MEASURING PLANETARY NEUTRON ALBEDO FLUXES BY REMOTE GAMMA-RAY SENSING.

被引：0
|
作者：
Haines, Eldon L. [1 ]
Metzger, Albert E. [1 ]
机构：
[1] Pasadena, CA, USA, Pasadena, CA, USA
来源：
Nuclear instruments and methods in physics research | 1984年 / 226卷 / 2-3期
关键词：
RADIATION DETECTORS - Space Applications - SPECTROMETERS; GAMMA RAY;
D O I：
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学科分类号：
摘要：
A remote-sensing gamma -ray spectrometer (GRS) is capable of measuring planetary surface composition through the detection of characteristic gamma rays. In addition, the planetary neutron leakage flux may be detected by means of a thin neutron absorber surrounding the gamma -ray detector which converts the neutron flux into a gamma -ray flux having a unique energy signature. The gamma rays representing the neutron flux are observed against interference consisting of cosmic gamma rays, planetary continuum and line emission, and a variety of gamma rays arising from cosmic-ray particle interactions with the gamma -ray spectrometer and spacecraft (SC). In this paper the amplitudes of planetary and non-planetary neutron fluxes are assessed and their impact on the sensitivity of measurement is calculated for a lunar orbiter mission and a comet nucleus rendezvous mission.
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页码：517 / 523
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