公开(公告)号：DE69304603D1

公开(公告)日：1996-10-17

申请号：DE69304603

申请日：1993-05-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  OKAMOTO TAKEHISA ,  NAKAMURA MAKOTO ,  YAMAGUCHI HARUHISA

IPC: H01J43/20 ,  H01J43/06

Abstract: An electron multiplier according to this invention comprises dynodes DY1 SIMILAR DY16 arranged in multi-stages along a direction of incidence of an energy beam for, upon incidence of the energy beam, gradually multiplying secondary electrons to emit the same, a collection electrode A for receiving electrons emitted from that of the dynodes on a last stage, and resistors R1 SIMILAR R16 inserted between the respective dynodes and their adjacent ones, the dynodes, the collecting electrode, and the resistors being mounted between two support plates 10a, 10b disposed in parallelism with each other, the resistors being arranged in two rows which sandwich the dynodes.

公开(公告)号：DE69304250T2

公开(公告)日：1997-01-30

申请号：DE69304250

申请日：1993-05-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  OKAMOTO TAKEHISA ,  NAKAMURA MAKOTO ,  YAMAGUCHI HARUHISA ,  MORITA TETSUYA

IPC: H01J43/04 ,  H01J43/28

Abstract: The electron multiplying device according to this invention comprises an electron multiplying unit (E) including dynodes arranged in a plurality of stages. The electron multiplying unit has an incidence opening (21) for an energy beam to be multiplied to enter through, and has the proximal end secured to a base (13). There is provided a casing (16) for housing the electron multiplying unit. The forward edge of the casing is secured to the base (13), and a space defined by the base and the casing houses the electron multiplying unit. The casing has an entrance window (26) formed at a position opposed to the incidence opening (21). Energy beams enter the electron multiplying unit through the entrance window (26), but the electron multiplying unit itself is housed in the casing to be protected from surrounding air flow and unnecessary energy beams not to be measured.

公开(公告)号：DE69304603T2

公开(公告)日：1997-02-06

申请号：DE69304603

申请日：1993-05-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  OKAMOTO TAKEHISA ,  NAKAMURA MAKOTO ,  YAMAGUCHI HARUHISA

IPC: H01J43/20 ,  H01J43/06

Abstract: An electron multiplier according to this invention comprises dynodes DY1 SIMILAR DY16 arranged in multi-stages along a direction of incidence of an energy beam for, upon incidence of the energy beam, gradually multiplying secondary electrons to emit the same, a collection electrode A for receiving electrons emitted from that of the dynodes on a last stage, and resistors R1 SIMILAR R16 inserted between the respective dynodes and their adjacent ones, the dynodes, the collecting electrode, and the resistors being mounted between two support plates 10a, 10b disposed in parallelism with each other, the resistors being arranged in two rows which sandwich the dynodes.

公开(公告)号：DE69304250D1

公开(公告)日：1996-10-02

申请号：DE69304250

申请日：1993-05-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  OKAMOTO TAKEHISA ,  NAKAMURA MAKOTO ,  YAMAGUCHI HARUHISA ,  MORITA TETSUYA

IPC: H01J43/04 ,  H01J43/28

Abstract: The electron multiplying device according to this invention comprises an electron multiplying unit (E) including dynodes arranged in a plurality of stages. The electron multiplying unit has an incidence opening (21) for an energy beam to be multiplied to enter through, and has the proximal end secured to a base (13). There is provided a casing (16) for housing the electron multiplying unit. The forward edge of the casing is secured to the base (13), and a space defined by the base and the casing houses the electron multiplying unit. The casing has an entrance window (26) formed at a position opposed to the incidence opening (21). Energy beams enter the electron multiplying unit through the entrance window (26), but the electron multiplying unit itself is housed in the casing to be protected from surrounding air flow and unnecessary energy beams not to be measured.

公开(公告)号：JPH05325879A

公开(公告)日：1993-12-10

申请号：JP12770292

申请日：1992-05-20

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  NAKAMURA MAKOTO ,  OKAMOTO TAKEHISA ,  YAMAGUCHI HARUHISA ,  MORITA AKIIE

IPC: H01J43/04 ,  H01J43/28

Abstract: PURPOSE:To provide a photomultiplier tube having sufficient strength and easy to handle and to prevent energy beams useless for measurement from entering the tube. CONSTITUTION:A support members 10a, 10b for supporting a dynode DY, a collecting electrode A and the resistor R of a voltage divider circuit, all of which are basic component members of a photomultiplier tube, is fixed to a pedestal 13 having sufficient rigidity and a case 16 having an opening 26 for receiving energy beams is mounted on the pedestal 13 in order to enclose the above members. The case 16 protects the dynode DY, etc., from influences from the outside.

公开(公告)号：JPH05325878A

公开(公告)日：1993-12-10

申请号：JP12769092

申请日：1992-05-20

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  NAKAMURA MAKOTO ,  OKAMOTO TAKEHISA ,  YAMAGUCHI HARUHISA

IPC: H01J43/20 ,  H01J43/06

Abstract: PURPOSE:To shorten a photomultiplier tube which has resistors connected between a collecting electrode for receiving electrons released from a dynode of the last stage and each dynode by installing support plates for making the collecting electrode and each dynode parallel to each other, and arranging the resistors in two lines in such a manner that the dynodes are sandwiched therebetween. CONSTITUTION:A metallic plate 18 is mounted between the upper end portions of support plates 10a, 10b and is provided with an opening 19 facing the energy beam inlet of a dynode DY1 of the first stage and the dynode DY1 is connected to the metallic plate 18 so that the metallic plate 18 functions as both a shield and a reinforcing material for a photomultiplier tube. An earthed hermetic seal and other similar terminals 21, 22 are provided on a pedestal 14 and the terminal 21 is connected to the protruding piece of the dynode DY1 by a lead wire and the terminal 22 is connected to a collecting electrode A using a lead wire. Resistors R1-R16 are arranged in two lines and then the length of the photomultiplier tube is about half of that when the resistances are arranged in a line, and the lead wires L are held by the support plates 10a, 10b so that the resistors are not shaken.

公开(公告)号：JPH08162309A

公开(公告)日：1996-06-21

申请号：JP29725794

申请日：1994-11-30

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SAKAI SHIRO ,  NAKAMURA MAKOTO ,  SUZUKI HIROSHI ,  WADA KAZUAKI ,  KUSHIMA HIROYUKI ,  MORITA TETSUYA

IPC: H05K1/16 ,  H01C1/16 ,  H01C13/00 ,  H01C13/02 ,  H01J43/04

Abstract: PURPOSE: To provide a resistor capable of reducing an installation space, and easy to handle. CONSTITUTION: For obtaining a resistor 10, a number of metal conductors U are formed on a ceramic substrate 11, and resistance film substances R9, R12-R19, etc., are formed between them. A specified resistance value is provided between respective metal conductors U. One end of each metal conductor U is connected to a lead wire L in an insertion hole 12, and the other end of the extending lead wire L is connected to a corresponding dynode, etc., and used.