公开(公告)号：AU2003235115A1

公开(公告)日：2003-11-10

申请号：AU2003235115

申请日：2003-04-24

Applicant: HAMAMATSU PHOTONICS KK

Inventor： ISHIKAWA MASAYOSHI ,  YOKOI TAKANE ,  NAKAMURA TSUTOMU ,  OCHIAI YUTAKA ,  TAKASE KINJI

IPC: H05G1/30 ,  H05G1/26

Abstract: An X-ray tube controller measures operation information (filament power supply time in an X-ray tube and a grid voltage value applied to grid electrodes to maintain the tube current value under a predetermined tube voltage). The information is transmitted to an X-ray tube operation information acquiring unit via a communication line. In a storage section of the information acquiring unit, a database written with degree of attrition corresponding to the integrated power supply time of a filament (reduction ratio of thermalelectron emission amount (tube current value at a predetermined G1 voltage) to the initial value (thermalelectron emission amount when the filament is first used) is stored. An attrition degree determination section determines the degree of attrition of the filament from the count of filament power supply time with reference to the database. Also, the attrition degree determination section determines the end of life from the G1 voltage value.

公开(公告)号：DE69423024T2

公开(公告)日：2000-09-14

申请号：DE69423024

申请日：1994-07-14

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA TSUTOMU ,  YOKOI TAKANE ,  OCHIAI YUTAKA ,  FURUKAWA MITSUMASA ,  KAWAKAMI HIROKI ,  MATSUSHITA TADAOKI ,  SAWADA HARUMOTO ,  SUZUKI TOSHIHIRO

IPC: H01J35/00 ,  H01J35/14 ,  H05G1/00 ,  H05G1/06 ,  H05G1/10 ,  H05G1/34 ,  H05G1/52 ,  H05G1/54

公开(公告)号：DE69930923T2

公开(公告)日：2007-01-11

申请号：DE69930923

申请日：1999-02-05

Applicant: HAMAMATSU PHOTONICS KK

Inventor： OKADA TOMOYUKI ,  ITO MASUO ,  NAKAMURA KIMITSUGU ,  ISHIHARA YOSHITOSHI ,  NAKAMURA TSUTOMU ,  INAZURU TUTOMU

IPC: H01J35/00 ,  H01J35/08 ,  H01J35/14 ,  H05G1/02

Abstract: A hood electrode attached to a tip portion of a target is provided with an electron passage port widening on the side opposite from an x-ray emitting window, so that electrons emitted from an electron gun are made incident on the front end face of a target at a position on the x-ray emission side, whereby the distance between the x-ray generating position and the x-ray emitting window can be shortened.

公开(公告)号：DE69930923D1

公开(公告)日：2006-05-24

申请号：DE69930923

申请日：1999-02-05

Applicant: HAMAMATSU PHOTONICS KK

Inventor： OKADA TOMOYUKI ,  ITO MASUO ,  NAKAMURA KIMITSUGU ,  ISHIHARA YOSHITOSHI ,  NAKAMURA TSUTOMU ,  INAZURU TUTOMU

IPC: H01J35/00 ,  H01J35/08 ,  H01J35/14 ,  H05G1/02

Abstract: A hood electrode attached to a tip portion of a target is provided with an electron passage port widening on the side opposite from an x-ray emitting window, so that electrons emitted from an electron gun are made incident on the front end face of a target at a position on the x-ray emission side, whereby the distance between the x-ray generating position and the x-ray emitting window can be shortened.

公开(公告)号：AU2003236269A1

公开(公告)日：2003-10-20

申请号：AU2003236269

申请日：2003-04-04

Applicant: HAMAMATSU PHOTONICS KK

Inventor： TAKASE KINJI ,  ISHIKAWA MASAYOSHI ,  YOKOI TAKANE ,  NAKAMURA TSUTOMU ,  OCHIAI YUTAKA

IPC: H05G1/46 ,  H05G1/32

Abstract: A maximum tube voltage value setting module 240a, a warming-up module 240b, a limit tube voltage control module 240c, a limit tube current control module 240d and a focus grid electrode control module 240e of an operation program 240 which respectively correspond to different maximum tube voltage values are stored in storage sections 32a-e of an X-ray tube control apparatus 3. When the maximum tube voltage value of an X-ray tube 1 is changed, an extraction section 34 extracts each module of the operation program 240 which corresponds to the maximum tube voltage value after being changed from the storage sections 32a-e. A communications section 36 sends the operation program 240 comprised of each extracted module to an X-ray tube controller 2 and overwrites it in a memory section 24.

