Setup is Amptek 1-2-3 SDD Sensor/MCA,?
the X-Ray tube excited ones were with a LIXI-Kevex microfocus
low power X-Ray tube, parameters listed in the scans.
Current? settings are always in microamps not milliamaps.
kVp= peak voltage of Bremsstahlung X-Ray, always below the tungsten target K edge.
Isotope excited ones are with an Am X 8 ring, various attack angles, 90/45/22.5 degrees and those parameters will be listed.
US Steel cent, showing Fe core and Zn plating.
SIlver "War Nickel":
Have fun
Geo
