 Wed Jul 29 14:09:40 2020, RG, Activation calculations sheet 
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| Google sheet with activation calculations: https://docs.google.com/spreadsheets/d/1fqBw-iCkZ_v45S6PhKZxoU0qtBy8W_HfurwcGsZw_c4/edit?usp=sharing |
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Wed Jul 29 13:05:10 2020, RG, High purity hafnium foil documents
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Tue Jul 28 21:56:03 2020, RG, Gamma spectra
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Gamma-spectra recorded on 03/06/2019, 24/06/2019, and 05/08/2019 analysed for identifyiing isotopes produced and estimating their activities. The spectra
are shown in attached pictures with the identified peaks labelled.
Ta179 activity given here was calculated by analysing the 61 keV peak assuming that this peak would be dominated by X-rays from Hf175 |
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Tue Jul 28 14:29:53 2020, RG, Proton irradiation summary
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Proton beam - 27 MeV, 32 uA current, ~7 hrs. Total protons = 5.04E+18.
Sample - 15 mm diameter, 1mm thick natural Hf foil. Hf+Zr>99.93% and Zr content <0.5%. Impurities in the sample listed in the attached document.
Sample holder: Simple foil holder which sandwiches the foil between two sheets. The front sheet has a hole for the incident beam. The |