[특허]Split energy level radiation detection

[미국특허] Split energy level radiation detection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	GO1T-001/20 G01J-001/58
출원번호	US-0444605 (1982-11-26)
발명자 / 주소	Barnes Gary T. (5068 Juiata Dr. Birmingham AL 35210)
인용정보	피인용 횟수 : 84 인용 특허 : 10

초록 ▼

An energy discriminating apparatus and method is disclosed for use in connection with digital radiography and fluoroscopy. In use of the detection system and method an x-ray source is actuated to direct x-rays through a patient\s body, the x-rays including both higher and lower energy radiation. A first detector element, including a plurality of segments, is positioned opposite the source to receive and respond predominantly to x-rays in a lower energy range, the remaining x-rays, being generally of higher energy, passing through the first detector element. A second detector element, also including a plurality of segments, each segment including a phosphor coating layer and a sensor, is positioned to receive and respond to the higher energy radiation passing through the first element. The sensors are coupled respectively to each detector element segment for substantially simultaneously sensing the response and spatial location, relative to the detector elements, of radiation to which each detector element respectively responds. A filter element is interposed between the first and second detectors to enhance discrimination in the energy response of the respective detector elements. Particular preferred detector phosphor materials are identified. The sensors produce separately and simultaneously information representing patterns of relatively lower and higher energy emergent from the patient\s body. Digital data processing and conversion equipment responds to the sensors to produce digital information representing each of said images, which can be digitally processed to enhance image characteristics.

대표청구항 ▼

An energy discriminating radiation detector comprising: (a) a first element comprising a first material of a kind which is preferentially responsive to penetrative radiation of a first energy range; (b) a second element comprising a second material different in kind from said first material and of a kind which is preferentially responsive to penetrative radiation of a second energy range extending higher than said first energy range and which is positioned to receive radiation which has penetrated through a portion of said first element; and (c) a filter of penetrative radiation interposed between said first and second elements.

이 특허에 인용된 특허 (10) 인용/피인용 타임라인 분석

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[미국특허] Split energy level radiation detection 원문보기

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