GEC-ESTRO ACROP recommendations on calibration and traceability of HE HDR-PDR photon-emitting brachytherapy sources at the hospital level

Radiother Oncol. 2022 Nov;176:108-117. doi: 10.1016/j.radonc.2022.09.012. Epub 2022 Sep 24.


The vast majority of radiotherapy departments in Europe using brachytherapy (BT) perform temporary implants of high- or pulsed-dose rate (HDR-PDR) sources with photon energies higher than 50 keV. Such techniques are successfully applied to diverse pathologies and clinical scenarios. These recommendations are the result of Working Package 21 (WP-21) initiated within the BRAchytherapy PHYsics Quality Assurance System (BRAPHYQS) GEC-ESTRO working group with a focus on HDR-PDR source calibration. They provide guidance on the calibration of such sources, including practical aspects and issues not specifically accounted for in well-accepted societal recommendations, complementing the BRAPHYQS WP-18 Report dedicated to low energy BT photon emitting sources (seeds). The aim of this report is to provide a European-wide standard in HDR-PDR BT source calibration at the hospital level to maintain high quality patient treatments.

Keywords: Brachytherapy; Calibration; Dosimetry; HDR-PDR; High energy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Brachytherapy* / methods
  • Calibration
  • Hospitals
  • Humans
  • Photons / therapeutic use
  • Radiotherapy Dosage