RE: Photon fluence suppression by Boron

From: Fasso, Alberto <fasso_at_slac.stanford.edu>
Date: Sat, 18 May 2013 05:35:19 -0700

It is not gamma capture by boron. Boron absorbs thermal neutrons that otherwise would have been captured by hydrogen, emitting gammas.

Alberto
________________________________________
From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] On Behalf Of saneesh_at_iuac.res.in [saneesh_at_iuac.res.in]
Sent: Saturday, May 18, 2013 3:07 AM
To: fluka-discuss_at_fluka.org
Subject: Photon fluence suppression by Boron

Dear fluka experts,
          I am using fluka for designing a beam dump structure for stopping
secondary neutrons and gammas. I have used a mixture of paraffin
wax and boric acid as the material. There I found that the
addition of Boron into the paraffin wax reduces the secondary
gamma fluence drastically. I could not find a justification for
this gamma capture property of boron. I am attaching both the
input files and 2D spectra along with this mail. please help me to
resolve this problem.

Thanks and regards

Saneesh N
Received on Sat May 18 2013 - 15:59:49 CEST

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