Spherical Neutral Detector is a detector for particle physics experiments, successor of the Neutral Detector (ND), created by the team of physicists in the Budker Institute of Nuclear Physics (BINP), Novosibirsk, Russia. There are three major periods in evolution of the SND experiment;from 1995 to 2000 - data collection at the e+e− storage ring VEPP-2M in the energy range 2E=0.4-1.4 GeV, from 2001 to 2008 - upgrade of SND and the storage ring VEPP-2M to VEPP-2000, from 2009 - data collection at the e+e− storage ring VEPP-2000 in the energy range 2E=1.0-2.0 GeV.

The Budker Institute of Nuclear Physics (BINP) is one of the major centres of advanced study of nuclear physics in Russia. It is located in the Siberian town Akademgorodok, on Academician Lavrentiev Avenue. The institute was founded by Gersh Budker in 1959. Following his death in 1977, the institute was renamed in honour of Budker.