013 to 0.242 mSv/Gy. With collimation $\frac{H^{\ast }(10)}{D}$ varied from 0.017 to 3.23 mSv/Gy. Results show that the secondary neutron dose will increase tenfold when the physical collimator is used. Regardless, it will be low and comparable to the neutron dose produced by conventional passive-scattered proton beams.

MO-E-T-617-07: Simulation of Organ Specific Secondary Neutron Dose in Proton Beam Treatments

2005 ◽  
Vol 32 (6Part15) ◽  
pp. 2071-2072
Author(s):  
H Jiang ◽  
B Wang ◽  
X Xu ◽  
H Suit ◽  
H Paganetti
Keyword(s):  
Proton Beam ◽  
Neutron Dose ◽  
Secondary Neutron ◽  
Organ Specific

SU-E-T-495: Influence of Reduced Target-To-Nozzle Distance On Secondary Neutron Dose Equivalent in Proton and Carbon Ion Radiotherapy

2015 ◽  
Vol 42 (6Part20) ◽  
pp. 3448-3448
Author(s):  
Y Sheng ◽  
K Shahnazi ◽  
W Wang ◽  
M Moyers ◽  
Y Deng ◽  
...  
Keyword(s):  
Neutron Dose ◽  
Carbon Ion Radiotherapy ◽  
Dose Equivalent ◽  
Secondary Neutron ◽  
Carbon Ion ◽  
Neutron Dose Equivalent

Evaluation of Secondary Neutron Dose in Particle and High Energy X-ray Therapy

2011 ◽  
Vol 81 (2) ◽  
pp. S875-S876
Author(s):  
T. Isobe ◽  
T. Hashimoto ◽  
H. Kumada ◽  
H. Hashii ◽  
K. Takada ◽  
...  
Keyword(s):  
High Energy ◽  
Neutron Dose ◽  
Secondary Neutron ◽  
X Ray
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