1 - About
B3 dosimeters absorbed dose measurements are made using a dosimeter measurement system (also called a ‘dosimetry system’) (per ISO 10012 Measurement Management System, ASTM 52628 Standard Practice for Dosimetry in Radiation Processing).
The ‘B3 dosimetry system’ is a measurement system, and is comprised of B3 dosimeters, a reader to measure the dosimeter’s absorbance value, dosimeter holders to hold the dosimeter in place for measurement, a heat-treatment device (incubator), a method or software to calculate Dose, and the dosimeter measurement system procedures and processes.
2 - Components of a B3 Dosimeter Measurement System
ITEM
|
PURPOSE
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DETAILS
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|---|---|---|
|
Dosimeters |
Absorbed dose measurements in ionizing radiation processes |
For dose measurements traceable to a national standard, identify and record the dosimeter Batch ID. Identify and record the individual dosimeter serial number. |
|
Dosimeter holder(s) |
Orients dosimeters consistently inside the Reader. |
Use GEX dosimeter holders specifically designed for B3 dosimeters and provide consistent, repeatable dosimeter measurements. |
|
Reader |
Measures response of dosimeters |
Use the spectrophotometers provided by GEX, as part of the GEX DoseControl Dosimetry System. Use a high-quality flatbed scanner with the RisøScan Dosimetry System |
|
Heat treatment device |
Incubator used for the heat treatment of B3 dosimeters after irradiation |
Use the incubator devices provided by GEX. |
|
Dosimetry software (optional) |
Calculates a dose value from the measured response value captured from the Reader. Controls the Reader and captures measurement result the dosimeters. |
Use GEX DoseControl® software to create and maintain FDA 21 CFR Part 11 compliant dosimetry records, or other dosimetry software designed for the purpose of calculating dose. |
|
Dosimetry procedures |
A dosimetry system is a measurement system and must be implemented, used and maintained to ensure measurement results are accurate and legitimate, per ASTM 52628.
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Users must establish dosimetry system procedures prior to using B3 dosimeters. Procedures are specific to the user’s dosimetry application and irradiation process. See Before Using B3 Dosimeters Procedures may include:
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3 - GEX Dosimetry Systems
GEX offers out-of-the-box dosimetry systems ideal for B3 dosimetry, and designed to meet current industry standards and guidance. See ‘Dosimetry Systems’ on our website.
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