Physics
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nimpa.421..471b&link_type=abstract
Nuclear Instruments and Methods in Physics Research Section A, Volume 421, Issue 3, p. 471-491.
Physics
33
Scientific paper
A new and innovative array, MUST, based on silicon strip technology and dedicated to the study of reactions induced by radioactive beams on light particles is described. The detector consists of 8 silicon strip - Si(Li) telescopes used to identify recoiling light charged particles through time of flight, energy loss and energy measurements and to determine precisely their scattering angle through X,Y position measurements. Each /60×60mm2 double sided silicon strip detector with 60 vertical and 60 horizontal strips yields an /X-/Y position resolution of 1mm, an energy resolution of 50keV, a time resolution of around 1ns and a 500keV energy threshold for protons. The backing Si(Li) detectors stop protons up to 25MeV with a resolution of approximately 50keV. CsI crystals read out by photo-diodes which stop protons up to 70MeV are added to the telescopes for applications where higher energy particles need to be detected. The dedicated electronics in VXIbus standard allow us to house the 968 logic and analog channels of the array in one crate placed adjacent to the reaction chamber and fully remote controlled, including pulse visualization on oscilloscopes. A stand alone data acquisition system devoted to the MUST array has been developed. Isotope identification of light charged particles over the full energy range has been achieved, and the capability of the system to measure angular distributions of states populated in inverse kinematics reactions has been demonstrated.
Alamanos N.
Auger F.
Barbier Antoine
Beaumel D.
Blumenfeld Yoel
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