Degassing arrangement for electron beam tube including an mk dispenser cathode
    81.
    发明授权
    Degassing arrangement for electron beam tube including an mk dispenser cathode 失效
    电子束管的排气装置,包括MK分配器阴极

    公开(公告)号:US3688150A

    公开(公告)日:1972-08-29

    申请号:US3688150D

    申请日:1968-09-27

    Applicant: SIEMENS AG

    Inventor: WINTZER MANFRED

    CPC classification number: H01J41/16 H01J7/18 H01J7/183 H01J41/12 H01J41/20

    Abstract: Method and apparatus for producing electrodes capable of receiving considerable cathode bombardment and which are formed so as to remove gas from an electron tube, are disclosed. The electrodes are formed by powdered metallurgy by mixing getter material powders such as zirconium, titanium or other getter material powders with carbon powder such as graphite and then forming the electrodes by pressing the mixture into a mold with a small amount of pressure and sintering in the range, for example, of 800* to 1,400* centigrade to produce the electrodes which have good gas absorption capability and which can be worked with little difficulty.

    Abstract translation: 公开了用于制造能够接收相当大的阴极轰击并且形成为从电子管中除去气体的电极的方法和装置。 电极通过粉末冶金形成,通过将诸如锆,钛或其它吸气材料粉末的吸气剂材料粉末与碳粉末如石墨混合,然后通过将混合物压入少量压力的模具中形成电极,并在 例如在800〜1400℃的范围内,制造具有良好吸气能力的电极,可以很难进行加工。

    Sublimation pump and method of regulating it
    82.
    发明授权
    Sublimation pump and method of regulating it 失效
    下水泵及其调节方法

    公开(公告)号:US3609063A

    公开(公告)日:1971-09-28

    申请号:US3609063D

    申请日:1970-03-06

    Applicant: HULL CORP

    CPC classification number: G05D5/03 H01J7/18

    Abstract: In a sublimation pump the cooled gas-adsorbing metal surface of the pump cylinder and a heated metal filament are made the anode and cathode, respectively, of a space-charged limited current diode which is included in a bridge circuit for detection of changes in its current-voltage characteristics. Potential differences across the bridge circuit resulting from changes in extent of adsorption of gas and deposition of vaporizable metal on the anode are amplified and utilized to control the source which effects heating of the vaporizable metal in the cylinder.

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