Author: "Ruiz, C." / Publication Year Range: Last 50 years / Topic: nuclear reactions and physical measurements - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Ruiz, C." Topic nuclear reactions Topic physical measurements Publication Year Range Last 50 years

Author: Hutcheon, D.A., Ruiz, C., Fallis, J., D'Auria, J.M., Davids, B., Hager, U., Martin, L., Ottewell, D.F., Reeve, S., and Rojas, A.
Subjects: *RADIATIVE capture, *PHYSICAL measurements, *NUCLEAR energy, *NUCLEAR facilities, *NUCLEAR reactions, *GAMMA rays
Abstract: Abstract: The DRAGON facility for the study of radiative capture reactions has an extended gas target, surrounded by an array of BGO detectors. The distribution of detected gamma rays amongst the segmented array permits an estimate of the reaction position and consequently of the resonance energy. We report a study of the technique, using the 24Mg(p, )25Al reaction. Energy determination to better than 0.5% has been demonstrated. [Copyright &y& Elsevier]
Published: 2012
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Author: Salter, R. J. C., Aliotta, M., Davinson, T., Falou, H. Al., Chen, A., Davids, B., Fulton, B. R., Galinski, N., Howell, D., Lotay, G., Machule, R., Murphy, A. StJ., Ruiz, C., Sjue, S., Taggart, M., Waiden, R., and Woods, R. J.
Subjects: *PHYSICAL measurements, *NEON isotopes, *NUCLEAR reactions, *X-ray bursts, *GROUND state (Quantum mechanics), *PHASE transitions, *POTENTIAL barrier
Abstract: The 18Ne(α,p)21Na reaction provides one of the main HCNO-breakout routes into the rp process in x-ray bursts. The 18Ne(α,p0)21Na reaction cross section has been determined for the first time in the Gamow energy region for peak temperatures 7 ∼ 2 GK by measuring its time-reversal reaction 21Ne(p,α)18Ne in inverse kinematics. The astrophysical rate for ground-state to ground-state transitions was found to be a factor of 2 lower than Hauser-Feshbach theoretical predictions. Our reduced rate will affect the physical conditions under which breakout from the HCNO cycles occurs via the 18Ne(p,α)21Na reaction. [ABSTRACT FROM AUTHOR]
Published: 2012
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Author: Hager, U., Buchmann, L., Davids, B., Fallis, J., Fulton, B. R., Galinski, N., Greife, U., Hutcheon, D. A., Ottewell, D., Rojas, A., Ruiz, C., and Setoodehnia, K.
Subjects: *PHYSICAL measurements, *NUCLEAR reactions, *ASTROPHYSICS, *NUCLEAR energy, *NUCLEOSYNTHESIS, *NUCLEAR cross sections, *KINEMATICS, *CENTER of mass
Abstract: The 17O(p,γ)18F reaction plays an important role in hydrogen-burning nucleosynthesis. Conflicting values for the low-energy behavior of its cross section exist in the literature. We present direct measurements of the astrophysical S factor of the 17O(p,γ)18F reaction at center-of-mass energies between 250 and 500 keV. These measurements were conducted in inverse kinematics at the DRAGON recoil separator. [ABSTRACT FROM AUTHOR]
Published: 2012
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