GB1478318A - Monochromatic x-ray generator - Google Patents
Monochromatic x-ray generatorInfo
- Publication number
- GB1478318A GB1478318A GB3853074A GB3853074A GB1478318A GB 1478318 A GB1478318 A GB 1478318A GB 3853074 A GB3853074 A GB 3853074A GB 3853074 A GB3853074 A GB 3853074A GB 1478318 A GB1478318 A GB 1478318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- target
- rays
- window
- sept
- radiation
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
- H01J35/26—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by rotation of the anode or anticathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/16—Vessels; Containers; Shields associated therewith
- H01J35/18—Windows
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/02—Constructional details
- H05G1/04—Mounting the X-ray tube within a closed housing
-
- 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
- H01J35/08—Anodes; Anti cathodes
- H01J35/112—Non-rotating anodes
- H01J35/116—Transmissive anodes
Landscapes
- X-Ray Techniques (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1478318 X-ray tubes MACHLETT LABORATORIES Inc 3 Sept 1974 [4 Sept 1973] 38530/74 Heading H1D An X-ray generator includes a rotating target 38 of width many times its depth and emitting X-radiation from the side opposite to electron incidence, the target being orientated so that only glancing angle X-rays are emitted through window 26 in opaque housing 24. The increased distance of travel through the inclined target enhances absorption of brehmsstrahlung radiation and improves monochromaticity. Residual soft X-rays may be attenuated by a window filter. The electron beam is incident on the external surface of the target in Fig. 2 (not shown), and the X-rays are orthogonal to the rotating target axis in Fig. 3 (not shown). Emissions are discussed in relation to Figs. 4-6 (not shown) for Ce and Mo. The target may be 10-40 Á thick and at 70-85 degrees to the window. Target 38 may be formed by Rh diffusion at 2500‹ C. into graphite member 30. The graphite matrix allows greater electron penetration and distribution of heat to increase the cooling capacity. Member 30 may be Be, B, C and/or A1 and optionally other low At. No. elements and is thermally conducting for cooling the target. Target 38 may be of one or more elements from At. No. 40 (Zr) to At. No. 46 (Pd), and one or more of the lanthanides (At. Nos. 57 to 71) may be used, with iodine or barium contrasting agents in angiography. Ceria may alternatively be used, and Au and W are also mentioned.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US393773A US3894239A (en) | 1973-09-04 | 1973-09-04 | Monochromatic x-ray generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1478318A true GB1478318A (en) | 1977-06-29 |
Family
ID=23556191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3853074A Expired GB1478318A (en) | 1973-09-04 | 1974-09-03 | Monochromatic x-ray generator |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3894239A (en) |
| JP (2) | JPS5056196A (en) |
| CA (1) | CA1003579A (en) |
| CH (1) | CH575698A5 (en) |
| DE (1) | DE2441968C3 (en) |
| GB (1) | GB1478318A (en) |
| NL (1) | NL7411735A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3992633A (en) * | 1973-09-04 | 1976-11-16 | The Machlett Laboratories, Incorporated | Broad aperture X-ray generator |
| FR2386109A1 (en) * | 1977-04-01 | 1978-10-27 | Cgr Mev | G-RAY IRRADIATION HEAD FOR PANORAMIC IRRADIATION AND G-RAY GENERATOR INCLUDING SUCH IRRADIATION HEAD |
| FR2415876A1 (en) * | 1978-01-27 | 1979-08-24 | Radiologie Cie Gle | X-RAY TUBE, ESPECIALLY FOR TOMODENSITOMETER |
