JPS54133397A - Mass spectrograph - Google Patents
Mass spectrographInfo
- Publication number
- JPS54133397A JPS54133397A JP4036378A JP4036378A JPS54133397A JP S54133397 A JPS54133397 A JP S54133397A JP 4036378 A JP4036378 A JP 4036378A JP 4036378 A JP4036378 A JP 4036378A JP S54133397 A JPS54133397 A JP S54133397A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- ion
- mass
- ions
- output
- 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
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
PURPOSE:To automatically obtain a sufficient mass range for obtaining perfect mass spectra by limiting the magnetic field sweep range by the output voltage of the ion detecting electrode disposed on the outer side of ion beam central track. CONSTITUTION:Sample is ionized by an ion source 1. The ions are dispersed and converged by a magnetic field 2. The ions detected in an ion detector 3 ar recorded 5 as mass spectra via amplifier 4. Magnetic field sweeping is accomplished by a sweeper 6 and a magnetic field power source 7. When in this case an ion detecting electrode 8 is provided on the outer side of the ion center track in the magnetic field 2, ions being received in the electrode 8 reduces with lapse of the magnetic field sweep time from low mass to high mass, whereby the same region is detected. The output thereof is compared 11 with the output of a comparing reference power source 19 via DC amplifier 9 and when it is lower than the reference voltage, a magnetic field sweeper 6 is stopped.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036378A JPS54133397A (en) | 1978-04-07 | 1978-04-07 | Mass spectrograph |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036378A JPS54133397A (en) | 1978-04-07 | 1978-04-07 | Mass spectrograph |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54133397A true JPS54133397A (en) | 1979-10-17 |
Family
ID=12578546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4036378A Pending JPS54133397A (en) | 1978-04-07 | 1978-04-07 | Mass spectrograph |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54133397A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011133437A (en) * | 2009-12-25 | 2011-07-07 | Shimadzu Corp | Helium leak detector |
-
1978
- 1978-04-07 JP JP4036378A patent/JPS54133397A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011133437A (en) * | 2009-12-25 | 2011-07-07 | Shimadzu Corp | Helium leak detector |
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