We present the details of the construction and commissioning of the Texas-Edinburgh-Catania Silicon Array (TECSA). TECSA is composed of up to 16 Micron Semiconductor Ltd. type-YY1 silicon strip detectors and associated electronics, which is designed for use in studies of nuclear astrophysics and nuclear structure with rare isotope beams. TECSA was assembled at the Texas A&M University Cyclotron Institute and will be housed there for the next few years. The array was commissioned in a recent experiment where the d((14)C,p)(15)C reaction at 11.7 MeV/u was measured in inverse kinematics. The results of the measurement and a discussion of the future use of this array are presented. (C) 2011 Elsevier B.V. All rights reserved.
[Show abstract][Hide abstract] ABSTRACT: The C14 + n ↔C15 system has been used as a test case in the evaluation of a new method to determine spectroscopic factors that uses the asymptotic normalization coefficient (ANC). The method proved to be unsuccessful for this case. As part of this experimental program, the ANCs for the 15C ground state and first excited state were determined using a heavy-ion neutron transfer reaction as well as the inverse kinematics (d,p) reaction, measured at the Texas A&M; Cyclotron Institute. The values C2s1/22=1.88±0.18 fm-1 for the ground state and C1d5/22=4.25±0.38×10-3 fm-1 for the first excited state (Eexc=740 keV) were obtained. The ANCs were used to evaluate the astrophysical direct neutron capture rate on C14, which was then compared with the most recent direct measurement and found to be in good agreement. A study of the C15 SF via its mirror nucleus F15 and a new insight into deuteron stripping theory are also presented.
Physical Review C 03/2014; 89(4). DOI:10.1103/PhysRevC.89.044605 · 3.73 Impact Factor
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