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Intensifying screen for x-ray detector, x-ray detector, and x-ray inspection device

An X-ray and detector technology, which is applied in the field of brightening paper for X-ray detectors, can solve problems such as increased risk

Active Publication Date: 2013-06-05
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the intensity of the irradiated X-rays is increased in order to clarify the inspection image and increase the inspection sensitivity, the size of the X-ray inspection device will increase as described above, and the risk will increase.

Method used

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  • Intensifying screen for x-ray detector, x-ray detector, and x-ray inspection device
  • Intensifying screen for x-ray detector, x-ray detector, and x-ray inspection device
  • Intensifying screen for x-ray detector, x-ray detector, and x-ray inspection device

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Embodiment Construction

[0022] Hereinafter, an intensifying sheet for an X-ray detector, an X-ray detector, and an X-ray inspection apparatus according to an embodiment will be described with reference to the drawings. figure 1 It is a figure which schematically shows the structure of the X-ray inspection apparatus concerning an embodiment. figure 2 is showing figure 1 A diagram showing the structure of an X-ray detector used in the X-ray inspection apparatus shown. Figure 3 to Figure 5 is showing figure 2 A diagram showing an example of the structure of an intensifying paper used in the X-ray detector shown. figure 1 The shown x-ray inspection device is suitable, for example, for an airport baggage inspection device.

[0023] figure 1 The shown X-ray inspection apparatus includes an X-ray tube 1 as an X-ray irradiation section. The X-ray A emitted from the X-ray tube 1 is collimated by the linear collimator 2 into a slit shape having a predetermined width. The collimated X-rays B are shaped...

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Abstract

An X-ray detector (6) of an embodiment is provided with a transmission-type fluorescence generation portion (11) provided on an incident portion (9a) of a detector body (9), and a reflection-type fluorescence generation portion (13) provided on a portion (9b) other than the incident portion (9a) of the detector body. The transmission-type fluorescence generation portion (11) and the reflection-type fluorescence generation portion (13) are each provided with an intensifying screen provided with a phosphor layer containing praseodymium-activated gadolinium oxysulfide phosphor particles, among which the percentage of particles having a particle diameter within plus or minus 30% of a median particle diameter is 45 vol% or more, and the filling percentage of which is 60 vol% or more, and / or an intensifying screen provided with a phosphor layer containing europium-activated barium chloride fluoride phosphor particles, among which the percentage of particles having a particle diameter within plus or minus 30% of a median particle diameter is 45 vol% or more, and the filling percentage of which is 45 vol% or more.

Description

technical field [0001] Embodiments of the present invention relate to an intensified paper for an X-ray detector, an X-ray detector, and an X-ray inspection device. Background technique [0002] Generally, when luggage is brought into an aircraft, the luggage is checked in advance at the airport in order to ensure the safe operation of the aircraft. As the baggage inspection device, a transmission X-ray inspection device utilizing transmission of X-rays or a Compton scattering X-ray inspection device utilizing Compton scattering of X-rays is generally used. In an X-ray inspection apparatus using transmitted X-rays and Compton-scattered X-rays, the transmitted X-rays or Compton-scattered X-rays are guided to an X-ray detector. These detected X-rays are converted to visible light by the phosphor. The intensity of visible light is detected by a photomultiplier. Baggage inspection is carried out by imaging the inside of the baggage according to the intensity of visible light....

Claims

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Application Information

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IPC IPC(8): G21K4/00G01T1/20
CPCC09K11/7771G21K4/00G01T1/00G21K2004/06C09K11/7733G01N23/04
Inventor 小柳津英二齐藤昭久足达祥卓森本一光
Owner KK TOSHIBA
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