A Network of neutral current spherical TPC's for dedicated supernova detection

The coherent contribution of all neutrons in neutrino nucleus scattering due to the neutral current offers a realistic prospect of detecting supernova neutrinos. As a matter of fact. for a typical supernova at 10 kpc, about 1000 events are expected usinga spherical gaseous detector of radius 4 m andemploying Xe gas at a pressure of 10 Atm. We propose a world wide network of several such simple, stable and low cost supernova detectors with a running time of a few centuries.

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17 LaTex pages, 9 PostScript figures

95.55.Vj
13.15.+g
23.40.-s
14.60.Lm
14.60.Bq
12.15.-y
supernova
neutrino: particle identification
neutrino nucleus: coherent interaction
neutrino nucleon: elastic scattering

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