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특허 상세정보

Long life oil well logging assembly

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01V-005/04   
미국특허분류(USC) 250/256 ; 250/368
출원번호 US-0203573 (1994-03-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 42  인용 특허 : 0
초록

A well logging scintillation detector has a gamma ray detector crystal with a window at one end and a single or multi-layer cladding surrounding the remainder of the crystal, with a reflective layer surrounding the cladding. The reflective layer, which may be a thin, high reflective metallic layer or reflective particles in a resin matrix, is surrounded by an elastomer with reflective particles which is surrounded by a casing which is a metal. The casing is surrounded by one or more outer casings, which are separated from each other by elastomeric member...

대표
청구항

Well logging scintillation detector apparatus, comprising a crystal, an optical system at one end of the crystal, a cladding layer surrounding a front and a back of the crystal except at the optical system, a reflective layer surrounding the cladding layer, an inner cushion surrounding the reflective layer, an inner housing surrounding the inner cushion, an outer cushion surrounding the inner housing, an outer housing, a thermal insulator surrounding the outer cushion within the outer housing, and a seal adjacent the optical system for sealing the detect...

이 특허를 인용한 특허 피인용횟수: 42

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