IT953614B - Tubo a raggi x ad emissione di campo - Google Patents
Tubo a raggi x ad emissione di campoInfo
- Publication number
- IT953614B IT953614B IT22800/72A IT2280072A IT953614B IT 953614 B IT953614 B IT 953614B IT 22800/72 A IT22800/72 A IT 22800/72A IT 2280072 A IT2280072 A IT 2280072A IT 953614 B IT953614 B IT 953614B
- Authority
- IT
- Italy
- Prior art keywords
- ray tube
- field emission
- emission
- field
- ray
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/065—Field emission, photo emission or secondary emission cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/22—X-ray tubes specially designed for passing a very high current for a very short time, e.g. for flash operation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US131881A US3883760A (en) | 1971-04-07 | 1971-04-07 | Field emission x-ray tube having a graphite fabric cathode |
Publications (1)
Publication Number | Publication Date |
---|---|
IT953614B true IT953614B (it) | 1973-08-10 |
Family
ID=22451421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22800/72A IT953614B (it) | 1971-04-07 | 1972-04-01 | Tubo a raggi x ad emissione di campo |
Country Status (5)
Country | Link |
---|---|
US (1) | US3883760A (it) |
DE (1) | DE2216119A1 (it) |
FR (1) | FR2132696A1 (it) |
IT (1) | IT953614B (it) |
SU (1) | SU433698A3 (it) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970884A (en) * | 1973-07-09 | 1976-07-20 | Golden John P | Portable X-ray device |
US4012656A (en) * | 1974-12-09 | 1977-03-15 | Norman Ralph L | X-ray tube |
JPS5451776A (en) * | 1977-10-03 | 1979-04-23 | Nippon Hoso Kyokai <Nhk> | Gas discharge display panel |
DE2810736A1 (de) * | 1978-03-13 | 1979-09-27 | Max Planck Gesellschaft | Feldemissionskathode sowie herstellungsverfahren und verwendung hierfuer |
US4289969A (en) * | 1978-07-10 | 1981-09-15 | Butler Greenwich Inc. | Radiation imaging apparatus |
US4379977A (en) * | 1979-07-31 | 1983-04-12 | State Of Israel, Rafael Armament Development Authority, Ministry Of Defense | Space-discharge electronic device particularly useful as a flash X-ray tube |
US4417175A (en) * | 1981-05-15 | 1983-11-22 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Ion sputter textured graphite electrode plates |
US4670894A (en) * | 1985-05-20 | 1987-06-02 | Quantum Diagnostics Ltd. | X-ray source employing cold cathode gas discharge tube with collimated beam |
FR2623330A1 (fr) * | 1987-11-17 | 1989-05-19 | Comp Generale Electricite | Generateur d'electrons energetiques dans un gaz |
US5079476A (en) * | 1990-02-09 | 1992-01-07 | Motorola, Inc. | Encapsulated field emission device |
FR2668296B1 (fr) * | 1990-10-17 | 1996-08-23 | Saint Louis Inst | Source de rayons x et procede de detection d'objets mobiles utilisant cette source. |
US5442677A (en) * | 1993-10-26 | 1995-08-15 | Golden; John | Cold-cathode x-ray emitter and tube therefor |
US5602439A (en) * | 1994-02-14 | 1997-02-11 | The Regents Of The University Of California, Office Of Technology Transfer | Diamond-graphite field emitters |
US5578901A (en) * | 1994-02-14 | 1996-11-26 | E. I. Du Pont De Nemours And Company | Diamond fiber field emitters |
US5975975A (en) * | 1994-09-16 | 1999-11-02 | Micron Technology, Inc. | Apparatus and method for stabilization of threshold voltage in field emission displays |
US6417605B1 (en) | 1994-09-16 | 2002-07-09 | Micron Technology, Inc. | Method of preventing junction leakage in field emission devices |
TW289864B (it) | 1994-09-16 | 1996-11-01 | Micron Display Tech Inc | |
WO1997007740A1 (en) | 1995-08-24 | 1997-03-06 | Interventional Innovations Corporation | X-ray catheter |
US6377846B1 (en) | 1997-02-21 | 2002-04-23 | Medtronic Ave, Inc. | Device for delivering localized x-ray radiation and method of manufacture |
US6020677A (en) * | 1996-11-13 | 2000-02-01 | E. I. Du Pont De Nemours And Company | Carbon cone and carbon whisker field emitters |
DE69823406T2 (de) * | 1997-02-21 | 2005-01-13 | Medtronic AVE, Inc., Santa Rosa | Röntgenvorrichtung versehen mit einer Dehnungsstruktur zur lokalen Bestrahlung des Inneren eines Körpers |
FR2764731A1 (fr) * | 1997-06-13 | 1998-12-18 | Commissariat Energie Atomique | Tube a rayons x comportant une source d'electrons a micropointes et des moyens de focalisations magnetique |
US5854822A (en) * | 1997-07-25 | 1998-12-29 | Xrt Corp. | Miniature x-ray device having cold cathode |
US6108402A (en) * | 1998-01-16 | 2000-08-22 | Medtronic Ave, Inc. | Diamond vacuum housing for miniature x-ray device |
US6069938A (en) * | 1998-03-06 | 2000-05-30 | Chornenky; Victor Ivan | Method and x-ray device using pulse high voltage source |
US6400069B1 (en) | 1998-07-22 | 2002-06-04 | Robert Espinosa | E-M wave generation using cold electron emission |
US6064718A (en) * | 1998-09-29 | 2000-05-16 | The United States Of America As Represented By The Secretary Of The Navy | Field emission tube for a mobile X-ray unit |
US6289079B1 (en) | 1999-03-23 | 2001-09-11 | Medtronic Ave, Inc. | X-ray device and deposition process for manufacture |
US6353658B1 (en) | 1999-09-08 | 2002-03-05 | The Regents Of The University Of California | Miniature x-ray source |
US6469436B1 (en) * | 2000-01-14 | 2002-10-22 | Micron Technology, Inc. | Radiation shielding for field emitters |
US7809115B2 (en) * | 2008-09-09 | 2010-10-05 | The United States Of America As Represented By The Secretary Of The Navy | Diode for flash radiography |
WO2014133797A1 (en) * | 2013-02-14 | 2014-09-04 | Golden Phillip | X-ray tube |
WO2015102576A1 (en) * | 2013-12-30 | 2015-07-09 | Halliburton Energy Services, Inc. | Deuterium-deuterium neutron generators |
US20170076903A1 (en) * | 2015-09-14 | 2017-03-16 | Michael Turner | X-ray tube |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2277712A (en) * | 1939-02-04 | 1942-03-31 | Slayter Electronic Corp | Electric discharge electrode |
US3309523A (en) * | 1963-06-24 | 1967-03-14 | Field Emission Corp | X-ray tube having field emission cathode and evaporative anode in combination with electrical pulser means |
-
1971
- 1971-04-07 US US131881A patent/US3883760A/en not_active Expired - Lifetime
-
1972
- 1972-04-01 IT IT22800/72A patent/IT953614B/it active
- 1972-04-01 DE DE19722216119 patent/DE2216119A1/de active Pending
- 1972-04-06 FR FR7212023A patent/FR2132696A1/fr not_active Withdrawn
- 1972-04-06 SU SU1768813A patent/SU433698A3/ru active
Also Published As
Publication number | Publication date |
---|---|
DE2216119A1 (de) | 1972-11-30 |
SU433698A3 (ru) | 1974-06-25 |
FR2132696A1 (it) | 1972-11-24 |
US3883760A (en) | 1975-05-13 |
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