Development of a new detector for solar neutrino detection

The research and development of a new type detector for solar neutrino detection is introduced. The detector uses two types of scintillators : one is the gadolinium (Gd) loaded liquid scintillator with the concentration of 5 %, for which the light attenuation length is greater than or equal to 150cm and the energy resolution is 21 % (standard deviation) for 60keV Gamma-ray; the other is a phi 1cm x 3cm GSO:Ce crystal, which has the light yield 20 % with respect to the NaI:Tl, the light decay time 60ns and the energy resolution 9.2 % (standard deviation) for 662keV Gamma-ray. The characters of the detector composed by both scintillators for solar neutrino detector and the methods to suppress the backgroud are discussed. A simulation for such detector with the size phi 10cm x 50cm shows the light collection efficiency can reach 20 %.