公开(公告)号：AU2299699A

公开(公告)日：1999-08-23

申请号：AU2299699

申请日：1999-02-05

Applicant: HAMAMATSU PHOTONICS KK

Inventor： OKADA TOMOYUKI ,  ITO MASUO ,  NAKAMURA KIMITSUGU ,  ISHIHARA YOSHITOSHI ,  NAKAMURA TSUTOMU ,  INAZURU TUTOMU

IPC: H01J35/08 ,  H01J35/14 ,  H05G1/02

Abstract: A hood electrode attached to a tip portion of a target is provided with an electron passage port widening on the side opposite from an x-ray emitting window, so that electrons emitted from an electron gun are made incident on the front end face of a target at a position on the x-ray emission side, whereby the distance between the x-ray generating position and the x-ray emitting window can be shortened.

公开(公告)号：AU2003236267A1

公开(公告)日：2003-10-20

申请号：AU2003236267

申请日：2003-04-04

Applicant: HAMAMATSU PHOTONICS KK

Inventor： TAKASE KINJI ,  ISHIKAWA MASAYOSHI ,  YOKOI TAKANE ,  NAKAMURA TSUTOMU ,  OCHIAI YUTAKA

IPC: H05G1/26 ,  H05G1/32

Abstract: An initial image (the image of a slit plate 5 imaged when adjusted to an optimal focal diameter) is stored in a storage section 72 of an X-ray tube adjusting apparatus 7. An acquisition section 74 acquires a test image (the image of the slit plate 5 imaged at the time of adjusting the focal diameter). A presentation section 76 presents the initial image and an image representing the luminance on the initial image (showing a contrast DELTA a between a slit portion 764a and a residual area portion 766a in the initial image) and the test image and an image representing the luminance on the test image (showing a contrast DELTA b between a slit portion 764b and a residual area portion 766b in the initial image) simultaneously (in a comparable manner).

公开(公告)号：EP1501339A4

公开(公告)日：2009-11-04

申请号：EP03745699

申请日：2003-04-04

Applicant: HAMAMATSU PHOTONICS KK

Inventor： ISHIKAWA MASAYOSHI ,  YOKOI TAKANE ,  NAKAMURA TSUTOMU ,  OCHIAI YUTAKA ,  TAKASE KINJI

IPC: H05G1/26 ,  H05G1/32

CPC classification number: H05G1/26

公开(公告)号：DE69423024D1

公开(公告)日：2000-03-23

申请号：DE69423024

申请日：1994-07-14

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA TSUTOMU ,  YOKOI TAKANE ,  OCHIAI YUTAKA ,  FURUKAWA MITSUMASA ,  KAWAKAMI HIROKI ,  MATSUSHITA TADAOKI ,  SAWADA HARUMOTO ,  SUZUKI TOSHIHIRO

IPC: H01J35/00 ,  H01J35/14 ,  H05G1/00 ,  H05G1/06 ,  H05G1/10 ,  H05G1/34 ,  H05G1/52 ,  H05G1/54

公开(公告)号：EP1496726A4

公开(公告)日：2009-09-02

申请号：EP03745700

申请日：2003-04-04

Applicant: HAMAMATSU PHOTONICS KK

Inventor： ISHIKAWA MASAYOSHI ,  YOKOI TAKANE ,  NAKAMURA TSUTOMU ,  OCHIAI YUTAKA ,  TAKASE KINJI

IPC: H05G1/46 ,  H05G1/32

CPC classification number: H05G1/46

Abstract: An X-ray tube control apparatus (3) has storage units (32a to e) containing a maximum tube voltage value set module (240a), a worming-up module (240b), a limit tube voltage control module (240c), a limit tube current control module (240d), and a focus grid electrode control module (240e) of an operation program (240) corresponding to different maximum tube voltage values. When the maximum tube voltage value of the X-ray tube (1) is modified, an extraction unit (34) extracts modules of the operation program (240) corresponding to the maximum tube voltage value after modification. A communication unit (36) transmits the operation program (240) consisting of the extracted modules to an X-ray tube controller (2) and overwrites it in a storage unit (24).