DIRECT CONVERSION TYPE X-RAY DETECTOR, X-RAY DETECTION METHOD, AND X-RAY COMPUTER TOMOGRAPHIC DEVICE

• Main Authors: SAITO YASUO, ISHIDA YOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2023
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

To alleviate a reduction in spatial resolution in a cone angle direction of a direct conversion type X-ray detector.SOLUTION: A direct conversion type X-ray detector according to an embodiment comprises: a plurality of anode electrodes; at least one cathode electrode; and an electric field forming unit. The plurality of anode electrodes are arranged in a cone angle direction of an incident X-ray. The cathode electrode is located closer to the incident side of the X-ray than the plurality of anode electrodes, and faces the plurality of anode electrodes. The electric field forming unit forms an electric field in a direction based on the cone angle of the X-ray between the plurality of anode electrodes and the cathode electrode.SELECTED DRAWING: Figure 2 【課題】直接変換型Ｘ線検出器のコーン角方向の空間分解能の低下を軽減すること。【解決手段】実施形態に係る直接変換型Ｘ線検出器は、複数のアノード電極と、少なくとも１つのカソード電極と、電界形成部とを備える。複数のアノード電極は、入射するＸ線のコーン角方向に配列される。カソード電極は、記複数のアノード電極よりもＸ線の入射側に位置し、複数のアノード電極と対向する。電界形成部は、複数のアノード電極とカソード電極との間にＸ線のコーン角に基づく向きの電界を形成させる。【選択図】図２