From: Stefan Roesler (sroesler@mail.cern.ch)
Date: Wed Oct 31 2007 - 00:35:04 CET
Dear Joel,
Could you please explain what exactly you would like to score? I am not
sure that I understand what you mean by "charged fragmentation" (LET
spectra for different charges?)
If you post the input file I could have a look and test options.
Greetings
Stefan
On Mon, 29 Oct 2007, Joel DeWitt wrote:
> BlankThank you, Paola, for your timely and on-target reply.
>
> I've successfully scored LET and formed (sort of) a spectrum from this,
> but without any fragmentation. Using the card:
>
> * score the LET spectrum (in water) of charged particles
> USRYIELD 2323.0 ALL-CHAR -41.0 PE CR39 1.0Yield
> USRYIELD 200.0 0.0 200.0 200.0 0.0 2803.0&
>
> I recover the expected primary ionization peak at the correct location
> for a 1 GeV/n 56Fe beam. I've tried setting the second variable in the
> double differential to "particle charge" and played with the upper and
> lower limits without success. I must confess that I don't completely
> understand this method of obtaining an LET spectrum since our method is
> literally a histogram of binned LET. Curiously, when I do attempt
> "particle charge" as the second variable, I get empty bins. The reason
> for this is not immediately obvious to me. What would be the proper way
> to score charged fragmentation?
>
> Best regards,
> Joel DeWitt
> Eril Research, Inc.
>
>
>
-- ___________________________________ Stefan Roesler CERN, SC/RP CH-1211 Geneva 23 Switzerland Phone: +41-22-7679891 Fax: +41-22-7669639 E-mail: Stefan.Roesler@cern.ch
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