AS102 Study Guide - Final Guide: Neutrino Detector, Neutrino, Sudbury Neutrino Observatory
Document Summary
), and then measure that rate, there has always been a discrepancy in the rates. In fact, the measured rate was always about 30% of the expected rate. Various labs have been set up around the world (including the sno lab in sudbury discussed below) to study this problem. The guess was that some of the neutrinos change into a different and (previously) undetectable type of neutrino between their creation in the sun and the time they arrive at earth. In the last few years this guess has been confirmed by experiments completed at the sno lab canada"s contribution to the solution of the solar neutrino problem. Following below is a summary of the essential features of the sno development and the outcome of the experiments that took place there. In the mid-1980s an international group of scientists proposed the development of the sudbury neutrino. Following approval, a neutrino detector was built in a rock cavern two kilometres underground.
