SHIELDINGEFFECTSIN SPACEBORNE,NaIGAMMA-RAYSPECTROMETERS
1987
Radioactivity inducedin detectorsby cosmic raysand trappedprotonslimitsthe sensitivityof spacebornegamma-rayspectrometers.In thispaper 1-D transportcalculations are used to analysethe influenceof neutronshieldingon the radioactive backgroundinducedin NaI by neutroncapturereactions. It is foundthattheuse of thermalisingabsorbersto surroundcentraldetectorelementsis in factcounterproductive.Full 3-D transportcodeshavebeen applied to thetrappedprotoncaseand verifyboth the absolute levelsof thiscomponentand the negativeinfluenceof neutronshielding.
Keywords:
- Correction
- Cite
- Save
- Machine Reading By IdeaReader
0
References
0
Citations
NaN
KQI