Technical note: Dosimetric study of a new Co‐60 source used in brachytherapy

Abstract

The purpose of this study is to obtain the dosimetric parameters of a new Co-60 source used in high dose rate brachytherapy and manufactured by BEBIG ͑Eckert & Ziegler BEBIG GmbH, Germany͒. The Monte Carlo method has been used to obtain the dose rate distribution in the updated TG-43U1 formalism of the American Association of Physicists in Medicine. In addition, to aid the quality control process on treatment planning systems ͑TPS͒, a two-dimensional rectangular dose rate table, coherent with the TG-43U1 dose calculation formalism, is given. These dosimetric data sets can be used as input data of the TPS calculations and to validate them.

Study of the dosimetric differences between 192Ir and 60Co sources of high dose rate brachytherapy for breast interstitial implant

“…The 192 Ir Gammamed HDR plus source listed in the source library was used. Bebig 60 Co source was modelled using the data input from Granero et al 6 The different parameters between 192 Ir and 60 Co are listed in Table 1.…”

“…The smaller size of the source allowed interstitial treatment and optimization of dose. 5 The dosimetric data sets provided by Granero et al 6 are used as input to validate treatment planning system calculation using 60 Co. The dose deposition differences around single 60 Co and 192 Ir sources (anisotropy, radial dose function and relative isodose curves) have been reviewed by Strohmaier 5 who found no advantage or disadvantage for 60 Co sources compared to 192 Ir.…”

Monte Carlo‐based beam quality and phantom scatter corrections for solid‐state detectors in and brachytherapy dosimetry

“…The brachytherapy sources investigated in this study are BEBIG HDR ${}^{60}\text{Co}$ (model Co0.A86; Eckert & Zielger BEBIG BmbH, Berlin, Germany) (3) and HDR ${}^{192}\text{Ir}$ (model MicroSelectron; Elekta, Stockholm, Sweden) (2) . In the Monte Carlo calculations, two gamma lines 1.17 MeV and 1.33 MeV are considered for the ${}^{60}\text{Co}$ source.…”

“…${}^{192}\text{Ir}$ and ${}^{60}\text{Co}$ sources are used in high‐dose‐rate (HDR) brachytherapy 1 , 2 , 3 , 4 . Dosimetry of a brachytherapy source is generally carried out using various solid‐state detectors.…”

Comparison of Axxent-Xoft,192Ir and60Co high-dose-rate brachytherapy sources for image-guided brachytherapy treatment planning for cervical cancer

“…We also had commissioned the Xoft-EBS as well as the BeBig TM 60 Co HDR source manufactured by Eckert & Ziegler into the Varian BrachyVision treatment planning system using AAPM-TG43 format for the two sources. [12][13][14] For the work reported in this article, we entered the American Association of Physicists in Medicine Task Group 43 data into the planning system and did a hand calculation of the dose predictions at several points for both the 60 Co and the Xoft-EBS sources. During the clinical commissioning of the Xoft-EBS source in the planning system, we did extensive measurements in manufacturer supplied phantoms and compared the dose prediction using the radiochromic film.…”