GB1431159A - Luminous discharge cell for spectrographic analysis - Google Patents
Luminous discharge cell for spectrographic analysisInfo
- Publication number
- GB1431159A GB1431159A GB2961674A GB2961674A GB1431159A GB 1431159 A GB1431159 A GB 1431159A GB 2961674 A GB2961674 A GB 2961674A GB 2961674 A GB2961674 A GB 2961674A GB 1431159 A GB1431159 A GB 1431159A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- anode
- cathode
- anode tube
- ring
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
- G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
Landscapes
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
1431159 Glow discharge lamp SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 4 July 1974 [6 July 1973 30 April 1974] 29616/74 Heading H1D In a spectrographic-source discharge lamp, sample particles in the surface layers 5a of graphite powder 5c held in cathode Cu ring 5 are exposed to a discharge in low pressure Ar from screw-adjustable Cu anode tube 4, with spring 11 loaded quartz sleeve 8 radially limiting the discharge, the light passing along the bore of anode tube 4 to window or lens 6 (e.g. of quartz). Cathode ring 5 is held against toroidal seal 15 by spring 16 loaded water-cooled member 18. Sleeve 8 slides over the anode tube 4 and inside PTFE sleeve 10 tightly fitting inside watercooled metal support ring 7. The Ar enters at 2, passes along the bore of anode tube 4 and returns to pumped exit 3 via flutes or clearance in the exterior of anode tube 4 or in the inside of sleeve 8. The anode-cathode gap is adjustable by worm 13 and wheel 12, turning screw threads in water-cooled anode terminal nut 14 in sealed polymethylmethacrylate body 9. Anode 4 and sleeve 8 are readily replaceable: if rigid curved samples are to be examined, sleeve 8 is modified to carry at its end a washer sealing as at 15 and an O-ring to seal against the sample surface (Fig. 3, not shown). To estimate volatile elements, member 18 is replaced (Fig. 4, not shown) by an evacuable double-skinned watercooled wall of low expansivity glass, with rigid central W cathode terminal rod to support a graphite sample holder inserted in the end of sleeve 8. This holder, which may be in two interfitting parts, contains the sample powder in a cavity with a restricted exit into sleeve 8 (Figs. 5, 6, 7, not shown). Liquid samples may be analyzed with an impregnated cathode, and gaseous samples by addition to the gas stream.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7324891A FR2236169A1 (en) | 1973-07-06 | 1973-07-06 | Spectrographic analysis chamber with sample holder - has insulating sleeve enclosing anode end section movable along its axis |
| FR7414940A FR2269710A2 (en) | 1974-04-30 | 1974-04-30 | Spectrographic analysis chamber with sample holder - has insulating sleeve enclosing anode end section movable along its axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1431159A true GB1431159A (en) | 1976-04-07 |
Family
ID=26217823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2961674A Expired GB1431159A (en) | 1973-07-06 | 1974-07-04 | Luminous discharge cell for spectrographic analysis |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3909652A (en) |
| JP (1) | JPS5433755B2 (en) |
| CH (1) | CH590554A5 (en) |
| DE (1) | DE2432203C3 (en) |
| GB (1) | GB1431159A (en) |
| IT (1) | IT1015723B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999094A (en) * | 1975-06-27 | 1976-12-21 | Zenith Radio Corporation | Cathodoluminescent gas discharge device with improved modulation characteristics |
| JPS60180056A (en) * | 1984-02-27 | 1985-09-13 | Shimadzu Corp | Glow discharge tube for emission spectral analysis |
| EP0174505B1 (en) * | 1984-08-13 | 1990-07-04 | Jae Bak Ko | Glow-discharge lamp for the spectral analysis of samples |
| US4641968A (en) * | 1984-12-17 | 1987-02-10 | Baird Corporation | Mobile spectrometric apparatus |
| US5085499A (en) * | 1988-09-02 | 1992-02-04 | Battelle Memorial Institute | Fiber optics spectrochemical emission sensors |
| JPH0756781B2 (en) * | 1992-04-24 | 1995-06-14 | 江東電気株式会社 | Hollow cathode discharge tube |
| FR2986105B1 (en) * | 2012-01-20 | 2014-12-05 | Horiba Jobin Yvon Sas | LUMINESCENT DISCHARGE LAMP FOR LUMINESCENT DISCHARGE SPECTROMETER |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1910461B2 (en) * | 1969-03-01 | 1971-09-23 | GLIME DISCHARGE TUBE FOR THE ANALYSIS OF WIRE AND WIRE FOR MIGEN METALLIC BODIES | |
| FR2041637A5 (en) * | 1969-05-09 | 1971-01-29 | Commissariat Energie Atomique | |
| US3633990A (en) * | 1969-06-18 | 1972-01-11 | Bair Atomic Inc | Demountable cathode glow discharge tube, particularly for self-aligning spectroscopic devices |
| US3699383A (en) * | 1970-12-28 | 1972-10-17 | Hewlett Packard Co | Flow-through hollow cathode spectral light source and method of operating same |
-
1974
- 1974-07-03 US US485452A patent/US3909652A/en not_active Expired - Lifetime
- 1974-07-04 GB GB2961674A patent/GB1431159A/en not_active Expired
- 1974-07-04 CH CH914274A patent/CH590554A5/xx not_active IP Right Cessation
- 1974-07-05 IT IT24877/74A patent/IT1015723B/en active
- 1974-07-05 DE DE2432203A patent/DE2432203C3/en not_active Expired
- 1974-07-06 JP JP7691874A patent/JPS5433755B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3909652A (en) | 1975-09-30 |
| DE2432203C3 (en) | 1980-07-17 |
| IT1015723B (en) | 1977-05-20 |
| CH590554A5 (en) | 1977-08-15 |
| JPS5071376A (en) | 1975-06-13 |
| JPS5433755B2 (en) | 1979-10-23 |
| DE2432203A1 (en) | 1975-01-23 |
| DE2432203B2 (en) | 1979-08-30 |
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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: 19920704 |