radiation damage

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richsaxs
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radiation damage

#1 Post by richsaxs » 2009.07.16 03:57

hi
i have 2 saxs curves collected at short (blue) and long (red) exposure times. they seem to be a bit different at 0.05 < s < 0.1. is this a reflection of radiation damage? can i tell whether the sample is damaged if i did not record a short exposure time after the long exposure time.
many thanks
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AL
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radiation damage

#2 Post by AL » 2009.07.16 11:43

Normally the radiation damage check is done by exposing the same sample (without reloading) twice (or more) with the same exposure time. If such two unsubtracted curves look systematically different - radiation damage is present.

In your case you had five other runs between kirprot_401.dat and kirprot_407.dat. You compare subtracted curves - probably different buffers were used for that. So the curves do look different but one can not say for sure if it is radiation damage or something else.

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