Iaa-L-0202p
A pulsed DT neutron generator system, similar to that used in commercial well logging, offers the possibility of performing accurate elemental analyses to depths of tens of centimeters in a few seconds with the probe on the body's Through time-phased measurements of the ray spectrum synchronize...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.26.3149 http://techreports.jpl.nasa.gov/1994/94-0533.pdf |
| Summary: | A pulsed DT neutron generator system, similar to that used in commercial well logging, offers the possibility of performing accurate elemental analyses to depths of tens of centimeters in a few seconds with the probe on the body's Through time-phased measurements of the ray spectrum synchronized with the neutron pulses, concentrations of hydrogen, carbon and key mineral forming elements can be determined even with a low-resolution spectrometer. If a high resolution spectrometer is used, the number of elements measured and the sensitivity for measurement is increased. An implanted probe system, such as in a comet or ice cap would offer the highest possible sensitivity. An inexpensive neutron probe system based on modifications of the well-logging system has been proposed for the Mission to Venus and the Mars Polar Pathfinder. Preliminary experiments on a simulated Venusian indicate that high quality results can be obtained. INTRODUCTION There are a number of planned and contempl. |
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