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Verification of a dynamic wedge implementation in a pencil beam based dose planning system

Weber, Lars LU ; Nilsson, Per LU ; Knöös, Tommy LU and Ahnesjö, Anders (1995) In Radiotherapy and Oncology 37(Suppl. 1). p.26-26
Abstract
The use of dynamic movements on linear accelerators during irradiation have found a revised interest lately due to the integration of computers to control the linear accelerator. An example of this is the generation of fields that resemble ordinary wedge fields. These fields are produced by moving one of the collimator blocks during irradiation, i. e. dynamic wedges.A pencil beam based system with the possibility of modelling dynamically modulated dose distributions from collimator movement specifications has extensively been investigated. Special interest has been focused on depth doses, profiles and output factors which have been generated by dynamic wedge fields. The data from the treatment planning system has been verified with... (More)
The use of dynamic movements on linear accelerators during irradiation have found a revised interest lately due to the integration of computers to control the linear accelerator. An example of this is the generation of fields that resemble ordinary wedge fields. These fields are produced by moving one of the collimator blocks during irradiation, i. e. dynamic wedges.A pencil beam based system with the possibility of modelling dynamically modulated dose distributions from collimator movement specifications has extensively been investigated. Special interest has been focused on depth doses, profiles and output factors which have been generated by dynamic wedge fields. The data from the treatment planning system has been verified with measurements in water on a Varian 4 MV linear accelerator.The results indicate that calculations accurately predicts the outcome from dynamic wedges without any additional measurements than those used for characterisation of static open beams. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Radiotherapy and Oncology
volume
37
issue
Suppl. 1
pages
26 - 26
publisher
Elsevier
ISSN
1879-0887
DOI
10.1016/0167-8140(96)80532-9
language
English
LU publication?
yes
id
7b821f9e-d6d6-47a0-9069-e503189633c1 (old id 1109822)
date added to LUP
2008-07-29 16:08:39
date last changed
2016-04-15 19:58:13
@article{7b821f9e-d6d6-47a0-9069-e503189633c1,
  abstract     = {The use of dynamic movements on linear accelerators during irradiation have found a revised interest lately due to the integration of computers to control the linear accelerator. An example of this is the generation of fields that resemble ordinary wedge fields. These fields are produced by moving one of the collimator blocks during irradiation, i. e. dynamic wedges.A pencil beam based system with the possibility of modelling dynamically modulated dose distributions from collimator movement specifications has extensively been investigated. Special interest has been focused on depth doses, profiles and output factors which have been generated by dynamic wedge fields. The data from the treatment planning system has been verified with measurements in water on a Varian 4 MV linear accelerator.The results indicate that calculations accurately predicts the outcome from dynamic wedges without any additional measurements than those used for characterisation of static open beams.},
  author       = {Weber, Lars and Nilsson, Per and Knöös, Tommy and Ahnesjö, Anders},
  issn         = {1879-0887},
  language     = {eng},
  number       = {Suppl. 1},
  pages        = {26--26},
  publisher    = {Elsevier},
  series       = {Radiotherapy and Oncology},
  title        = {Verification of a dynamic wedge implementation in a pencil beam based dose planning system},
  url          = {http://dx.doi.org/10.1016/0167-8140(96)80532-9},
  volume       = {37},
  year         = {1995},
}