Bibliographic Details
| Title: |
17O(p, ) 14N study at the LUNA accelerator. |
| Authors: |
Scott, D.A.1, Bruno, C.2, Caciolli, A.3,4 caciolli@pd.infn.it |
| Source: |
Nuclear Instruments & Methods in Physics Research Section A. Aug2013, Vol. 718, p481-482. 2p. |
| Subjects: |
Hydrogen, Nucleosynthesis, Asymptotic giant branch stars, Electron accelerators, Chemical reactions, Astrophysics, Aluminum foil |
| Abstract: |
Abstract: Hydrogen burning of 17O sensitively influences nucleosynthesis in a number of stellar sites, including red giants, asymptotic giant branch (AGB) stars, massive stars, and classical novae. In particular, the ratio between reaction rates of 17O(p, ) 14N (Q=1.2MeV) and 17O(p, ) 18F (Q=5.6MeV) channels on 17O is one of the most important parameters for the galactic synthesis of 17O, the stellar production of radioactive 18F, and for predicted O isotopic ratios in premolar grains. Now the LUNA collaboration is preparing a new effort to study the (p, ) channel on 17O at astrophysical energies. To reach this goal a new chamber has been constructed which allows to place 8 silicons detectors in backward directions. The setup improves the efficiency which is a crucial parameter in measuring nuclear reaction at such low energies. Aluminum foils are placed on the silicon in order to stop the elastic backscattered protons which otherwise produce non-negligible background on the silicons. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
