The gamma-ray spectrometer used on the Odyssey spacecraft consists of four main components : the gamma sensor head, the neutron spectrometer, the high energy neutron detector, and the central electronics assembly.
32.
In 1998, the neutron spectrometer on the " Lunar Prospector " spacecraft, showed that high concentrations of hydrogen are present in the first meter of depth in the regolith near the polar regions.
33.
The "'Neutron Time Of Flight "'( "'n-TOF "') facility is a neutron spectrometer at CERN . It consists of a pulsed source, a flight path of 200 m length, and a detector systems.
34.
For the implanted hydrogen studies, the NS was intended to examine the entire globe with a sensitivity of 50 ppmv . The neutron spectrometer consisted of two canisters each containing helium-3 and an energy counter.
35.
Instead of radar, Lunar Prospector's science team will rely on a pair of neutron spectrometers, instruments that will measure the presence of hydrogen atoms as it scans the terrain from an altitude of 63 miles.
36.
The general lack of correlation of this feature in sunlit M 3 data with neutron spectrometer H abundance data suggests that the formation and retention of OH and H 2 O is an ongoing surficial process.
37.
An early pioneer of the technique was Bertram Brockhouse who built some of the early neutron spectrometers in the NRX and NRU reactors and was awarded the 1994 Nobel Prize in physics for the development of neutron spectroscopy.
38.
Theoretical models of water-equivalent hydrogen ( WEH ) from epithermal neutrons detected by the Mars Odyssey Neutron Spectrometer ( MONS ) instrument suggest that the regolith just below the surface on Alba's northern flank may contain 7.6 % WEH by mass.
39.
The Max Planck Institute for Solar System Research and the German Aerospace Center ( DLR ) provided the framing cameras, the Italian Space Agency provided the mapping spectrometer, and the Los Alamos National Laboratory provided the gamma ray and neutron spectrometer.
40.
Dr . William Feldman, a co-investigator from Los Alamos National Laboratory in New Mexico, said data from the spacecraft's neutron spectrometer instrument " are consistent with the presence of water ice in very low concentrations across a significant number of craters ."
