Invention Grant
- Patent Title: Virtual image type double focusing mass spectrometer
- Patent Title (中): 虚拟图像双重聚焦质谱仪
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Application No.: US498078Application Date: 1974-08-16
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Publication No.: US3944827APublication Date: 1976-03-16
- Inventor: Hisashi Matsuda
- Applicant: Hisashi Matsuda
- Applicant Address: JA Tokyo
- Assignee: Nihon Denshi Kabushiki Kaisha
- Current Assignee: Nihon Denshi Kabushiki Kaisha
- Current Assignee Address: JA Tokyo
- Priority: JA48-93749 19730821
- Main IPC: G01N27/62
- IPC: G01N27/62 ; H01J49/32 ; H01J39/42
Abstract:
A virtual image type double focusing mass spectrometer having a diverging electrostatic field and a converging magnetic field, wherein parameters related to the fringing effects in the boundaries of said fields and to the distribution of the electrostatic field reduces image aberrations of the second order.
Public/Granted literature
- US5678419A Evaporator for a refrigerating system Public/Granted day:1997-10-21
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