Cross-Sectional Probability Study of 238U using the Silicon Telescope Array for Reaction Studies
Abstract
Estimating the neutron induced cross sections for reactions on nuclei with short lifetimes are important for understanding stellar evolution and isotopic and elemental abundances. However, such cross sections are often very difficult or impossible to measure directly. One of the best mechanisms currently available to study such reactions is through the surrogate method where the same compound system is produced via light-ion induced reactions on a stable target. By studying these surrogate reactions, we can learn about reactions that would be nearly impossible to create in the laboratory. An experiment was conducted using the Silicon Telescope Array for Reaction Studies at the Wright Nuclear Structure Laboratory at Yale University. A high-energy deuteron beam was fired at a 238U target, a 236U target, and a 92Zr target. Using the STARS detector and an array of high efficiency segmented clover germanium detectors in the YRAST Ball Array, Hydrogen, deuterons, tritons, and fragments could all be observed. Data was collected for each of the targets over a period of several weeks. The data is currently being analyzed using the Radware analysis package. Preliminary results will be presented. This work was supported in part by the NSF grant PHY0204811 and by the Research Corporation grant CC5494 and by the U.S. DOE under grant numbers DE-FG02-91ER-40609, DE-FG03-03NA-00081, and DE-FG02-88ER-40417.
- Publication:
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APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- October 2004
- Bibcode:
- 2004APS..DNP.CK083C