Processing

Please wait...

Settings

Settings

1. WO1996005521 - APPARATUS, SYSTEM AND METHOD FOR GAMMA RAY AND X-RAY DETECTION

Publication Number WO/1996/005521
Publication Date 22.02.1996
International Application No. PCT/US1995/009965
International Filing Date 07.08.1995
Chapter 2 Demand Filed 27.02.1996
IPC
G01T 1/24 2006.01
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
24with semiconductor detectors
CPC
G01T 1/24
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
24with semiconductor detectors
Applicants
  • HELFGOTT & KARAS, P.C. [US/US]; Empire State Building 60th floor New York, NY 10118, US (MW)
  • URIGAL TECHNOLOGIES LTD. [IL/IL]; Kiryat Weizmann P.O. Box 2421 76123 Rehovot, IL (AllExceptUS)
  • EL-HANANY, Uri [IL/IL]; IL (UsOnly)
  • LACHISH, Uri [IL/IL]; IL (UsOnly)
  • TISGELMAN, Alex [IL/IL]; IL (UsOnly)
Inventors
  • EL-HANANY, Uri; IL
  • LACHISH, Uri; IL
  • TISGELMAN, Alex; IL
Agents
  • KARAS, Aaron, B. ; Helfgott & Karas, P.C. Empire State Building 60th floor New York, NY 10118, US
Priority Data
110,63711.08.1994IL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS, SYSTEM AND METHOD FOR GAMMA RAY AND X-RAY DETECTION
(FR) APPAREIL, SYSTEME ET METHODE DE DETECTION DES RAYONS GAMMA ET X
Abstract
(EN)
This invention discloses a method for determining gamma ray photon energy comprising irradiating a high resistance n-type or p-type cadmium telluride alloy crystal (10) with gamma ray photons, providing first and second electrical contacts (20, 30, 40) which are in electrical communication with the crystal (10), which are respectively negatively and positively biased and which provide free flow of electrons from the negatively biased contact to the crystal and wherein holes, generated by absorption of the photons in the crystal, recombine with said electrons and determining the photon energy by measuring the amount of charge generated per photon absorbed by the crystal.
(FR)
L'invention porte sur un procédé de détermination de l'énergie des photons de rayons gamma consistant: à irradier un cristal (10) d'alliage de tellurure de cadmium de type n ou p à forte résistance par des photons de rayons gamma; à constituer un premier et un second contact (20, 30, 40) reliés électriquement au cristal (10) et polarisés respectivement négativement et positivement et qui produisent des flux d'électrons libres allant du contact polarisé négativement vers le cristal, où des trous, créés du fait de l'absorption des photons par le cristal, se recombinent avec lesdits électrons; et à déterminer l'énergie des photons en mesurant la charge produite par photon absorbé par le cristal.
Latest bibliographic data on file with the International Bureau