公开(公告)号：US4931704A

公开(公告)日：1990-06-05

申请号：US281679

申请日：1988-12-09

Applicant: Robert R. Alfano ,  Ardie D. Walser

Inventor： Robert R. Alfano ,  Ardie D. Walser

IPC: G01R13/34 ,  H01J43/08 ,  H01J43/30

CPC classification number: H01J43/30 ,  G01R13/34 ,  H01J43/08

Abstract: A femtosecond sampling oscilloscope includes a femtosecond laser for generating a pulse of light in the femtosecond range and a beam splitter for splitting the pulse of light into pulses traveling along first and second beam paths. A photoconductive switch disposed along the first beam path is used to produce an electrical stimulus output at a first output port, an electrical pulse output at a second output port and an optical output at a third output port. A photomultiplier tube having a strip line photocathode receives the pulse of light traveling along the first beam path. An input port is coupled to the photocathode. In use, the output signal at one of the output ports is connected to a test device producing a test voltage signal which is applied to the input port. When the test voltage signal and the light pulse traveling along the second path intersect on the photocathode in space and time, an electrical signal output is produced at the photomultiplier tube. The output is processed and/or stored in a computer and then, when desired, displayed on a cathode ray tube.

Abstract translation: 飞秒采样示波器包括用于产生飞秒范围内的脉冲的飞秒激光器，以及用于将光脉冲分成沿第一和第二光束路径行进的脉冲的分束器。 沿着第一光束路径设置的感光开关用于在第一输出端口处产生电刺激输出，在第二输出端口处产生电脉冲输出，在第三输出端口产生光输出。 具有带状光电阴极的光电倍增管接收沿着第一光束路径行进的光的脉冲。 输入端口耦合到光电阴极。 在使用中，其中一个输出端口处的输出信号连接到产生测试电压信号的测试设备，该测试电压信号被施加到输入端口。 当测试电压信号和沿着第二路径行进的光脉冲在空间和时间上在光电阴极上相交时，在光电倍增管处产生电信号输出。 将输出处理和/或存储在计算机中，然后在需要时显示在阴极射线管上。

公开(公告)号：US4687921A

公开(公告)日：1987-08-18

申请号：US661219

申请日：1984-10-15

Applicant: Hannu Kojola

Inventor： Hannu Kojola

IPC: G01J1/02 ,  H01J43/08 ,  H01J43/28 ,  H01J40/14

CPC classification number: H01J43/08 ,  H01J43/28

Abstract: A photomultiplier used in liquid scintillation counting has an envelope, a base, an anode, a curved dynode structure and a photocathode. A specimen is inserted in a measuring area of the envelope for liquid scintillation counting. The photocathode has a concave surface, so that the specimen is encircled by the photocathode as completely as possible. The photocathode is positioned at a concave window of the envelope, so that a maximum number of photons directly impinge on the photocathode.

Abstract translation: 用于液体闪烁计数的光电倍增管具有外壳，基底，阳极，弯曲的倍增极结构和光电阴极。 将样品插入信封的测量区域用于液体闪烁计数。 光电阴极具有凹面，使得样品尽可能完全地被光电阴极包围。 光电阴极位于外壳的凹窗处，使得最大数量的光子直接照射在光电阴极上。

公开(公告)号：US3777209A

公开(公告)日：1973-12-04

申请号：US3777209D

申请日：1972-05-17

Applicant: RCA CORP

Inventor： MCDONIE A ,  FAULKNER R ,  RHOADS J

IPC: H01J43/20 ,  H01J1/30 ,  H01J1/308 ,  H01J1/32 ,  H01J1/34 ,  H01J40/06 ,  H01J43/08 ,  H01J1/13 ,  H01J1/14 ,  H01J19/06

CPC classification number: H01J40/06 ,  H01J43/08

Abstract: A non-thermionic electron emissive tube of the type comprising an evacuated envelope, an electron emissive cathode assembly in the envelope, and a collector anode for electrons emitted from the emissive layer. The cathode assembly comprises a thin ceramic substrate. On one face of the substrate is a non-thermionic cathode. On the opposite surface is a heater pattern of resistive metallizing.

Abstract translation: 包括真空外壳，外壳中的电子发射阴极组件和从发射层发射的电子的集电极的类型的非热离子电子发射管。 阴极组件包括薄陶瓷衬底。 在衬底的一个面上是非热离子阴极。 相反的表面是电阻金属化的加热器图案。

公开(公告)号：US3555281A

公开(公告)日：1971-01-12

申请号：US3555281D

申请日：1968-02-12

Applicant: ALEXEI PETROVICH SKIBARKO ,  KAREN ANDRANIKOVICH GULGAZARYA

Inventor： SKIBARKO ALEXEI PETROVICH ,  GULGAZARYAN KAREN ANDRANIKOVIC

IPC: G02F2/00 ,  H01J3/02 ,  H01J40/02 ,  H01J43/08 ,  H01J39/14

CPC classification number: H01J3/021 ,  G02F2/00 ,  H01J40/02 ,  H01J43/08 ,  H01J2201/342

Abstract: A photocell receiver is provided on the outer surface thereof in front of its light-sensitive surface with at least one electrode capable of transmitting luminous radiation, the electrode being positioned so that when supplied with an alternating voltage it produces an alternating electric field which penetrates through the light-sensitive surface to affect photoelectrons thereon.

公开(公告)号：US3474276A

公开(公告)日：1969-10-21

申请号：US3474276D

申请日：1968-01-15

Applicant: MICHEL BETOULE ,  PIERRE L HERMITE ,  PETIT RENE

Inventor： BETOULE MICHEL ,  HERMITE PIERRE L ,  PETIT RENE

IPC: H01J43/08 ,  H01J43/20 ,  H01J43/18

CPC classification number: H01J43/20 ,  H01J43/08

公开(公告)号：US3243626A

公开(公告)日：1966-03-29

申请号：US21032462

申请日：1962-07-17

Applicant: RCA CORP

Inventor： ANDERSON HELVY FRED ,  MACPHERSON MATHESON ROBERT

IPC: H01J43/08

CPC classification number: H01J43/08

公开(公告)号：US2908840A

公开(公告)日：1959-10-13

申请号：US53188155

申请日：1955-09-01

Applicant: RCA CORP

Inventor： ANDERSON ROBERT H

IPC: H01J43/08

CPC classification number: H01J43/08

公开(公告)号：US2521133A

公开(公告)日：1950-09-05

申请号：US8566849

申请日：1949-04-05

Applicant: SNELL ARTHUR H ,  URI MILLER

Inventor： SNELL ARTHUR H ,  URI MILLER

IPC: H01J43/08

CPC classification number: H01J43/08

公开(公告)号：US2392155A

公开(公告)日：1946-01-01

申请号：US34262540

申请日：1940-06-27

Applicant: RCA CORP

Inventor： ROSS KILGORE GEORGE

IPC: H01J43/08

CPC classification number: H01J43/08 ,  Y10S164/04

公开(公告)号：US2216267A

公开(公告)日：1940-10-01

申请号：US20584238

申请日：1938-05-03

Applicant: FIRM FERNSEH AKTIEN GES

Inventor： WERNER FLECHSIG

IPC: H01J43/08 ,  H01J43/28 ,  H04R1/02 ,  H04R9/02 ,  H04R9/04

CPC classification number: H04R1/025 ,  H01J43/08 ,  H01J43/28 ,  H04R9/02 ,  H04R9/04