GB1037742A - Method and apparatus for detecting components of a gas mixture by ionisation and measurement of the ion current - Google Patents
Method and apparatus for detecting components of a gas mixture by ionisation and measurement of the ion currentInfo
- Publication number
- GB1037742A GB1037742A GB9592/63A GB959263A GB1037742A GB 1037742 A GB1037742 A GB 1037742A GB 9592/63 A GB9592/63 A GB 9592/63A GB 959263 A GB959263 A GB 959263A GB 1037742 A GB1037742 A GB 1037742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ionization
- helium
- different
- chamber
- proportions
- 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
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/70—Electron capture detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
- G01N27/623—Ion mobility spectrometry combined with mass spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J27/00—Ion beam tubes
- H01J27/02—Ion sources; Ion guns
- H01J27/20—Ion sources; Ion guns using particle beam bombardment, e.g. ionisers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/04—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/14—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Plasma & Fusion (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Examining Or Testing Airtightness (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
1,037,742. Discharge apparatus. ATLAS MERS-UND ANALYSENTECHNIK G.m.b.H. March 11, 1963 [March 10, 1962], No. 9592/63. Heading H1D. [Also in Division G1] To detect components in a gas it is ionized at two or more different energies so that the ionization probabilities of the different components are in different proportions in the different ionization chambers. Thus the total ion currents may be used to evaluate the proportions of the components in the mixture. In the embodiment of Fig. 1 an electron beam passes through a first ionization chamber 6 and then has its energy increased before passing through a second ionization chamber 7. The magnet 14, 15 serves to focus the electron beam. The apparatus may be used to determine the proportions in a binary mixture from the ion currents to collectors 19 and 20. The apparatus may also be used as a leak detector in a high vacuum apparatus. In this case the energy of the electron beam in the first chamber is preferably below the ionization value for the probe gas such as helium and the energy in the second chamber is arranged to give as high an ionization of helium as possible. The bridge circuit 23 is first balanced in the absence of helium so that when the apparatus is sprayed with helium a very sensitive response is produced to a leak. In another embodiment, Fig. 2 (not shown), the ionization chambers are connected between a gas chromatography column and a mass spectrometer. This arrangement uses parallel electron beams of different energies in the two chambers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19511698533 DE1698533A1 (en) | 1951-01-28 | 1951-01-28 | High vacuum ion source assembly |
| DEA0039680 | 1962-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1037742A true GB1037742A (en) | 1966-08-03 |
Family
ID=25754628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9592/63A Expired GB1037742A (en) | 1951-01-28 | 1963-03-11 | Method and apparatus for detecting components of a gas mixture by ionisation and measurement of the ion current |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1698533A1 (en) |
| GB (1) | GB1037742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495266A (en) * | 2011-12-04 | 2012-06-13 | 中国航天科技集团公司第五研究院第五一〇研究所 | Ion current detection device for magnetic deflection mass spectrograph |
-
1951
- 1951-01-28 DE DE19511698533 patent/DE1698533A1/en active Pending
-
1963
- 1963-03-11 GB GB9592/63A patent/GB1037742A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495266A (en) * | 2011-12-04 | 2012-06-13 | 中国航天科技集团公司第五研究院第五一〇研究所 | Ion current detection device for magnetic deflection mass spectrograph |
| CN102495266B (en) * | 2011-12-04 | 2013-11-20 | 中国航天科技集团公司第五研究院第五一〇研究所 | Ion current detection device for magnetic deflection mass spectrograph |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1698533B2 (en) | 1974-05-09 |
| DE1698533A1 (en) | 1972-01-20 |
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