National Physical Laboratory

HDR and LDR brachytherapy

Calibration Service for 192Ir High Dose Rate (HDR) Brachytherapy Dosemeters

Brachytherapy - Well Chambers
Well chambers

NPL's 192Ir HDR brachytherapy calibration service is for ionisation chambers used as secondary standards or instruments required for measurement of the greatest accuracy. Calibration of either an ionisation chamber alone or of a complete system including an electrometer is available.

Service Features

  • Calibration directly against the NPL air kerma primary standard
  • Reference air kerma rate (RAKR) of the 192Ir source up to 50 mGy/h

Specification and Availability

Brachytherapy - Calibration Jig
Thimble chamber calibration jig
  • Calibration of well-type (re-entrant) chambers suitable for HDR sources
  • Calibration of thimble chambers with customer provided calibration jig
  • Electrometer calibration (charge or current calibration)
  • Calibrations are normally carried out in spring, and are undertaken using an HDR 192Ir Isodose Control Flexisource
  • Calibration conforms to IPEM Code of Practice (2010)

For more information, please contact Thorsten Sander or our Radiation Dosimetry team


Customer Services tel: +44 20 8943 8695

Last Updated: 11 Dec 2017
Created: 17 Apr 2007


Please note that the information will not be divulged to third parties, or used without your permission