FIELD: vacuum technology.
SUBSTANCE: invention can be used in various vacuum devices to maintain a high vacuum. The X-ray tube cathode consists of a cathode cup made of a non-evaporable metal-porous gas-absorbing material, a focusing electrode, emitters placed in the mounting grooves of the cathode cup and fixed on current leads mounted in ceramic bushings placed in seats made in the cathode cup. The cathode cup may be provided with one or more metal and ceramic elements.
EFFECT: ability to effectively use the heat of the emitters to implement the process of high-temperature outgassing of the getter, increase the sorption capacity of the getter, increase the time of maintaining the operating vacuum in the X-ray tube, simplify the design of the X-ray tube cathode by combining the functions of its elements.
3 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| X-RAY TUBE CATHODE | 2022 |
|
RU2795517C1 |
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|
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| X-RAY TUBE CATHODE | 2020 |
|
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| CATHODE OF X-RAY TUBE | 2013 |
|
RU2530533C1 |
| HIGH-RESOURCE METAL-CERAMIC X-RAY TUBE | 2019 |
|
RU2716261C1 |
| SINTERED NON-EVAPORATING GETTER | 2012 |
|
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| METHOD FOR PRODUCING NON-EVAPORABLE GETTER | 2015 |
|
RU2620234C2 |
| GAS LASER | 0 |
|
SU774500A1 |
| METHOD OF MATERIAL SPRAYING SPEED CONTROL IN A GETTER PUMP AND A GETTER PUMP DEVICE | 2017 |
|
RU2661493C1 |
| COATING PRODUCED OUT OF THE GETTER-METAL ALLOY, AND ALSO THE INSTALLATION AND THE METHOD OF THE COATING PRODUCTION | 2003 |
|
RU2315819C2 |
