Detector and detecting system
The invention provides a detector and a detecting system. The detector comprises a plurality of unit crystals arrayed in a matrix mode, and the unit crystals generate visible light after absorbing gamma rays; a position sensitive photomultiplier coupled with a crystal array is used for converting the visible light received by all areas of all the unit crystals into electric signals, and the electric signals are used in a data processing unit for counting the number of gamma ray absorbing cases distributed on all the unit crystals and analyzing the amplitude of the electric signals to achieve energy spectrum measurement of the gamma rays. People only need to adopt one position sensitive photomultiplier, and the detector is simple in structure and high in detecting efficiency. 1. A detector, characterized in that comprises: Crystal array, comprises a matrix crystal of a plurality of units, each unit crystal in the process of absorbing the visible light is produced after gamma ray; The crystal array is coupled to the position sensitive photomultiplier tube, is used for each unit crystal corresponding to each area of the received visible light into the electric signal, said electric signal to use for data processing device on each unit crystal on the number of gamma-ray absorption event count and analyzing amplitude of the electrical signal, the gamma-ray spectrum measurement. 2. Detector according to Claim 1, characterized in that the crystal array includes 4 units crystal, said 4 units crystal is 2 × 2 matrix array. 3. Detector according to Claim 1, characterized in that the position-sensitive photomultiplier tube and each of the states the unit crystal coupling. 4. Detector according to Claim 2, characterized in that the shape of the crystals of the units for the cube. 5. Detector according to Claim 4, characterized in that said unit crystal size is 1 cubic centimetre -10 cubic centimetre. 6. Detector according to Claim 1, characterized in that the plurality of units is made of the same kind of material. 7. Detector according to Claim 6, characterized in that the plurality of units crystal is a cesium iodide crystal, lanthanum bromide crystal, BGO crystal, cdznte crystal, sodium iodide crystal, yttrium luetcium silicate scintillation crystal, b of lead fluoride crystal, PWO crystal, or barium fluoride crystal. 8. A probe system, characterized in that comprises a -7 any detector according to Claim 1, also comprises a data processing device, said data processing means and the detector is connected, according to the electrical signal used for the various units to the distribution of the number of gamma-ray absorption event count and analyzing amplitude of the electrical signal, the energy of the received gamma ray, gamma-ray spectrum measurement is realized. 9. Detection system according to Claim 8, characterized in that also comprises a display device, for displaying the data processing information. 10. Detection system according to Claim 9, characterized in that also includes the power supply unit, as described in the power supply device, detector and provide electric energy data processing device.