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公开(公告)号:US3483376A
公开(公告)日:1969-12-09
申请号:US3483376D
申请日:1966-08-03
发明人: LOCKE STANLEY , SHERMAN HAROLD , WAHL JOHN S
CPC分类号: G01V5/107
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公开(公告)号:US3654467A
公开(公告)日:1972-04-04
申请号:US3654467D
申请日:1969-05-12
发明人: TITTMAN JAY , NELLIGAN WILLIAM B , WAHL JOHN S , SHERMAN HAROLD
CPC分类号: G01V5/101
摘要: A typical embodiment of the invention enables neutrons of low average energy that characteristically are emitted from californium 252 (Cf252) to react with, or fail to react with, nuclei within an earth formation, depending on the energy threshold for the reaction in question. The neutron activation induced by means of the Cf252 source is compared with the response induced in the formation through neutrons of higher average energies from other sources, The activation comparison permits the identification of elements and minerals in the formation to be determined accurately.
摘要翻译: 根据本发明的反应的能量阈值,本发明的典型实施例使得能够从ium 252(Cf252)发射的低平均能量的中子与地球内的核反应或不与其反应。 通过Cf252源引起的中子活化与通过来自其他来源的较高平均能量的中子在地层中诱导的响应进行比较。活化比较可以准确地确定地层中的元素和矿物质的鉴定。
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