Abstract
At the Idaho Accelerator Center, we employed a pulsed bremsstrahlung photon beam generated from the 44-MeV, 1300MHz L-band electron Linac which was then directed onto a 99.9% natural magnesium target (isotopically 10% 25Mg). We investigated a method of measuring the 20.2ms half life of the photoproduced 24mNa isomer created in the process: γ+25Mg→p+24mNa. The telltale 472-keV gamma line was measured between the photon pulses with an HPGe detector shielded within a lead cave. We used an ion chamber for monitoring the photon beam and used a novel arrangement of Zr/Ni foils for ascertaining the angular distribution of the beam profile. We discuss our preliminary results and future plans for extracting photonuclear cross sections.
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