JPS5638761A - Setting of magnetic field in mass spectrometer - Google Patents
Setting of magnetic field in mass spectrometerInfo
- Publication number
- JPS5638761A JPS5638761A JP11389379A JP11389379A JPS5638761A JP S5638761 A JPS5638761 A JP S5638761A JP 11389379 A JP11389379 A JP 11389379A JP 11389379 A JP11389379 A JP 11389379A JP S5638761 A JPS5638761 A JP S5638761A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- mass number
- memory
- peak center
- setting
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/28—Static spectrometers
- H01J49/30—Static spectrometers using magnetic analysers, e.g. Dempster spectrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
PURPOSE:To compensate accurately the magnetic field intensity for peak center by introducing compensating quantity given as a function of the mass number. CONSTITUTION:A secondary ion generated in a sample 1 is accelerated with an accelerating electorde 2, and detected with an ion detector 10 through an electric field 3 and a magnetic field 4. Outputs of a magnetic field detecting circuit 6 and magnetic field value setting device 7 are compared with a magnetic field controller 8 comprising a comparator, and a magnetic field generating circuit 9 controls an exciting current to obtain magnetic fields of each step corresponding to the output. Because the magnetic field is controlled directly by signals which represent the magnetic field, a mechanism for conversion of magnetic field intensity to mass number is needless. An arithmetic processing unit 13 figures out a peak center magnetic field corresponding to the mass number referring to contents of a memory 17 when the mass number is input from an input unit 18 to the memory 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54113893A JPS5913148B2 (en) | 1979-09-04 | 1979-09-04 | How to set the magnetic field in a mass spectrometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54113893A JPS5913148B2 (en) | 1979-09-04 | 1979-09-04 | How to set the magnetic field in a mass spectrometer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5638761A true JPS5638761A (en) | 1981-04-14 |
JPS5913148B2 JPS5913148B2 (en) | 1984-03-28 |
Family
ID=14623770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54113893A Expired JPS5913148B2 (en) | 1979-09-04 | 1979-09-04 | How to set the magnetic field in a mass spectrometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5913148B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190754A (en) * | 1982-04-30 | 1983-11-07 | Shimadzu Corp | Mass number display apparatus of mass spectrometer apparatus |
JPS6179452U (en) * | 1984-10-30 | 1986-05-27 | ||
JPH03151503A (en) * | 1989-11-07 | 1991-06-27 | Hitachi Ltd | Turbine control device and turbine overspeed detector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0335742U (en) * | 1989-08-15 | 1991-04-08 |
-
1979
- 1979-09-04 JP JP54113893A patent/JPS5913148B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190754A (en) * | 1982-04-30 | 1983-11-07 | Shimadzu Corp | Mass number display apparatus of mass spectrometer apparatus |
JPH0376413B2 (en) * | 1982-04-30 | 1991-12-05 | Shimadzu Corp | |
JPS6179452U (en) * | 1984-10-30 | 1986-05-27 | ||
JPH0342619Y2 (en) * | 1984-10-30 | 1991-09-06 | ||
JPH03151503A (en) * | 1989-11-07 | 1991-06-27 | Hitachi Ltd | Turbine control device and turbine overspeed detector |
Also Published As
Publication number | Publication date |
---|---|
JPS5913148B2 (en) | 1984-03-28 |
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