GB1478320A - X-ray generator - Google Patents
X-ray generatorInfo
- Publication number
- GB1478320A GB1478320A GB3853274A GB3853274A GB1478320A GB 1478320 A GB1478320 A GB 1478320A GB 3853274 A GB3853274 A GB 3853274A GB 3853274 A GB3853274 A GB 3853274A GB 1478320 A GB1478320 A GB 1478320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substrate
- radiation
- axis
- target surface
- target
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H5/00—Direct voltage accelerators; Accelerators using single pulses
- H05H5/02—Details
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/52—Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- X-Ray Techniques (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1478320 X-ray tubes MACHLETT LABORATORIES Inc 3 Sept 1974 [4 Sept 1973] 38532/74 Heading H1D An X-ray generator comprises target 38A on X-radiation transparent substrate 36A, source 40A to produce electrons to excite X-radiation from the target surface on substrate 36A and an X-radiation opaque housing 94 (e.g. of Pb) with a window, the substrate at its adjacent target surface being so inclined to the axis that X- rays emitted along the axis are at angles to the normal to the said target surface in the range 80 to 85 degrees. Brehmsstrahlung radiation is attenuated in the axial direction due to the increased path through the inclined substrate. Zone plates of chirpped checkerboard pattern or off-axis Fresnel pattern are mentioned, and attached zone plate 69 may be a Pb containing deposition on a substrate. The conical substrate may be re-entrant (Fig. 2, not shown) and magnets 162, 164, may replace modulation grid 74, and the electrons may scan a raster or spiral thereby smoothing out effects of beam irregularities. The target may be 20-40Á thick and Mo and Ce fluorescent and brehmsstrahlung emissions are discussed w.r.t. Figs. 3, 4 (not shown). Au or W targets are also disclosed. Fig. 1 also includes insulating oil 96, tube base 100 of which substrate 36A forms a part, and glass envelope 98. Diagnostic angiography is discussed utilizing iodine as radiographic dye.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39377173A | 1973-09-04 | 1973-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1478320A true GB1478320A (en) | 1977-06-29 |
Family
ID=23556181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3853274A Expired GB1478320A (en) | 1973-09-04 | 1974-09-03 | X-ray generator |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5928939B2 (en) |
| CA (1) | CA1007767A (en) |
| CH (1) | CH586989A5 (en) |
| DE (1) | DE2441986B2 (en) |
| GB (1) | GB1478320A (en) |
| NL (1) | NL162788C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2926823A1 (en) * | 1979-07-03 | 1981-01-22 | Siemens Ag | ELECTRONIC ACCELERATOR |
| DE2926883A1 (en) * | 1979-07-03 | 1981-01-22 | Siemens Ag | ELECTRONIC ACCELERATOR |
| JPS61133992A (en) * | 1984-12-04 | 1986-06-21 | ヤマハ株式会社 | Keyboard switch for electronic musical instrument |
| JPH04348395A (en) * | 1991-01-10 | 1992-12-03 | Yamaha Corp | Electronic percussion instrument |
| RU2161843C2 (en) | 1999-02-17 | 2001-01-10 | Кванта Вижн, Инк. | Point high-intensity source of x-ray radiation |
| IT1398464B1 (en) * | 2010-02-02 | 2013-02-22 | Microtec Srl | RADIOGEN TUBE |
-
1974
- 1974-08-06 CA CA206,407A patent/CA1007767A/en not_active Expired
- 1974-09-02 DE DE2441986A patent/DE2441986B2/en not_active Ceased
- 1974-09-03 GB GB3853274A patent/GB1478320A/en not_active Expired
- 1974-09-04 JP JP49101807A patent/JPS5928939B2/en not_active Expired
- 1974-09-04 CH CH1201074A patent/CH586989A5/xx not_active IP Right Cessation
- 1974-09-04 NL NL7411736.A patent/NL162788C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7411736A (en) | 1975-03-06 |
| NL162788C (en) | 1980-06-16 |
| DE2441986B2 (en) | 1979-07-12 |
| JPS5928939B2 (en) | 1984-07-17 |
| JPS5056195A (en) | 1975-05-16 |
| CH586989A5 (en) | 1977-04-15 |
| CA1007767A (en) | 1977-03-29 |
| NL162788B (en) | 1980-01-15 |
| DE2441986A1 (en) | 1975-03-06 |
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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 |