Dose Course 2018_Flipping book
Radiochromic film evolution…
POST EBT GAFCHROMIC FILMS (2004) [EBT;EBT2;EBT3]
PRIOR EBT GAFCHROMIC FILMS [HD-810; MD-55-2; HS]
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Low sensitivity
Dose range 2cGy – 8 Gy
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Small size
Saturation ~ 10Gy (15Gy)
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❑ Inherent optical density non-uniformity in one sheet (15%) [Need of double-exposure]
Different sizes available
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Z eff ~ 7.05 (chlorine addition)
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Significant better homogeneity
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High price
[no need of double-exposure techniques]
Lower price
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