[Intl_DxMedPhys] Gafchromic film

[Nicole Ranger]

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Good morning list,

I’ve used Gafchromic film extensively in the past in a dosimetry context where cumulative exposure during storage was important but for the Gafchromic that you use for imaging QC purposes (CT, Mammo, etc…) where the baseline exposure is less important so long as there is adequate contrast, what would you consider to be a useful timeframe before the film is less useful?  Just wondering if there is any downside when buying a box. We have relatively fewer devices here than I have had to support in the past so I’m not sure how quickly I will go through this stuff.

TIA 
Nicole


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