It is specifically designed for detecting neutrons stemming from breakup reactions of fast fragmentation beams.
A common method for detecting neutrons involves converting the energy released from neutron capture reactions into electrical signals.
The spectrometer is designed to detect neutrons that escape the lunar surface as a result of cosmic-ray bombardment.
The earlier Velas only detected X-rays, gamma rays, and neutrons.
In experiments last year, the Sandia researchers first detected telltale neutrons produced by the fusion reactions.
Dr. Takahashi, who is an expert on neutron detection, said he detected 20 percent more neutrons than would be expected to occur naturally.
It can also be adapted to detect neutrons.
G-M tubes will not detect neutrons since these do not ionise the gas.
Gas proportional detectors can be adapted to detect neutrons.
The detectors can be used to detect both neutrons and gamma rays, which are typically distinguished using pulse-height discrimination.