Larry%20McIntyre%20University%20of%20Arizona%20Haeberli%20student%201960-1964

1
Larry McIntyreUniversity of ArizonaHaeberli
student 1960-1964

• Haeberli-fest June 10, 2005

Using nuclear physics techniques for materials
analysis
2
University of Arizona CN Van de GraaffInstalled
1966-67
3
The tank
The bending magnet
4
Rutherford Backscattering Through the
years (Arizona 1983-2000)
5
Areal density (atoms/cm2) accuracy
4 Stoichiometry accuracy lt 1
6
Multilayer thin film sample advantage of high
energy
incident alpha particles
Tb
Fe
7
Tb
Fe
8
John Camerons resonanceelastic scattering of
alphas from 16O
9
Using the (a,p) nuclear reaction to determine
boron in a thin film
Reaction proton spectrum
Elastic scattering spectrum
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
Compare 340 keV (p,gamma) with 2313 keV
(alpha,p)for depth profiling F
15
(No Transcript)