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User name R. Lindgren
Log entry time 18:23:12 on February18,2007
Entry number 194042
keyword=Unresloved boron and carbon elastic peaks
The carbon target .0838 gm/cm2 is about 5 times thinner than the 10B4C target. This means the peak shape of the carbon elastic is quite different than the peak shape of the carbon elastic in the thick 10B4C target. Since the carbom elastic and the Boron elastic are unresolvable and within .8 MeV of each other at 51 degrees you cannot accurately separate them with out having a realistic carbon elastic peak shape. Perhaps, you could put in a thick carbon target and take a few angles of carbon data. You wouldn't have to take every angle - just enough to get the carbon elastic peak shape at selective angles and interpolate between angles. This is more important at the angles of 66.5 degrees and less because at more backward angles the B and C elastic are separated by more than 1.3 MeV and perhaps resolvable, but I haven't seen that data yet.