| DE3022618A1 (en) * | 1980-06-16 | 1982-01-21 | Siemens AG, 1000 Berlin und 8000 München | TURNING ANODE TUBE TUBES |
| DE3117726A1 (en) * | 1981-05-05 | 1982-12-02 | Siemens AG, 1000 Berlin und 8000 München | TURNING ANODE TUBE TUBES |
| JPH0731993B2 (en) * | 1987-03-18 | 1995-04-10 | 株式会社日立製作所 | Target for X-ray tube and X-ray tube using the same |
| US4912739A (en) * | 1987-09-21 | 1990-03-27 | Weiss Mortimer E | Rotating anode X-ray tube with deflected electron beam |
| DE4228559A1 (en) * | 1992-08-27 | 1994-03-03 | Dagang Tan | X-ray tube with a transmission anode |
| JP2726252B2 (en) * | 1995-02-28 | 1998-03-11 | ゼネラル・エレクトリック・カンパニイ | X-ray tube |
| DE19955392A1 (en) * | 1999-11-18 | 2001-05-23 | Philips Corp Intellectual Pty | Monochromatic x-ray source |
| DE10056623B4 (en) * | 1999-11-19 | 2015-08-20 | Panalytical B.V. | X-ray tube with a rare earth anode |
| US7180981B2 (en) | 2002-04-08 | 2007-02-20 | Nanodynamics-88, Inc. | High quantum energy efficiency X-ray tube and targets |
| US7978824B2 (en) * | 2006-04-20 | 2011-07-12 | Multi-Dimensional Imaging, Inc. | X-ray tube having transmission anode |
| DE102008007413A1 (en) | 2008-02-04 | 2009-08-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | X-ray target |
| CN103702503B (en) * | 2014-01-03 | 2017-01-11 | 中国原子能科学研究院 | Dual-purposed irradiation device for filtering beam X rays and fluorescent X rays |
| JP2019075325A (en) * | 2017-10-18 | 2019-05-16 | 浜松ホトニクス株式会社 | X-ray generator |
| WO2021011209A1 (en) * | 2019-07-15 | 2021-01-21 | Sigray, Inc. | X-ray source with rotating anode at atmospheric pressure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH272088A (en) * | 1947-02-11 | 1950-11-30 | Dent Ott Walter Dr Med | X-ray equipment. |
| US2901631A (en) * | 1955-03-04 | 1959-08-25 | Gen Electric | Filter means for penetrating rays |
| US3171030A (en) * | 1961-03-06 | 1965-02-23 | Zenith Radio Corp | System for producing short pulses of x-ray energy |
| US3239706A (en) * | 1961-04-17 | 1966-03-08 | High Voltage Engineering Corp | X-ray target |
| FR1363155A (en) * | 1963-01-30 | 1964-06-12 | Tubix Sa | Rotating anode for x-ray tubes |
| AT289967B (en) * | 1969-07-24 | 1971-05-10 | Plansee Metallwerk | Anode for X-ray tubes |
| AT300971B (en) * | 1970-03-25 | 1972-08-10 | Metallwerk Plansee Ag & Co Kom | Rotating anode composite plate for X-ray tubes |
| US3662210A (en) * | 1970-04-28 | 1972-05-09 | Viktor Fedorovich Maximov | Electrode for pulse high-power electrovacuum devices |
| US3737699A (en) * | 1972-05-18 | 1973-06-05 | Picker Corp | X-ray tube having anode target layer of molybdenum rhenium alloy |
| US3790838A (en) * | 1973-02-27 | 1974-02-05 | Machlett Lab Inc | X-ray tube target |
-
1973
- 1973-09-04 US US393773A patent/US3894239A/en not_active Expired - Lifetime
-
1974
- 1974-08-06 CA CA206,403A patent/CA1003579A/en not_active Expired
- 1974-09-02 DE DE2441968A patent/DE2441968C3/en not_active Expired
- 1974-09-03 GB GB3853074A patent/GB1478318A/en not_active Expired
- 1974-09-04 CH CH1200974A patent/CH575698A5/xx not_active IP Right Cessation
- 1974-09-04 NL NL7411735A patent/NL7411735A/en unknown
- 1974-09-04 JP JP49101808A patent/JPS5056196A/ja active Pending
-
1978
- 1978-08-08 JP JP1978108815U patent/JPS594439Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3894239A (en) | 1975-07-08 |
| DE2441968A1 (en) | 1975-03-13 |
| DE2441968C3 (en) | 1980-12-11 |
| DE2441968B2 (en) | 1980-04-17 |
| NL7411735A (en) | 1975-03-06 |
| JPS594439Y2 (en) | 1984-02-08 |
| CH575698A5 (en) | 1976-05-14 |
| JPS5448580U (en) | 1979-04-04 |
| CA1003579A (en) | 1977-01-11 |
| JPS5056196A (en) | 1975-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920903 |