LOW-BACKGROUND GE-NAI SPECTROMETER FOR MEASUREMENT OF THE NEUTRINO MAGNETIC-MOMENT

We analyze the possibility of using a low-background Ge-NaI spectromet er in a reactor experiment aimed at searches for the neutrino magnetic moment down to 3 x 10(-11) of the electron magneton. The propel ties of the so-far existing low-background Ge spectrometers are discussed, and additional sources of background in a reactor experiment at a smal l depth are estimated, These estimates place specific requirements on the design of the spectrometer. The results of preliminary background measurements at a small depth of 5 mwe with a dedicated spectrometer b uilt at ITEP are reported.