SHARC: Silicon Highly-segmented Array for Reactions and Coulex used in conjunction with the TIGRESS γ-ray spectrometer

C. Aa Diget, University of York
S. P. Fox, University of York
A. Smith, The University of Manchester
S. Williams, TRIUMF
M. Porter-Peden, Colorado School of Mines
L. Achouri, Université de Caen Normandie
P. Adsley, University of York
H. Al-Falou, Saint Mary's University
R. A.E. Austin, Saint Mary's University
G. C. Ball, TRIUMF
J. C. Blackmon, Louisiana State University
S. Brown, University of Surrey
W. N. Catford, University of Surrey
A. A. Chen, McMaster University
J. Chen, McMaster University
R. M. Churchman, TRIUMF
D. DiValentino, TRIUMF
M. Djongolov, TRIUMF
B. R. Fulton, University of York
A. Garnsworthy, TRIUMF
G. Hackman, TRIUMF
U. Hager, TRIUMF
R. Kshetri, Simon Fraser University
L. Kurchaninov, TRIUMF
A. M. Laird, University of York
J. P. Martin, University of Montreal
M. Matos, Louisiana State University
J. N. Orce, TRIUMF
N. A. Orr, Université de Caen Normandie
C. J. Pearson, TRIUMF
F. Sarazin, Colorado School of Mines


The combination of γ-ray spectroscopy and charged-particle spectroscopy is a powerful tool for the study of nuclear reactions with beams of nuclei far from stability. This paper presents a new silicon detector array, SHARC, the Silicon Highly-segmented Array for Reactions and Coulex. The array is used at the radioactive-ion-beam facility at TRIUMF (Canada), in conjunction with the TIGRESS γ-ray spectrometer, and is built from custom Si-strip detectors utilising a fully digital readout. SHARC has more than 50% efficiency, approximately 1000-strip segmentation, angular resolutions of Δθ ≈ 1.3 deg and Δφ ≈ 3.5 deg, 25-30 keV energy resolution, and thresholds of 200 keV for up to 25 MeV particles. SHARC is now complete, and the experimental program in nuclear astrophysics and nuclear structure has commenced. © 2011 IOP Publishing Ltd and SISSA.