New Opportunities in Decay Spectroscopy with the GRIFFIN and DESCANT Arrays

Publication Type
Book Chapter
Year of Publication
Bildstein, V.
Andreoiu, C.
Ball, G. C.
Ballast, T.
Bartlett, C.
Bender, P. C.
Bernier, N.
Bianco, L.
Bishop, D.
Brennan, D.
Bruhn, T.
Cheeseman, A.
Churchman, R.
Ciccone, S.
Davids, B.
Demand, G.
Dillmann, I.
Garnsworthy, A. B.
Garrett, P. E.
Georges, S.
Hackman, G.
Hadinia, B.
Kokke, R.
Krucken, R.
Linn, Y.
Lim, C.
Martin, J. P.
Miller, D.
Mills, W. J.
Morrison, L. N.
Ohlmann, C. A.
Park, J.
Pearson, C. J.
Pore, J. L.
Rajabali, M. M.
Rand, E. T.
Rizwan, U.
Sarazin, F.
Shaw, B.
Starosta, K.
Svensson, C. E.
Sumithrarachchi, C.
Unsworth, C.
Voss, P.
Wang, Z. M.
Williams, J.
Wong, J.
Doyle, B. L.
Glass, G. A.
McDaniel, F. D.
Wang, Y.
Parriott, C. R.
Name of Publication
23rd International Conference on the Application of Accelerators in Research and Industry - CAARI 2014
Series Title
Physics Procedia
Short Title
New Opportunities in Decay Spectroscopy with the GRIFFIN and DESCANT Arrays
Elsevier Science Bv
Accession Number
Beta decay, Beta-delayed neutron emission, clover detectors, Deuterated Benzene Neutron Detectors, Gamma-ray spectroscopy, HPGe, spectrometer

The GRIFFIN (Gamma-Ray Infrastructure For Fundamental Investigations of Nuclei) project is a major upgrade of the decay spectroscopy capabilities at TRIUMF-ISAC. GRIFFIN will replace the 8 pi spectrometer with an array of up to 16 large-volume HPGe clover detectors and use a state-of-the-art digital data acquisition system. The existing ancillary detector systems that had been developed for 8 pi, such as the SCEPTAR array for beta-tagging, PACES for high-resolution internal conversion electron spectroscopy, and the DANTE array of LaBr3/BaF2 scintillators for fast gamma-ray timing, will be used with GRIFFIN. GRIFFIN can also accommodate the new neutron detector array DESCANT (Deuterated Scintillator Array for Neutron Tagging), enabling the study of beta-delayed neutron emitters. DESCANT consists of up to 70 detectors, each filled with approximately 2 liters of deuterated benzene, a liquid scintillator that provides pulse-shape discrimination (PSD) capabilities to distinguish between neutrons and gamma-rays interacting with the detector. In addition, the anisotropic nature of n-d scattering as compared to the isotropic n-p scattering allows for the determination of the neutron energy spectrum directly from the pulse-height spectrum, complementing the time-of-flight (TOF) information. The installation of GRIFFIN is under way and first experiments are planned for the fall of 2014. The array will be completed in 2015 with the full complement of 16 clovers. DESCANT will be tested coupled with GRIFFIN in spring of 2015. (C) 2015 The Authors. Published by Elsevier B.V.