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TIARA: a large solid angle silicon array for direct reaction studies with radioactive beams

Abstract : A compact, quasi-4pi position sensitive silicon array, TIARA, designed to study direct reactions induced by radioactive beams in inverse kinematics is described here. The Transfer and Inelastic All-angle Reaction Array (TIARA) consists of 8 resistive-strip silicon detectors forming an octagonal barrel around the target and a set of double-sided silicon-strip annular detectors positioned at each end of the barrel. The detector was coupled to the gamma-ray array EXOGAM and the spectrometer VAMOS at the GANIL Laboratory to demonstrate the potential of such an apparatus with radioactive beams. The 14N(d,p)15N reaction, well known in normal kinematics, has been carried out in inverse kinematics for that purpose. The observation of the 15N ground state and excited states at 7.16 and 7.86 MeV is presented here as well as the comparison of the measured proton angular distributions with DWBA calculations. Transferred l-values are in very good agreement with both theoretical calculations and previous experimental results obtained in normal kinematics.
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Contributor : Michel Lion <>
Submitted on : Monday, August 31, 2009 - 12:47:01 PM
Last modification on : Saturday, December 26, 2020 - 1:46:04 PM

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M. Labiche, W. N. Catford, R. C. Lemmon, C. N. Timis, N.A. Orr, et al.. TIARA: a large solid angle silicon array for direct reaction studies with radioactive beams. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2010, 614, pp.439-448. ⟨10.1016/j.nima.2010.01.009⟩. ⟨in2p3-00411985⟩



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