Before Using B3 Dosimeters

1

Understand B3 radiochromic film dosimeters.

Understand the factors (called ‘influence quantities’) other than absorbed dose which influence the dosimeter response. Examples of such factors are dose fractionation, dose rate, humidity and temperature during irradiation, etc.

Basics of B3 dosimetry

General Characteristics of B3 Film

2

Use case qualification - determine and implement the practices and procedures necessary between purchase and disposal of the product to control the performance within the quality limits required. Controls required vary by application. This should include mitigation actions for influence quantities (above) to ensure the product will perform within a normally expected range for the use cases to be encountered in the application.

Use Case Qualification

3

Establish a protocol for the purchase, receipt, acceptance and storage of dosimeters.

The user shall perform an incoming inspection and
acceptance testing for each shipment of dosimeters received.

B3 Dosimeter Product Stock Assessment

Storage of B3 dosimeter products

4

Qualification and Performance Verification of Dosimetry System

• Measurement Instruments (Spectrophotometer and dosimeter holder system)

• Heat Treatment Instruments (Incubators)

• Dosimeters

Qualification and Performance Verification of Dosimetry System

5

Dosimeter Batch Calibration (Dosimetry System Calibration) - Prior to initial use of each batch of dosimeters, the dosimetry system shall be calibrated in accordance with ASTM Practice 51261, and the user’s procedures, which specify details of the calibration and quality assurance requirements.

The user’s dosimetry system calibration shall take into
account the influence quantities applicable to the user’s process in the user’s facility.

Dosimetry System Calibration (Dosimeter Batch Calibration) - Complete overview, guidance

B3 Dosimeter Batch Calibration