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    一种电子发射装置以及电子装置
    3.
    发明公开
    一种电子发射装置以及电子装置 审中-实审

    公开(公告)号：CN114512378A

    公开(公告)日：2022-05-17

    申请号：CN202210152727.6

    申请日：2022-02-18

    Applicant: 西湖大学

    Inventor： 李西军

    IPC: H01J1/06 ,  H01J1/10 ,  H01J1/05

    Abstract: 本公开实施例提出一种电子发射装置以及电子装置，所述电子发射装置包括耐火容器以及加热电源，所述耐火容器具有一空腔部，所述空腔部具有一定真空度，在所述空腔部中设置电子发射材料，在所述耐火容器的底部设置至少一个通孔，所述电子发射材料受热熔化后穿过所述通孔形成具有弧形的外凸液面并向外实现电子发射。本公开实施例具有较高的电子的场发射效果，产品结构一致性程度高，调试容易，电子发射装置的寿命和容纳的电子发射材料质量成正比，使得公开的电子装置寿命可以比传统的热场发射和冷场发射灯丝寿命有显著延长,可以满足电子束曝光机、扫描电镜、透射电镜和其他X光源的应用。

    Metallstrahlröntgenröhre
    6.
    发明专利
    Metallstrahlröntgenröhre 未知

    公开(公告)号：DE102014226813A1

    公开(公告)日：2016-06-23

    申请号：DE102014226813

    申请日：2014-12-22

    Applicant: SIEMENS AG

    Inventor： HEID OLIVER

    IPC: H01J35/06 ,  H01J1/05

    Abstract: Es wird eine Metallstrahlröntgenröhre vorgeschlagen, die weniger als konventionelle Röhren vom Problem der Leistungsdichte im Auftreffpunkt des Elektronenstrahls auf der Anodenkomponente betroffen sind. Die Metallstrahlröntgenröhre stellt hierzu als Anodenkomponente (7) einen soweit dünnen Metallstrahl (6) zur Verfügung, dass durch diesen Metallstrahl (6) ein darauf auftreffender Elektronenstrahl (4) nur teilweise abgebremst wird. Desweiteren ist als Kathodenkomponente (3) eine Messerschneidekathode vorgesehen mit einer mit einer geringen Neigung abwärts in Richtung flüssiger Metallstrahl (6) der Anodenkomponente (7) zeigenden Kathodenschneide (10).

    8.
    发明专利
    未知

    公开(公告)号：DE1640234A1

    公开(公告)日：1970-08-13

    申请号：DEG0050505

    申请日：1967-06-28

    Applicant: GEN ELECTRIC

    Inventor： HUBBARD HORN FORDYCE

    IPC: H01H33/66 ,  H01H1/02 ,  H01H1/025 ,  H01H33/664 ,  H01J9/385 ,  H01J1/05

    Abstract: 1,148,978. Spark gaps; vacuum switches. GENERAL ELECTRIC CO. 1 May, 1967 [1 July, 1966], No. 19922/67. Headings H1D and H1N. [Also in Division C7] In a vacuum gap device evacuated to a pressure of 10 -4 mm. Hg or less, evolution of oxygen from the primary arc electrodes, at least portions of which comprise as a major constituent a non-refractory electrically conductive material of high vapour pressure, e.g. Cu, is prevented by incorporating in the electrodes a minor constituent having a high affinity for oxygen, and forming therewith a high-temperature stable oxide, e.g. Be or a rare earth, to form an alloy with the Cu. The device may have one fixed and one movable electrode (Fig. 1, not shown) or may have two fixed electrodes, one of which incorporates a trigger assembly (Fig. 2, not shown). The envelope may comprise a cylinder of glass, alumina or forsterite ceramic with end caps of stainless steel, nickel or titanium supporting the electrodes which are surrounded by a metal, e.g. stainless steel, shield.

    10.
    发明专利
    未知

    公开(公告)号：DE3855244D1

    公开(公告)日：1996-06-05

    申请号：DE3855244

    申请日：1988-02-16

    Applicant: NEC CORP

    Inventor： ICHIYOSHI OSAMU

    IPC: H03H17/02 ,  H04J1/05 ,  H01J1/05 ,  H04J4/00

    Abstract: An N-channel FDM signal is converted into complex signals of baseband frequencies (1-6) spaced at intervals equal to frequency DELTA f. The complex baseband signals are converted first into digital samples (7-9)having a frequency N DELTA f and then into N parallel digital signals (11). A plurality of first FIR subfilters (17-1 through 17-N) respectively perform filtering on each of the parallel digital signals at frequency DELTA f to produce a first series of filtered digital signals from each of the first FIR subfilters, and (m - 1) groups of second FIR subfilters respectively perform filtering on each of the parallel digital signals at frequency DELTA f to produce a second series of filtered digital samples from each of the second FIR subfilters at timing displaced with respect to the first series by a/m DELTA f, where is an integer ranging from unity to (m - 1) and m is an integer equal to or greater than 2. Outputs of the first FIR subfilters are combined with outputs of the second FIR subfilters to produce N summation outputs at frequency m DELTA f. An N-point Fast Fourier Transform processor (14) performs fast Fourier transform on the N summation outputs at frequency m DELTA f to derive digital channels. Because of the oversampling at frequency m DELTA f, each of the digital channels has a frequency response which can be made flat over the bandwidth DELTA f.

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