公开(公告)号：US3748513A

公开(公告)日：1973-07-24

申请号：US3748513D

申请日：1969-06-16

Applicant: VARIAN ASSOCIATES

Inventor： LEVIN M

IPC: H01J23/15 ,  H01J1/02 ,  H01J7/24 ,  H01J23/02

CPC classification number: H01J23/15

Abstract: A high frequency velocity modulated beam tube is disclosed having a beam collector structure insulated from the body of the tube. A high frequency conductive housing surrounds the insulator structure to prevent stray radiation from the tube. A wave energy attenuator is disposed in the housing to minimize excitation of high Q resonant modes in the housing. The attenuator comprises plural turns of a dielectric conduit having a cooling liquid flowing therethrough. In a preferred embodiment the conduit forms the attenuator which is cooled by the liquid. In another embodiment the coolant is lossy to form the attenuator.

Abstract translation: 公开了一种高频调速束管，其具有与管的主体绝缘的束收集器结构。 高频导电壳体围绕绝缘体结构以防止来自管的杂散辐射。 波形能量衰减器设置在壳体中以最小化壳体中的高Q谐振模式的激发。 衰减器包括具有流过其中的冷却液体的多匝电介质导管。 在优选实施例中，导管形成由液体冷却的衰减器。 在另一个实施例中，冷却剂是有损的以形成衰减器。

公开(公告)号：US3725721A

公开(公告)日：1973-04-03

申请号：US3725721D

申请日：1971-05-17

Applicant: VARIAN ASSOCIATES

Inventor： LEVIN M

IPC: H01J23/20 ,  H01J23/207 ,  H01J25/10

CPC classification number: H01J23/207

Abstract: A tunable high frequency velocity modulation beam tube has a plurality of floating resonators arranged along a beam path intermediate an input circuit and an output circuit for velocity modulating the beam to provide bunching of the beam at the output circuit. The cavity resonators are tunable over a relatively wide band for tuning the electronic bandwidth of the tube over a relative wide tunable band. A plurality of floating resonators are each loaded by a series resonant loading circuit with the Q''s and frequencies adjusted to provide a certain flat electronic bandwidth. The loading circuits are tuned and loaded such that the loss introduced into the floating resonators is frequency dependent over the tunable band of the tube in order to maintain the given electronic bandwidth over the tunable band of the tube.

Abstract translation: 可调高频调速束管具有沿输入电路中途的光束路径布置的多个浮动谐振器和用于速度调制光束的输出电路，以在输出电路处提供波束的聚束。 空腔谐振器可以在相对较宽的频带上调谐，用于在相对宽的可调谐频带上调谐管的电子带宽。 多个浮动谐振器各自由串联谐振负载电路加载，其中Q和频率被调整以提供一定的平坦电子带宽。 加载电路被调谐和加载，使得引入浮动谐振器的损耗在管的可调波段上是频率依赖性的，以便将给定的电子带宽保持在管的可调波段上。

公开(公告)号：US3806755A

公开(公告)日：1974-04-23

申请号：US25830572

申请日：1972-05-31

Applicant: VARIAN ASSOCIATES

Inventor： LIEN E ,  LEVIN M

IPC: H01J23/027 ,  H01J23/02

CPC classification number: H01J23/027

Abstract: The collector incorporates an impact surface portion at the downstream end for collecting substantially all the electrons in the electron beam. The impact surface portion closely approximates the locus of points equidistant from the constricted mouth portion of the collector. By this means amplitude modulation of the few secondary high-velocity reflected electrons returning from the collector and refocused back through the beam tunnel is reduced.

Abstract translation: 收集器在下游端并入有冲击表面部分，用于收集电子束中的所有电子。 冲击表面部分紧密接近与收集器的收缩口部等距离的点的轨迹。 通过这种方式，减少了从集电器返回并通过光束隧道重新聚焦的少数二次高速反射电子的幅度调制。

公开(公告)号：CA926952A

公开(公告)日：1973-05-22

申请号：CA109718

申请日：1971-04-06

Applicant: VARIAN ASSOCIATES

Inventor： LEVIN M

IPC: H01J23/00 ,  H01J23/207

Abstract: 1283324 Klystrons; cavity resonators VARIAN ASSOCIATES 19 April 1971 [13 April 1970] 26489/71 Headings HID and H1W A tuning arrangement for a cavity resonator 6 -e.g. of a klystron-includes an actuating member of a material of comparatively low coefficient of thermal expansion and a cooling structure for the tuning member which extends from the tuning member to the outside of the resonator, which is of a material having a substantially higher thermal conductivity than the material of the actuating member, and which is mounted for thermal expansion substantially independent of the actuating member, whereby to reduce temperature dependent tuning effects. As shown, a copper or alumminium cooling stem 65 and molybdenum or tungsten actuating rod 66 are brazed to a saddle-shaped tuning member 9, the actuating rod being axially adjustable by rotation of a shaft 38 with gears 37 and 68. The cooling stem 65 extends through the bellows 51 and an aperture 27 in the cavity wall, and has cooling fins 28 attached to its outer end. In a modified embodiment (Figs 2 and 3, not shown), the cooling structure is mounted within a hollow, cylindrical actuating member, and includes a central passage permitting cooling air to be pumped along a path bounded by the surface of the bellows 51.