Photoactivation at a clinical LINAC: The 197Au(gamma,n)196Au reaction slightly above threshold

Abstract

The properties of a clinical LINAC are investigated for a study of photoactivation cross sections slightly above the neutron threshold. As an example, the photoactivation of a tiny amount of gold by the 197Au(gamma,n)196Au reaction has been measured. The derived photon intensity is at least comparable to conventional and widely used photon sources. In combination with its extremely stable operation, a clinical LINAC ensures that photoactivation studies can be performed for a wide number of targets with very limited beamtime.

arXiv comment18 pages, 6 figures, Nucl. Inst. Meth. Phys. Res. A

References in corpus (11)

• Nucleosynthesis in Massive Stars With Improved Nuclear and Stellar Physics
• Experimental simulation of a stellar photon bath by bremsstrahlung: the astrophysical $\gamma$-process
• Evidence for nucleosynthesis in supernova $\gamma$-process: Universal scaling on p-nuclei
• Measurement of the (gamma,n) reaction rates of the nuclides 190Pt, 192Pt, and 198Pt in the astrophysical gamma-process
• Direct determination of photodisintegration cross sections and the p-process
• Photo-disintegration cross section measurements on ${}^{186}$W, ${}^{187}$Re and ${}^{188}$Os: Implications for the Re-Os cosmochronology
• Photon-induced Nucleosynthesis: Current Problems and Experimental Approaches
• s-process branching at 185W revised
• Systematic study of (g,n) reaction rates for Z>=78 isotopes
• Photodissociation of p-process nuclei studied by bremsstrahlung induced activation
• ${}^{187}$Re(\gamm,n) cross section close to and above the neutron threshold

Cited by in corpus (4)

• Photoactivation experiment on 197Au and its implications for the dipole strength in heavy nuclei
• Properties of the 5- state at 839 keV in 176Lu and the s-process branching at A = 176
• Photonuclear reactions with Zinc: A case for clinical linacs
• High precision measurements of half-lives for 69Ge, 73Se, 83Sr, 85mSr, and 63Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory