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JPS54142990A - X-ray tube - Google Patents

X-ray tube

Info

Publication number
JPS54142990A
JPS54142990A JP4982778A JP4982778A JPS54142990A JP S54142990 A JPS54142990 A JP S54142990A JP 4982778 A JP4982778 A JP 4982778A JP 4982778 A JP4982778 A JP 4982778A JP S54142990 A JPS54142990 A JP S54142990A
Authority
JP
Japan
Prior art keywords
hood
cathode
anode
target
discharge along
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4982778A
Other languages
Japanese (ja)
Other versions
JPS5923063B2 (en
Inventor
Shigeru Tachiki
Minoru Kizuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4982778A priority Critical patent/JPS5923063B2/en
Publication of JPS54142990A publication Critical patent/JPS54142990A/en
Publication of JPS5923063B2 publication Critical patent/JPS5923063B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a relatively-small focus and to eliminate discharge along a surface by constituting a part adjacent to the cathode of a hood by an insulator when providing a fixed anode with the hood, of nearly the same outer diameter as the anode, projecting in the cathode direction.
CONSTITUTION: In glass bulb 5, cathode 4 provided with filament 3 and fixed anode 1 with target 8 opposite to it are both arranged. Then, cylindrical hood 9 projecting toward cathode 4 surrounding target 8 is fitted to the tip of anode 1 through brazing part 7. To form this hood 9, hood 9 is formed of cylindrical metal, a window with embeded beryllium plate 6 serving for a X-ray path is provided to one flank, and the tip cylinder connecting to it is made of an inorganic insulator such as ceramic high in heat resistance. Consequently, the electrostatic divergent lens produced between target 8 and cathode 4 is reduced so as to make the focus small while discharge along the surface is also lessened, so that the bulb damage will become less.
COPYRIGHT: (C)1979,JPO&Japio
JP4982778A 1978-04-28 1978-04-28 x-ray tube Expired JPS5923063B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4982778A JPS5923063B2 (en) 1978-04-28 1978-04-28 x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4982778A JPS5923063B2 (en) 1978-04-28 1978-04-28 x-ray tube

Publications (2)

Publication Number Publication Date
JPS54142990A true JPS54142990A (en) 1979-11-07
JPS5923063B2 JPS5923063B2 (en) 1984-05-30

Family

ID=12841917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4982778A Expired JPS5923063B2 (en) 1978-04-28 1978-04-28 x-ray tube

Country Status (1)

Country Link
JP (1) JPS5923063B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004053A1 (en) * 1981-05-18 1982-11-25 Shiga Akinobu Process for producing propylene polymer or copolymer
JP2006288915A (en) * 2005-04-14 2006-10-26 Alcare Co Ltd Foot cover for orthopedics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004053A1 (en) * 1981-05-18 1982-11-25 Shiga Akinobu Process for producing propylene polymer or copolymer
JP2006288915A (en) * 2005-04-14 2006-10-26 Alcare Co Ltd Foot cover for orthopedics

Also Published As

Publication number Publication date
JPS5923063B2 (en) 1984-05-30

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