TY - JOUR
T1 - Report of AAPM Task Group 235 Radiochromic Film Dosimetry
T2 - An update to TG-55
AU - Niroomand-Rad, Azam
AU - Chiu-Tsao, Sou Tung
AU - Grams, Michael P.
AU - Lewis, David F.
AU - Soares, Christopher G.
AU - Van Battum, Leo J.
AU - Das, Indra J.
AU - Trichter, Samuel
AU - Kissick, Michael W.
AU - Massillon-JL, Guerda
AU - Alvarez, Paola E.
AU - Chan, Maria F.
PY - 2020/12
Y1 - 2020/12
N2 - The use of radiochromic film (RCF) dosimetry in radiation therapy is extensive due to its high level of achievable accuracy for a wide range of dose values and its suitability under a variety of measurement conditions. However, since the publication of the 1998 AAPM Task Group 55, Report No. 63 on RCF dosimetry, the chemistry, composition, and readout systems for RCFs have evolved steadily. There are several challenges in using the new RCFs, readout systems and validation of the results depending on their applications. Accurate RCF dosimetry requires understanding of RCF selection, handling and calibration methods, calibration curves, dose conversion methods, correction methodologies as well as selection, operation and quality assurance (QA) programs of the readout systems. Acquiring this level of knowledge is not straight forward, even for some experienced users. This Task Group report addresses these issues and provides a basic understanding of available RCF models, dosimetric characteristics and properties, advantages and limitations, configurations, and overall elemental compositions of the RCFs that have changed over the past 20 yr. In addition, this report provides specific guidelines for data processing and analysis schemes and correction methodologies for clinical applications in radiation therapy.
AB - The use of radiochromic film (RCF) dosimetry in radiation therapy is extensive due to its high level of achievable accuracy for a wide range of dose values and its suitability under a variety of measurement conditions. However, since the publication of the 1998 AAPM Task Group 55, Report No. 63 on RCF dosimetry, the chemistry, composition, and readout systems for RCFs have evolved steadily. There are several challenges in using the new RCFs, readout systems and validation of the results depending on their applications. Accurate RCF dosimetry requires understanding of RCF selection, handling and calibration methods, calibration curves, dose conversion methods, correction methodologies as well as selection, operation and quality assurance (QA) programs of the readout systems. Acquiring this level of knowledge is not straight forward, even for some experienced users. This Task Group report addresses these issues and provides a basic understanding of available RCF models, dosimetric characteristics and properties, advantages and limitations, configurations, and overall elemental compositions of the RCFs that have changed over the past 20 yr. In addition, this report provides specific guidelines for data processing and analysis schemes and correction methodologies for clinical applications in radiation therapy.
KW - film and scanner selections
KW - quality assurance
KW - radiochromic film dosimetry
KW - special clinical applications
UR - http://www.scopus.com/inward/record.url?scp=85094950032&partnerID=8YFLogxK
U2 - https://doi.org/10.1002/mp.14497
DO - https://doi.org/10.1002/mp.14497
M3 - Article
C2 - 32990328
SN - 0094-2405
VL - 47
SP - 5986
EP - 6025
JO - Medical physics
JF - Medical physics
IS - 12
ER -