G - Physics – 01 – V
Patent
G - Physics
01
V
358/3, 358/32
G01V 5/06 (2006.01) G01T 1/202 (2006.01) G01T 1/208 (2006.01) G01V 5/08 (2006.01)
Patent
CA 1236226
HIGH RESOLUTION SCINTILLATION CRYSTAL Abstract of the Disclosure For use in downhole logging tools responsive to gamma rays or x-rays, an improved scintillation device is set forth. In the preferred and illustrated embodiment, a scintillation crystal, typically sodium iodide (thallium activated), is utilized. It is an enlongate, regular structure having two ends, and separate photomultiplier tubes (PMT) are attached at the separate ends. The two PMT output signals are supplied to a circuit which forms a signal adjusted or modified to compensate for loss of light energy arising during transmission through the scintillation crystal to the PMT's.
487425
Nunley Allen
Sonne Darrell S.
Company Halliburton
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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