From: Markus Brugger (Markus.Brugger@cern.ch)
Date: Sun Nov 18 2007 - 10:45:51 CET
yes, negative decay times allow you scoring isotope production or
residual dose rates *during* the specified irradiation profile. To give
you an example:
- you have an irradiation period lasting over several years with
shutdown periods in-between (the shutdown periods are indicated with '0'
intensity in your IRRPROFI card)
- you would like to score residual dose rates for the following cooling
+ 1 day after the first shutdown
+ 1 month after the first shutdown
+ 1 day after the second (final) shutdown
+ 1 month after the second (final) shutdown
+ 4 months after the second (final) shutdown
+ 1 year after the second (final) shutdown
In this case the first two cooling times would be negative as they occur
during your irradiation period and as you assumed correctly, t=0 refers
to the end of IRRPROFI.
[mailto:email@example.com] On Behalf Of Markus Kirk
Sent: Friday, November 16, 2007 3:42 PM
Hello dear Users,
Can anyone tell me exactly what the definition of a negative
cooling time is?
My guess is that all times specified in the DCYTIMES card be
they -ve or +ve are relative to t=0
Where t=0 is the end of the IRRIPROFI.
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