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MOCOYBS04 | Electrodisintegration of 16O and the Rate Determination of the Radiative Alpha Capture on 12C at Stellar Energies | electron, experiment, multipole, target | 18 |
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Funding: This research is supported by the U.S. Department of Energy Office of Nuclear Physics (Grant No. DE-FG02-94ER40818) For over five decades one of the most important goals of experimental nuclear astrophysics has been to reduce the uncertainty in the S-factor of radiative alpha capture on 12C at stellar energies. We have developed a simple model, which relates the radiative capture reaction and the exclusive electrodisintegration reaction. We then show that by measuring the rate of electrodisintegration of 16O in a high luminosity experiment using a state-of-the-art gas target and a new generation of energy-recovery linear (ERL) electron accelerators under development, it is possible to significantly improve the statistical uncertainty of the radiative alpha capture on 12C in terms of E1 and E2 S-factors in the astrophysically interesting region, which are the key inputs for any nucleosynthesis and stellar evolution models. The model needs to be validated experimentally, but, if successful, it can be used to improve the precision of other astrophysically-relevant, radiative capture reactions, thus opening a significant avenue of research that spans nuclear structure, astrophysics and high-power accelerator technology. |
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Slides MOCOYBS04 [4.003 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-MOCOYBS04 | ||
About • | paper received ※ 15 September 2019 paper accepted ※ 04 November 2019 issue date ※ 24 June 2020 | ||
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WEPNEC11 | X-Ray ICS Source Based on Modified Push-Pull ERLs | cavity, electron, radiation, linac | 84 |
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We present the conceptual designs of BriXS and BriXSino (a minimal test-bench demonstrator of proof of principle) for a compact X-ray Source based on innovative push-pull ERLs. BriXS, the first stage of the Marix project, is a Compton X-ray source based on superconducting cavity technology with energy recirculation and on a laser system in Fabry-Pérot cavity at a repetition rate of 100 MHz, producing 20-180 keV radiation for medical applications. The energy recovery scheme based on a modified folded push-pull CW-SC twin Linac ensemble allows to sustain MW-class beam power with almost just one hundred kW active power dissipation/consumption. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC11 | ||
About • | paper received ※ 20 September 2019 paper accepted ※ 06 November 2019 issue date ※ 24 June 2020 | ||
Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||