gamma spectrum from neutrons in B10

From: me@marychin.org
Date: Sat Oct 20 2007 - 16:25:50 CEST

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    Hi.

    I started thermal neutrons in boron-10, and looked at the energies of newly-created photons by:
          IF ( JTRACK .EQ. 8 .AND. Np .GT. 0) THEN
            IF ( Np .EQ. 1 .AND. Kpart(1) .EQ. 8 ) THEN
            ELSE
             DO I = 1, Np
               WRITE (IODRAW) ICODE, Np, SNGL (ETRACK), Kpart(I),
         & SNGL (Tki(I))
             END DO
            END IF
          END IF
     
    >From the photon spectrum I get:
    1. the prominent 0.477 MeV peak
    2. several bands (as expected from multigroup treatment) covering all 10 thermal neutron capture gammas for B10 (which I took from http://www.nndc.bnl.gov/capgam/byn/page006.html)
    3. one band 0.04012 to 0.9999 MeV

    Could some kindly help me explain the 3rd feature, ie the band between 0.04012 to 0.9999 MeV? I note that the manual says, "the gamma generation matrix does not include only capture gammas, but also gammas produced in other inelastic reactions such as (n,n')." but then whenever the feature took place the gamma seemed unaccompanied by another particle.

    Many thanks,
    mary

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