Difference between revisions of "PAA Bibliography"
Jump to navigation
Jump to search
| Line 18: | Line 18: | ||
| − | If Pt-196 is in an excited state, then there are two lifetimes to de-excite of 8.1 seconds and 9.6 hours | + | If Pt-196 is in an excited state, then there are two lifetimes to de-excite of 8.1 seconds and 9.6 hours . For the 9.6 hours state then dominant intensities are a photon emission energies of 188.27 and 147.81 keV. |
====Proton Knockout==== | ====Proton Knockout==== | ||
Revision as of 22:24, 6 May 2013
NAA
Ancient Silver
File:Meyers Zelst Sayre BNL-21513.pdf This paper suggest that the gold and iridium content can be used to distinguish between Sasanian (Iran) coins and other silver coins.
Activating gold
Neutron knock out
Au-196 decays with a half life 6.183 days of by electron capture to Pt-196 92% of the time or the rest of the time it Beta decay to Hg-196
The highest relative intensity gamma ray has an energy of 333.03 keV after Au-196 undergoes electron capture. Pt-196 is stable.
If Pt-196 is in an excited state, then there are two lifetimes to de-excite of 8.1 seconds and 9.6 hours . For the 9.6 hours state then dominant intensities are a photon emission energies of 188.27 and 147.81 keV.
Proton Knockout
[PAA_Research]