scholarly journals Design of a focused collimator for proton therapy spot scanning using Monte Carlo methods

2020 ◽  
Vol 47 (7) ◽  
pp. 2725-2734
Author(s):  
Theodore J. Geoghegan ◽  
Nicholas P. Nelson ◽  
Ryan T. Flynn ◽  
Patrick M. Hill ◽  
Suresh Rana ◽  
...  
2020 ◽  
Vol 152 ◽  
pp. S752-S753
Author(s):  
J. Gajewski ◽  
A. Schiavi ◽  
N. Krah ◽  
V. Patera ◽  
G. Vilches-Freixas ◽  
...  

2019 ◽  
Vol 46 (10) ◽  
pp. 4676-4684 ◽  
Author(s):  
Kevin Souris ◽  
Ana Barragan Montero ◽  
Guillaume Janssens ◽  
Dario Di Perri ◽  
Edmond Sterpin ◽  
...  

2016 ◽  
Vol 119 ◽  
pp. S735
Author(s):  
J. Richardson ◽  
A. Aitkenhead ◽  
T. Lomax ◽  
S. Safai ◽  
F. Albertini ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marios Sotiropoulos ◽  
Yolanda Prezado

AbstractIn proton minibeam radiation therapy, proton minibeams are typically produced by modulating a uniform field using a multislit collimator. Multislit collimators produce minibeams of fixed length and width, and a new collimator has to be manufactured each time a new minibeam array is required, limiting its flexibility. In this work, we propose a scanning dynamic collimator for the generation of proton minibeams arrays. The new collimator system proposed is able to produce any minibeam required on an on-line basis by modulating the pencil beam spots of modern proton therapy machines, rather than a uniform field. The new collimator is evaluated through Monte Carlo simulations and the produced proton minibeams are compared with that of a multislit collimator. Furthermore, a proof of concept experiment is conducted to demonstrate the feasibility of producing a minibeam array by repositioning (i.e. scanning) a collimator. It is concluded that besides the technical challenges, the new collimator design is producing equivalent minibeam arrays to the multislit collimator, whilst is flexible to produce any minibeam array desired.


2015 ◽  
Vol 42 (6Part12) ◽  
pp. 3341-3341
Author(s):  
C Xie ◽  
H Lin ◽  
J Jing ◽  
C Chen ◽  
R Cao ◽  
...  

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