GB1173354A - Ionization vacuum gauge for ultra-low-pressures - Google Patents
Ionization vacuum gauge for ultra-low-pressuresInfo
- Publication number
- GB1173354A GB1173354A GB22409/67A GB2240967A GB1173354A GB 1173354 A GB1173354 A GB 1173354A GB 22409/67 A GB22409/67 A GB 22409/67A GB 2240967 A GB2240967 A GB 2240967A GB 1173354 A GB1173354 A GB 1173354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collector
- anode
- aperture
- shield
- ultra
- 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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1,173,354. Ionisation manometers. POLITECHNIKA WARSZAWSKA. 15 May, 1967 [17 May, 1966], No. 22409/67. Heading HID. In order to minimize the effects of stray radiation on the measurements obtained from an ionization vacuum gauge, the gas which is ionized is shielded from extraneous radiation by being enclosed in a chamber whose perforated walls 1, 2, 3 form the anode between which and a cathode 5 ionizing electrons flow. The ions then pass through an aperture 4 in the anode wall 3 and are collected by collector 6. To minimize photo-electric emission from the collector, induced by X-rays from the anode and ultra-violet radiation from the cathode, the collector is made small. Further shielding may be provided by inserting a solid shield (10), Fig. 3 (not shown), with an aperture corresponding to the aperture 4 between the anode wall 3 and the collector. Alternatively the anode wall 3 may be made of solid metal, Fig. 4 (not shown), and provided with a further shield (12) displaced from but covering the aperture 4. These shields may be connected to act as suppressor or modulating electrodes. To increase the sensitivity of the collector 6, it may be provided with a shield 7 of solid metal, mesh, or glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL114624A PL53042B1 (en) | 1966-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1173354A true GB1173354A (en) | 1969-12-10 |
Family
ID=19949482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22409/67A Expired GB1173354A (en) | 1966-05-17 | 1967-05-15 | Ionization vacuum gauge for ultra-low-pressures |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3463956A (en) |
| CH (1) | CH466606A (en) |
| CS (1) | CS167221B2 (en) |
| DE (1) | DE1648650A1 (en) |
| FR (1) | FR1522964A (en) |
| GB (1) | GB1173354A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437174A (en) * | 1972-05-26 | 1976-05-26 | Mullard Ltd | Ion gauges |
| US4393332A (en) * | 1980-09-05 | 1983-07-12 | Varian Associates, Inc. | Gyrotron transverse energy equalizer |
| US7741852B2 (en) * | 2005-05-09 | 2010-06-22 | Mori Patent Office | Ionization vacuum gauge |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2993137A (en) * | 1957-08-06 | 1961-07-18 | Nat Res Corp | Beta particle ionization gauge |
| DE1156581B (en) * | 1961-04-17 | 1963-10-31 | Philips Nv | Ionization manometer |
| US3292078A (en) * | 1961-12-08 | 1966-12-13 | Gca Corp | Vacuum gauge having an X-ray trap and a shield |
| US3394286A (en) * | 1965-05-27 | 1968-07-23 | Nat Res Corp | Ultrahigh vacuum measuring ionization gauge |
-
1967
- 1967-05-12 DE DE19671648650 patent/DE1648650A1/en active Pending
- 1967-05-15 GB GB22409/67A patent/GB1173354A/en not_active Expired
- 1967-05-16 FR FR106528A patent/FR1522964A/en not_active Expired
- 1967-05-17 US US639102A patent/US3463956A/en not_active Expired - Lifetime
- 1967-05-17 CH CH697067A patent/CH466606A/en unknown
- 1967-05-17 CS CS3567*BA patent/CS167221B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3463956A (en) | 1969-08-26 |
| CS167221B2 (en) | 1976-04-29 |
| FR1522964A (en) | 1968-04-26 |
| DE1648650A1 (en) | 1971-07-22 |
| CH466606A (en) | 1968-12-15 |
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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 |