Dosimeter Batch Calibration Services
Formalized, complete, turnkey dosimeter batch calibration services for a wide range of applications. GEX calibration services conform to current recommended calibration methods published in industry standards, guides and practices.
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GEX Laboratory can provide customers with certified traceable national standard transfer alanine dosimeter doses for a 0.25 kGy to 100.0 kGy dose range, traceable to NPL.
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GEX can assist you with a variety of calibration lab services, and can coordinate with any laboratory worldwide.
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Dosimeter Batch Calibration Services
What is dosimetry system batch calibration, and why is this necessary?
Dosimetry batch calibration is the process where the response of a dosimetry system is characterized through comparison with a traceable reference (standard). The calibration method for the dosimetry system is designed to ensure the integrity of the measurements made with the user’s dosimetry system.
Dosimetry systems must be calibrated for each batch of dosimeters. In addition, a separate calibration is required for each measurement instrument.
All dosimetry systems must be calibrated traceable to a national or international standard. Dosimeter manufacturers may provide response functions on their websites or in product literature, but these are for general information only. Therefore, the end-user must calibrate the measurement system as a whole (the dosimetry system) and ensure that the calibration is suitable for the conditions of use.
Routine dosimetry systems should be calibrated in accordance with the requirements of ISO/ASTM 51261. Reference dosimetry systems should be calibrated in a manner to meet the requirements of ISO 17025.
ISO/ASTM Methods
GEX uses formalized calibration procedures to assure highly reproducible results from calibration to calibration. We perform dozens of calibrations and fit hundreds of calibration curves each year. Our full turnkey calibration service package allows a user to follow either of the two ISO/ASTM 51261 currently recommended calibration methods.
- Laboratory calibration performed at a certified high dose calibration laboratory with in-situ (in-plant) calibration verification.
- Full in-plant calibration using reference transfer standard dosimeters.
GEX calibration services conform to current recommended calibration methods published in industry standards, guides and practices. Includes:
- Standardized protocols with formal procedures
- Dose traceability to national standards
- Standard calibration phantom holders
- In-stock reference transfer standard alanine dosimeters
- Validated software designed specifically for calibration applications
- Calibration specialty products
- Calibration specific automated dosimetry software
- Expert consulting
description Product Information Sheet PDF
GEX Laboratory Transfer-Standard Dosimeter Service
GEX Laboratory provides customers with certified and traceable high dose measurements using alanine pellet dosimeters. Customers use our transfer-standard dosimeter service to calibrate their dosimetry systems by irradiation of GEX's dosimeters at their irradiation facility alongside their dosimeters. Our certified dose measurements are also useful for establishing dose rate(s) for, or mapping of, radiation fields produced by gamma ray, X-ray or electron beam sources.
Accreditation
GEX is accredited by NVLAP to ISO/IEC 17025:2017 to provide alanine pellet dose measurements for ionizing radiation in the range 0.25 kGy to 100.0 kGy. The scope of our accreditation covers many but not all source energies that are commonly used for irradiating high doses.
Accreditation documents:
- description Scope of Accreditation PDF file
- description Accreditation Certificate PDF file
- Or visit NIST website and type NVLAP Lab Code "600080-0" into search.
Go to NIST Website...
Other Calibration Laboratory Services
We can coordinate with any international standards laboratory:
- GEX Laboratory
- NPL - National Physical Laboratory - England
- NIST - National Institutes of Science and Technology - Washington DC
- MDS Nordion - Canada
- Risø National Laboratory - Denmark
Services offered...
- S1000 Alanine Pellet Transfer Dosimeters for In-Plant Calibration
- S1000L Alanine Film Transfer Dosimeters of for In-Plant Calibration (for low energy applications)
- S1001 Calibration Laboratory Gamma Dose Point
- S1002 10MeV Electron Beam Calibration Dose Point