GB840288A - Improvements in or relating to electric circuits including electron discharge devices having at least one secondary emissive electrode - Google Patents
Improvements in or relating to electric circuits including electron discharge devices having at least one secondary emissive electrodeInfo
- Publication number
- GB840288A GB840288A GB14951/58A GB1495158A GB840288A GB 840288 A GB840288 A GB 840288A GB 14951/58 A GB14951/58 A GB 14951/58A GB 1495158 A GB1495158 A GB 1495158A GB 840288 A GB840288 A GB 840288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- photo
- multiplier
- secondary emitting
- valve
- 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
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Abstract
840,288. Photo-multiplier circuits. WESTERN ELECTRIC CO. Inc. May 9, 1958 [May 15, 1957], No. 14951/58. Class 40 (3). [Also in Groups XXXV and XL (c)] The current multiplication of a secondary emitting electrode in photo-multiplier is monitored by means which compares the current in or before the electrode with the current at a point after the electrode. The resulting signal may be used to maintain the gain constant. The Figure shows a photo-multiplier tube 10 comprising a photo-cathode 11, secondary emitting electrodes 12 and 13 and an anode 14. The voltage across the output anode load 15 and across a resistor 17 in the circuit of the secondary emitting electrode 13 are smoothed in circuits 42, 40, 50, 52 and on the occurrence of pulses at terminals 70, 71, 72, 73 are compared at the grid of a valve 60. The output of this valve is smoothed by a circuit 58, 59 and applied to the grid of a valve 61 in series with the H.T. supply to the multiplier tube. Variations of the ratio between the currents in electrodes 13 and 14 thus vary the supply voltage to the photo-multiplier tube in such a manner as to maintain the ratio and thus the gain of the tube constant. In an alternative circuit (Fig. 4, not shown), the gain of the photo-multiplier tube is controlled by means of a valve connected in series with one of the secondary emitting electrodes lying between electrode 13 and the anode, instead of in series with the main H.T. supply. It is also suggested that the control could be effected at a control electrode other than a secondary emitting electrode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US659258A US3003065A (en) | 1957-05-15 | 1957-05-15 | Electron multiplier tube circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB840288A true GB840288A (en) | 1960-07-06 |
Family
ID=24644698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14951/58A Expired GB840288A (en) | 1957-05-15 | 1958-05-09 | Improvements in or relating to electric circuits including electron discharge devices having at least one secondary emissive electrode |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3003065A (en) |
| BE (1) | BE567283A (en) |
| CH (1) | CH361031A (en) |
| DE (1) | DE1066286B (en) |
| FR (1) | FR1206099A (en) |
| GB (1) | GB840288A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3076896A (en) * | 1961-05-01 | 1963-02-05 | Lockheed Aireraft Corp | Voltage supply and control system |
| US3275833A (en) * | 1962-12-06 | 1966-09-27 | Barnes Eng Co | Constant current system for photo-electric multiplier tube |
| US3296538A (en) * | 1963-04-04 | 1967-01-03 | Vincent D Stabilito | Photomultiplier amplifier and power supply |
| US8735818B2 (en) * | 2010-03-31 | 2014-05-27 | Thermo Finnigan Llc | Discrete dynode detector with dynamic gain control |
| AU2013344493B2 (en) * | 2012-11-19 | 2017-09-14 | Perkinelmer U.S. Llc | Ion detectors and methods of using them |
| WO2014078774A2 (en) * | 2012-11-19 | 2014-05-22 | Perkinelmer Health Sciences, Inc. | Optical detectors and methods of using them |
| EP3075001A4 (en) * | 2013-11-26 | 2017-02-15 | PerkinElmer Health Sciences, Inc. | Detectors and methods of using them |
| JP6272028B2 (en) | 2013-12-27 | 2018-01-31 | アジレント・テクノロジーズ・インクＡｇｉｌｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． | Secondary electron multiplier for mass spectrometer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2412423A (en) * | 1943-04-29 | 1946-12-10 | Rca Corp | Automatic gain control circuit |
| FR963733A (en) * | 1947-03-27 | 1950-07-19 | ||
| US2758217A (en) * | 1951-05-17 | 1956-08-07 | Perforating Guns Atlas Corp | Automatic scintillation counter |
| US2815453A (en) * | 1953-01-09 | 1957-12-03 | Edgerton Germeshausen And Grie | Radiation-indicating method and system |
| US2796531A (en) * | 1954-05-17 | 1957-06-18 | Gen Electric | Gain stabilizing circuit for electron multiplier phototubes |
| US2840720A (en) * | 1956-03-19 | 1958-06-24 | Albert B Van Rennes | Multiplier phototube stabilizing circuit |
| US2854583A (en) * | 1956-08-27 | 1958-09-30 | Cons Electrodynamics Corp | Gain stabilizer for an electron multiplier tube |
-
0
- DE DENDAT1066286D patent/DE1066286B/de active Pending
- BE BE567283D patent/BE567283A/xx unknown
-
1957
- 1957-05-15 US US659258A patent/US3003065A/en not_active Expired - Lifetime
-
1958
- 1958-05-07 FR FR1206099D patent/FR1206099A/en not_active Expired
- 1958-05-09 CH CH361031D patent/CH361031A/en unknown
- 1958-05-09 GB GB14951/58A patent/GB840288A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3003065A (en) | 1961-10-03 |
| CH361031A (en) | 1962-03-31 |
| FR1206099A (en) | 1960-02-08 |
| BE567283A (en) | |
| DE1066286B (en) | 1959-10-01 |
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