JPS57107550A - Ion detector for mass spectrograph - Google Patents
Ion detector for mass spectrographInfo
- Publication number
- JPS57107550A JPS57107550A JP55183574A JP18357480A JPS57107550A JP S57107550 A JPS57107550 A JP S57107550A JP 55183574 A JP55183574 A JP 55183574A JP 18357480 A JP18357480 A JP 18357480A JP S57107550 A JPS57107550 A JP S57107550A
- Authority
- JP
- Japan
- Prior art keywords
- ion
- negative
- electrode
- conversion electrode
- positive
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/025—Detectors specially adapted to particle spectrometers
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
PURPOSE:To detect the negative ion effectively by facing the incident face of a photoelectric multiplier tube where the high negative potential is applied on the ion path with a conversion electrode then applying the high positive potential on the conversion electrode and converting the negative ion into the positive ion. CONSTITUTION:The ion from an ion source 1 is fed to a tetra-pole mass spectrograph 6 and to detect the passed ion (i) by means of a photoelectric multiplier tube 7. Here a first diode D1 to be applied with high negative potential is faced with a conversion electrode 8 while holding an ion path between them and a shield electrode 11 is arranged between them. When detecting the negative ion the negative ion is attracted to the direction of the conversion electrode 8 and collided against it to produce the positive secondary ion which is attracted by a shield electrode 11 and fed to a diode D1, thereby the negative ion can be detected efficiently even under low ion accelerating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183574A JPS57107550A (en) | 1980-12-24 | 1980-12-24 | Ion detector for mass spectrograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183574A JPS57107550A (en) | 1980-12-24 | 1980-12-24 | Ion detector for mass spectrograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57107550A true JPS57107550A (en) | 1982-07-05 |
Family
ID=16138185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55183574A Pending JPS57107550A (en) | 1980-12-24 | 1980-12-24 | Ion detector for mass spectrograph |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57107550A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01231254A (en) * | 1988-03-09 | 1989-09-14 | Toyama Univ | Mass spectrometer for tritium measurement |
| US4972083A (en) * | 1989-01-09 | 1990-11-20 | Hitachi, Ltd. | Post-acceleration detector for mass spectrometer |
| EP3627534A4 (en) * | 2017-05-17 | 2020-05-06 | Shimadzu Corporation | Ion detection device and mass spectrography device |
| JP2020092005A (en) * | 2018-12-05 | 2020-06-11 | 株式会社島津製作所 | Ion trap mass spectrometer and ion trap mass spectroscopy |
-
1980
- 1980-12-24 JP JP55183574A patent/JPS57107550A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01231254A (en) * | 1988-03-09 | 1989-09-14 | Toyama Univ | Mass spectrometer for tritium measurement |
| US4972083A (en) * | 1989-01-09 | 1990-11-20 | Hitachi, Ltd. | Post-acceleration detector for mass spectrometer |
| EP3627534A4 (en) * | 2017-05-17 | 2020-05-06 | Shimadzu Corporation | Ion detection device and mass spectrography device |
| JP2020092005A (en) * | 2018-12-05 | 2020-06-11 | 株式会社島津製作所 | Ion trap mass spectrometer and ion trap mass spectroscopy |
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