Optimization of the design of OMNIS, the observatory of multiflavor neutrinos from supernovae

Details Optimization of the design of OMNIS, the observatory of multiflavor neutrinos from supernovae Optimization of the design of OMNIS, the observatory of multiflavor neutrinos from supernovae

2002-05-17

arxiv.org/abs/nucl-ex/0205011v1

Nucl.Instrum.Meth. A484 (2002) 194-210

Physics

Nuclear Physics

Nuclear Experiment

Elsevier preprint; 29 pages, 23 figures

Scientific paper

10.1016/S0168-9002(01)01953-2

A Monte Carlo code has been developed to simulate the operation of the planned detectors in OMNIS, a supernova neutrino observatory. OMNIS will detect neutrinos originating from a core collapse supernova by the detection of spalled neutrons from Pb- or Fe-nuclei. This might be accomplished using Gd-loaded liquid scintillator. Results for the optimum configuration for such modules with respect to both neutron detection efficiency and cost efficiency are presented. Careful consideration has been given to the expected levels of radioactive backgrounds and their effects. The results show that the amount of data to be processed by a software trigger can be reduced to the <10kHz region and a neutron, once produced in the detector, can be detected and identified with an efficiency of >30%.

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