Collimator, radiation detection device, and radiation inspection device
一种放射线、准直仪的技术，应用在使用光阑/准直器、用于放射诊断的仪器、辐射诊断用隔膜等方向，能够解决探测精度劣化等问题，达到紧凑制造、简化制造工序的效果
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no. 1 Embodiment approach
[0036] figure 2 It is a cross-sectional perspective view of one X-ray detection unit 10 according to the first embodiment. Each of the X-ray detection units 10 includes a collimator 20 and a plurality of X-ray detection elements (radiation detection elements) 30 .
[0037] The X-ray detection elements 30 are arranged at an interval (pitch) a of about 0.1 to 2.00 mm. The X-ray detection element 30 is arranged corresponding to each X-ray transmission part 21 provided in the collimator 20 described later.
[0038] The X-ray detection element 30 may be of an indirect conversion type or a direct conversion type. The indirect conversion X-ray detection element 30 is composed of photosensors such as a scintillator and a photomultiplier tube. The scintillator converts incident X-rays into light, and the photoelectric conversion element converts the converted light into electrical signals.
[0039] The direct-conversion X-ray detection element 30 is composed of a plurality of cadmi...
no. 2 Embodiment approach
[0087] Next, a second embodiment of the present invention will be described. The second embodiment differs from the first embodiment in the configuration and manufacturing method of the collimator 120 . Other points are the same as those of the first embodiment, and therefore descriptions of the same parts are omitted. The collimator 20 of the first embodiment uses tin for the X-ray shielding portion 22 , but the collimator 120 of the second embodiment uses mercury or the like that is liquid at normal temperature for the X-ray shielding portion 122 .
[0088] Figure 8 It is a figure explaining the manufacturing method of the collimator 120 of 2nd Embodiment. Such as Figure 8 As shown in (c), the collimator 120 of the second embodiment includes: a container 150; a mercury liquid X-ray shielding unit 122 sealed in the container 150; The upper end and the lower end are fixed between two opposing surfaces of the container 150 and are made of a solid material such as carbon w...
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