公开(公告)号：US3702932A

公开(公告)日：1972-11-14

申请号：US3702932D

申请日：1971-04-15

Applicant: ATOMIC ENERGY COMMISSION

Inventor： TANNER ALLAN B ,  SENFTLE FRANK E ,  MOXHAM ROBERT M

IPC: F25D3/00 ,  F25D19/00 ,  G01V5/10 ,  G21G4/02 ,  H01J39/00

CPC classification number: G21G4/02 ,  F25D3/00 ,  F25D19/006 ,  G01V5/102

Abstract: A borehole logging probe for mineral or petroleum exploration is disclosed having a californium-252 neutron source for activating elements adjacent to the borehole and a solid state detector for sensing resulting radiation. The probe includes an elongated watertight housing having a shielded compartment for the neutron source, and a thermally insulated compartment for containing the radiation detector. A reservoir is filled with a fusible solid cryogen and located within the insulated compartment adjacent to the detector with a thermal conduction member disposed to cool the radiation detector by transferring heat to the solid cryogen.

Abstract translation: 公开了一种用于矿物或石油勘探的钻孔测井探测器，其具有用于激活邻近钻孔的元件的ium -225中子源和用于感测所得辐射的固态检测器。 探头包括细长的水密外壳，其具有用于中子源的屏蔽隔间，以及用于容纳放射线检测器的隔热室。 储存器填充有可熔固体冷冻剂，并且位于与检测器相邻的隔热隔室内，具有传导构件，其被设置为通过将热量传递到固体冷冻剂来冷却辐射检测器。