公开(公告)号：US3787759A

公开(公告)日：1974-01-22

申请号：US3787759D

申请日：1972-11-20

Applicant: AVCO CORP

Inventor： DOUGLAS HAMILTON D

IPC: G01N27/66 ,  H01S3/036 ,  G01R31/22

CPC classification number: G01N27/66 ,  H01S3/036

Abstract: A method of and apparatus for determining the gas purity in gas lasers comprising means for producing free electrons or ionization as by a broad electron beam or the like in combination with further means for producing an electrical sustainer field, wherein in the presence of the sustainer field the production of free electrons or ionization is sharply terminated and the previously flowing sustainer field current is measured, the decay characteristics of the sustainer field current after termination of the production of free electrons being indicative of the presence or absence of substances adversely affecting the electron number density.

Abstract translation: 一种用于确定气体激光器中的气体纯度的方法和装置，包括用于通过宽电子束等产生自由电子或电离的装置，以及用于产生电气持续场的另外的装置，其中在存在持续场的情况下 自由电子或离子化的产生被急剧地终止，并且测量了先前流动的持续场电流，自由电子产生终止后的维持场电流的衰减特性表示存在或不存在不利地影响电子数的物质 密度。

公开(公告)号：US3749967A

公开(公告)日：1973-07-31

申请号：US3749967D

申请日：1971-12-23

Applicant: AVCO CORP

Inventor： DOUGLAS HAMILTON D ,  PUGH E

IPC: H01J37/06 ,  H01J33/00 ,  H01S3/03 ,  H01S3/09 ,  H01S3/097 ,  H05H5/00 ,  H05H7/08 ,  H01J1/52

CPC classification number: H01S3/09707 ,  H01J33/00

Abstract: An electron beam discharge device for transmitting from the evacuated interior of the device a broad area electron beam through an electron window to a region of higher pressure outside the device. Electron emission means are disposed in an enclosure effective to shield the electron emission means from external electrical influences. Grid means at a high negative potential is disposed between the electron emission means and the electron window to effect the transmission through the electron window of electrons received from the electron emission means through the grid means. The electron window may be carried by an evacuated enclosure which may or may not be at ground potential. Spacecharge limited emission together with alignment of parts insure maximum uniformity of the beam.

Abstract translation: 一种电子束放电装置，用于从装置的抽空的内部将宽范围的电子束通过电子窗传送到装置外部的较高压力区域。 电子发射装置设置在有效地屏蔽电子发射装置免受外部电影响的外壳中。 在电子发射装置和电子窗口之间设置高电位的栅极装置，以通过栅格装置实现从电子发射装置接收的电子的电子窗口的透射。 电子窗可以由可能或可能不处于地电位的抽真空的外壳承载。 空间电荷有限的发射与部件的对准确保了光束的最大均匀性。