| Patent application number | Description | Published |
|---|
| 20100308227 | RADIATION DETECTOR AND TOMOGRAPHY EQUIPMENT PROVIDED WITH THE SAME - In a scintillator of a radiation detector according to this invention, first reflectors provided in first scintillation counter crystal layer adjacent to one another have gaps wider than first reflectors provided in second scintillation counter crystal layer such that an overall width of the first reflectors in the first scintillation counter crystal layer in an arranging direction is identical to an overall width of the first reflectors in the second scintillation counter crystal layer in an arranging direction. Such construction improves spatial resolution at a side end of the scintillator. | 12-09-2010 |
| 20100320389 | RADIATION DETECTOR AND TOMOGRAPHIC EQUIPMENT PROVIDED WITH THE SAME - A radiation detector according to this invention has a first reflector frame and a second reflector frame. Each of scintillation counter crystals is inserted in a direction through the first reflector frame and the second reflector frame, whereby two or more scintillation counter crystals are arranged in a first direction and a second direction to form a scintillation counter crystal layer. A position of the first reflector frame provided in the scintillation counter crystal layer differs from a position of the second reflector frame provided in the scintillation counter crystal layer. With such construction, the radiation detector may be provided of significantly suppressed manufacturing costs without reducing spatial resolution and detecting sensitivity. | 12-23-2010 |
| 20110024023 | METHOD OF MANUFACTURING LIGHT GUIDE AND METHOD OF MANUFACTURING A RADIATION DETECTOR - According to a method of manufacturing a light guide of this invention, a shaping member is provided that covers a molding frame. In a releasing step, when the shaping member is lifted up in a direction apart from the molding frame, the light guide is lifted and pulled out from an aperture of the molding frame accordingly. As a result, there is no need to pull out the light guide by conventionally providing a pressing plug on a bottom of the molding frame and pressing the plug in a direction. In addition, there is no need to perform a grinding process to the light guide. | 02-03-2011 |
| 20110056618 | METHOD OF MANUFACTURING RADIATION DETECTOR - With this invention, a light guide is placed on a scintillator while an optical adhesive for forming the scintillator does not harden. Accordingly, a method of manufacturing a radiation detector may be provided in which the step of hardening the optical adhesive that joins scintillation counter crystals to one another and the step of optically coupling the scintillator and the light guide are performed en bloc. Accordingly, the radiation detector may be manufactured with no complicated process of forming the scintillator and the light guide individually and coupling them with the optical adhesive. | 03-10-2011 |
| 20110096897 | RADIATION TOMOGRAPHY APPARATUS - Radiation tomography apparatus of this invention has a shield that shields entering of radiation flying from outside of the gantry. The shield is formed of shielding pieces. Consequently, there is no need for manufacturing the shield in a large and expensive furnace. Accordingly, the radiation tomography apparatus may be provided that is easily manufactured and achieves suppressed cost. Moreover, with the radiation tomography apparatus of this invention, maintenance may be performed through removal of the shielding pieces without removing the entire shield. | 04-28-2011 |
| 20110113611 | METHOD OF MANUFACTURING RADIATION TOMOGRAPHY APPARATUS - A method of manufacturing radiation tomography apparatus in this invention includes a step of fixing a detector array to a holding member by adjusting a relative position of the detector array and the holding member through fixation of a sub member to a base of a first jig and contact of a scintillator of the detector array to a branch portion and a support board. Such configuration may realize provision of radiation tomography apparatus with higher spatial resolution by manufacturing a group of detectors having the scintillators of suppressed deviation in arrangement and being arranged regularly upon arranging radiation detectors for forming the group of detectors. | 05-19-2011 |
| 20110198502 | PARTICLE RADIOTHERAPY APPARATUS - In a particle radiotherapy apparatus which has a passage for allowing movement of a particle beam, this invention provides a particle radiotherapy apparatus with high sensitivity for detection of annihilation radiation pairs even if there is a difference between a point where the particle beam loses energy and a position of a detector ring in a body axis direction of a patient. For the purpose of solving such a problem, the particle radiotherapy apparatus according to this invention includes an elliptic detector ring which is vertically long and is reversibly tiltable. Consequently, annihilation gamma ray pairs are detected with the single elliptic detector ring. Then, annihilation gamma ray pairs occurring inside the elliptic detector ring will be detected. In other words, all annihilation gamma ray pairs will impinge on the single elliptic detector ring at substantially right angles. This inhibits lowering of sensitivity for detection. | 08-18-2011 |
| 20110240867 | PARTICLE RADIOTHERAPY APPARATUS - In order to provide a particle radiotherapy apparatus with high sensitivity for detecting annihilation radiation pairs, an elliptic detector ring of a particle radiotherapy apparatus according to this invention makes rotating movement relative to a top board. Specifically, with rotation about a base axis of a first ring and a second ring, the elliptic detector ring makes rotating movement in a state of being tilted relative to the first ring. Incidentally, the elliptic detector ring cannot be disposed in a position to interfere with travel of this particle beam. According to the construction of this invention, the elliptic detector ring is tilted relative to the top board, and besides makes rotating movement relative to the top board. Since the elliptic detector ring can be moved away from the particle beam by rotating the elliptic detector ring, it is possible to provide the particle radiotherapy apparatus which can detect annihilation radiation while emitting the particle beam. | 10-06-2011 |
