| Title |
A Monochromatic Gamma Source without Neutrons |
| Authors |
- R.W. Garnett, S.S. Kurennoy, L. Rybarcyk, T.N. Taddeucci
LANL, Los Alamos, New Mexico, USA
|
| Abstract |
High-energy gamma rays can be efficiently produced using the direct excitation of the 15.1-MeV level in 12C via the (p, p’) reaction. This reaction has the threshold energy of 16.38 MeV. The threshold for neutron production via 12C (p, n) is 19.66 MeV, so there is an energy window of 3.28 MeV where the 15.1-MeV photons can be produced without any direct neutrons. Thick-target yield estimates indicate that just below the neutron production threshold, the photon output is about twice that of the more well-known 11B (d, n) reaction requiring 4-MeV deuterons, with the expected 15.1-MeV photon flux to be approximately 10¹¹ s⁻¹ sr⁻¹ per 1 mA of 19.6-MeV proton current on a carbon target. A compact pulsed proton accelerator capable of 10-mA or greater peak currents to drive such a gamma source will be presented. The accelerator concept is based on a 4-rod RFQ followed by compact H-mode structures with PMQ focusing.
|
| Funding |
This work is supported by the U. S. Department of Energy Contract DE-AC52-06NA25396. |
| Paper |
download TUPWI026.PDF [0.421 MB / 3 pages] |
| Export |
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| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Tuesday Posters (Wilson) |
| Date |
05-May-15 16:00–18:00 |
| Main Classification |
8: Applications of Accelerators, Tech Transfer, and Industrial Relations |
| Sub Classification |
U04 - Security |
| Keywords |
neutron, photon, proton, rfq, DTL |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
