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Dose rate dependency of micelle leucodye 3D gel dosimeters

Jan Vandecasteele UGent, Sara Ghysel UGent and Yves De Deene UGent (2010) JOURNAL OF PHYSICS CONFERENCE SERIES. 250(1).
abstract
Recently a novel 3D radiochromic gel dosimeter was introduced which uses micelles to dissolve a leucodye in a gelatin matrix. Experimental results show that this 3D micelle gel dosimeter was found to be dose rate dependent. A maximum difference in optical dose sensitivity of 70% was found for dose rates between 50 cGy min−1 and 400 cGy min−1. A novel composition of 3D radiochromic dosimeter is proposed composed of gelatin, sodium dodecyl sulphate, chloroform, trichloroacetic acid and leucomalachite green. The novel gel dosimeter formulation exhibits comparable radio-physical properties in respect to the composition previously proposed. Nevertheless, the novel formulation was found to be still dose rate dependent. A maximum difference of 33% was found for dose rates between 50 cGy min−1 and 400 cGy min−1. On the basis of these experimental results it is concluded that the leucodye micelle gel dosimeter is still unsatisfactory for clinical radiation therapy dose verifications. Some insights in the physico-chemical mechanisms were obtained and are discussed.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Radiation dosimetry, 3D Dosimetry, Gel Dosimetry, Optical CT, Leucodye chemistry
in
JOURNAL OF PHYSICS CONFERENCE SERIES
J. Phys. Conf. Ser.
volume
250
issue
1
issue title
IC3DDose : the 6th international conference on 3D radiation dosimetry
article_number
012009
pages
5 pages
publisher
IOP Publishing
place of publication
Bristol, UK
conference name
6th International conference on 3D Radiation Dosimetry
conference location
Hilton Head Island, SC, USA
conference start
2010-08-22
conference end
2010-08-26
ISSN
1742-6588
DOI
10.1088/1742-6596/250/1/012009
project
IWT
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1085252
handle
http://hdl.handle.net/1854/LU-1085252
date created
2010-12-08 16:30:14
date last changed
2010-12-09 09:10:26
@inproceedings{1085252,
  abstract     = {Recently a novel 3D radiochromic gel dosimeter was introduced which uses micelles to dissolve a leucodye in a gelatin matrix. Experimental results show that this 3D micelle gel dosimeter was found to be dose rate dependent. A maximum difference in optical dose sensitivity of 70\% was found for dose rates between 50 cGy min\ensuremath{-}1 and 400 cGy min\ensuremath{-}1. A novel composition of 3D radiochromic dosimeter is proposed composed of gelatin, sodium dodecyl sulphate, chloroform, trichloroacetic acid and leucomalachite green. The novel gel dosimeter formulation exhibits comparable radio-physical properties in respect to the composition previously proposed. Nevertheless, the novel formulation was found to be still dose rate dependent. A maximum difference of 33\% was found for dose rates between 50 cGy min\ensuremath{-}1 and 400 cGy min\ensuremath{-}1. On the basis of these experimental results it is concluded that the leucodye micelle gel dosimeter is still unsatisfactory for clinical radiation therapy dose verifications. Some insights in the physico-chemical mechanisms were obtained and are discussed.},
  articleno    = {012009},
  author       = {Vandecasteele, Jan and Ghysel, Sara and De Deene, Yves},
  booktitle    = {JOURNAL OF PHYSICS CONFERENCE SERIES},
  issn         = {1742-6588},
  keyword      = {Radiation dosimetry,3D Dosimetry,Gel Dosimetry,Optical CT,Leucodye chemistry},
  language     = {eng},
  location     = {Hilton Head Island, SC, USA},
  number       = {1},
  pages        = {5},
  publisher    = {IOP Publishing},
  title        = {Dose rate dependency of micelle leucodye 3D gel dosimeters},
  url          = {http://dx.doi.org/10.1088/1742-6596/250/1/012009},
  volume       = {250},
  year         = {2010},
}

Chicago
Vandecasteele, Jan, Sara Ghysel, and Yves De Deene. 2010. “Dose Rate Dependency of Micelle Leucodye 3D Gel Dosimeters.” In Journal of Physics Conference Series. Vol. 250. Bristol, UK: IOP Publishing.
APA
Vandecasteele, J., Ghysel, S., & De Deene, Y. (2010). Dose rate dependency of micelle leucodye 3D gel dosimeters. JOURNAL OF PHYSICS CONFERENCE SERIES (Vol. 250). Presented at the 6th International conference on 3D Radiation Dosimetry, Bristol, UK: IOP Publishing.
Vancouver
1.
Vandecasteele J, Ghysel S, De Deene Y. Dose rate dependency of micelle leucodye 3D gel dosimeters. JOURNAL OF PHYSICS CONFERENCE SERIES. Bristol, UK: IOP Publishing; 2010.
MLA
Vandecasteele, Jan, Sara Ghysel, and Yves De Deene. “Dose Rate Dependency of Micelle Leucodye 3D Gel Dosimeters.” Journal of Physics Conference Series. Vol. 250. Bristol, UK: IOP Publishing, 2010. Print.