X-RAY IMAGE AMPLIFICATION APPARATUS
PURPOSE: To obtain high luminous efficiency with a relatively thin output fluorescent screen by applying a voltage, lower than the accelerating voltage applied to a second anode part on the input screen side, to a first anode part arranged near an output screen. CONSTITUTION: A photodiode 9 of an X-...
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| creator | RIHIYARUTO FURANKU KURISUCHIAN BUORUFU |
| description | PURPOSE: To obtain high luminous efficiency with a relatively thin output fluorescent screen by applying a voltage, lower than the accelerating voltage applied to a second anode part on the input screen side, to a first anode part arranged near an output screen. CONSTITUTION: A photodiode 9 of an X-ray image intensifier, and electrodes 16-18 and anode parts 21, 22 of an electronic optical system are connected to a high-voltage generating device 2. The device 2 supplies an accelerating voltage and a braking voltage, suitable for the constituent parts and voltage for the electronic optical system. A photocathode 9 and a metallic casing part of the device 2 are placed at zero potential. As accelerating voltage, voltage of 30kV, for instance, is applied to a second anode part 22. The first anode part 21 is placed in a potential of 5-25kV, for instance, and is adjustable by an adjustment operating element 24 of the device 2. As a result, the electrons are braked in the region of an anode 10. |
| format | Patent |
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CONSTITUTION: A photodiode 9 of an X-ray image intensifier, and electrodes 16-18 and anode parts 21, 22 of an electronic optical system are connected to a high-voltage generating device 2. The device 2 supplies an accelerating voltage and a braking voltage, suitable for the constituent parts and voltage for the electronic optical system. A photocathode 9 and a metallic casing part of the device 2 are placed at zero potential. As accelerating voltage, voltage of 30kV, for instance, is applied to a second anode part 22. The first anode part 21 is placed in a potential of 5-25kV, for instance, and is adjustable by an adjustment operating element 24 of the device 2. 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CONSTITUTION: A photodiode 9 of an X-ray image intensifier, and electrodes 16-18 and anode parts 21, 22 of an electronic optical system are connected to a high-voltage generating device 2. The device 2 supplies an accelerating voltage and a braking voltage, suitable for the constituent parts and voltage for the electronic optical system. A photocathode 9 and a metallic casing part of the device 2 are placed at zero potential. As accelerating voltage, voltage of 30kV, for instance, is applied to a second anode part 22. The first anode part 21 is placed in a potential of 5-25kV, for instance, and is adjustable by an adjustment operating element 24 of the device 2. As a result, the electrons are braked in the region of an anode 10.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS DIAGNOSIS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY |
| title | X-RAY IMAGE AMPLIFICATION APPARATUS |
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