B3 Film Dosimeters
B3 Film Dosimeters
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Common Questions about B3 Dosimeters

QUESTION

ANSWER

The temperature of our dosimeter product (during shipping or in the pre-irradiation storage location) dropped below 15°C. Are the dosimeters damaged? What should I do?

The dosimeters are not damaged by temperature drops below normal storage conditions. Put the dosimeters in room temperature (see Storage Pre-irradiation Storage) and allow the dosimeters to acclimate before irradiation. Acclimation is necessary to restore the humidity levels in the pouches to normal. While we do not have specific information about your working conditions, we recommend an acclimation period of at least 24 hours.

The temperature of our dosimeter product (during shipping or in the pre-irradiation storage location) storage location went above 30°C. Are the dosimeters damaged? What should I do?

The dosimeters are not damaged by temperature above normal storage conditions.

Put the dosimeters in room temperature (see Storage Pre-irradiation Storage) and allow the dosimeters to acclimate before irradiation. Acclimation is necessary to restore the humidity levels in the pouches to normal. While we do not have specific information about your working conditions, we recommend an acclimation period of at least 24 hours.

The temperature of our dosimeter product (during shipping or in the pre-irradiation storage location) went above 45°C. Are the dosimeters damaged? What should I do?

The dosimeter response may be impacted by temperatures at or above ≥45°C, but you should test to ensure the product is not impacted by the heat excursion prior to usage.

  1. If a temperature of ≥45°C occurs, you should verify the response function of the product prior to usage and assess the suitability of any existing calibration function for the product. (For guidance, refer to ASTM 51275).

  1. If the verification of response test show that the B3 dosimeter product is impacted by temperatures at or above ≥45°C, you have two options:

    1. Calibrate the dosimeter stock using the in-plant method (ASTM 51261, Method 2). Calibration will mitigate any effect.

    2. Dispose of the impacted stock. Purchase new dosimeter stock.

I have a dosimeter measurement dose value that is not what I expected. How do I investigate?

See Troubleshoot B3 Dosimeter Measurements and Investigating Dosimeter Measurements

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