scholarly journals An Assessment of the Secondary Neutron Dose in the Passive Scattering Proton Beam Facility of the National Cancer Center

2017 ◽  
Vol 49 (4) ◽  
pp. 801-809 ◽  
Author(s):  
Sang-Eun Han ◽  
Gyuseong Cho ◽  
Se Byeong Lee
2005 ◽  
Vol 32 (6Part15) ◽  
pp. 2071-2072
Author(s):  
H Jiang ◽  
B Wang ◽  
X Xu ◽  
H Suit ◽  
H Paganetti

2010 ◽  
Vol 56 (4) ◽  
pp. 1208-1214 ◽  
Author(s):  
Dongho Shin ◽  
Dongwook Kim ◽  
Young Kyung Lim ◽  
Jungwook Shin ◽  
Sung Hwan Ahn ◽  
...  

2008 ◽  
Vol 49 (5) ◽  
pp. 509-515 ◽  
Author(s):  
Hye-Jung BAEK ◽  
Tae-Hyun KIM ◽  
Dongho SHIN ◽  
Jung-Won KWAK ◽  
Dong-Wan CHOO ◽  
...  
Keyword(s):  

2018 ◽  
Vol 56 ◽  
pp. 66-73
Author(s):  
Shunsuke Moriya ◽  
Hidenobu Tachibana ◽  
Kenji Hotta ◽  
Naoki Nakamura ◽  
Takeji Sakae ◽  
...  

2020 ◽  
Vol 189 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Serdar Charyyev ◽  
C-K Chris Wang

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.


2007 ◽  
Vol 34 (6Part12) ◽  
pp. 2468-2468
Author(s):  
S Park ◽  
D Shin ◽  
J Kwak ◽  
M Yoon ◽  
J Shin ◽  
...  

2011 ◽  
Vol 38 (6Part26) ◽  
pp. 3721-3721
Author(s):  
R A Hälg ◽  
J Besserer ◽  
S Mayer ◽  
U Schneider

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