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GRS
The Gamma Ray Spectrometer weighs 30.5 kilograms (67.2 pounds)
and uses 32 watts of power. Along with its cooler, the Gamma Ray
Spectrometer measures 46.8 centimeters (18.4 inches) by 53.4
centimeters (21.0 inches) by 60.4 centimeters (23.8 inches).
The neutron spectrometer is 17.3 centimeters (6.8 inches) by
14.4 centimeters (5.7 inches) by 31.4 centimeters (12.4 inches).
The high-energy neutron detector measures 30.3 centimeters
(11.9 inches) by 24.8 centimeters (9.8 inches) by 24.2
centimeters (9.5 inches). The instrument's central electronics
box is 28.1 inches (11.1 inches) by 24.3 centimeters (9.6 inches)
by 23.4 centimeters (9.2 inches).
How GRS Works
GRS instrument site at the University of Arizona
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