Title:
ANALYZING DEVICE AND HIGH VOLTAGE POWER SOURCE DEVICE
Document Type and Number:
Japanese Patent JP3294981
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To require no high voltage switching relay by utilizing floating so as to avoid the withstand voltage increase of a high voltage power source.
SOLUTION: Two high voltage power source 7, 8 which can be complementarily switched between 0V and predetermined voltages are connected in series, a series connection point is grounded, a positive voltage side output terminal is connected to a scintillator 4, the output is voltage-divided 9, 10 and is connected to a conversion dynode 2 so as to complementarily switch two high voltage power source. Thereby, as applying a positive voltage against the conversion dynode 2 to the scintillator 4, the polarity of an ion acceleration voltage in the conversion dynode 2 is switched in response to minus ions and plus ions, the ions are accelerated and hit to the conversion dynode 2 so as to emit secondary electrons, and further the secondary electrons are accelerated and detected by the scintillator 4 so as to detect the ions.
Inventors:
Satoshi Kitamura
Tatsuji Satoh
Tatsuji Satoh
Application Number:
JP31196095A
Publication Date:
June 24, 2002
Filing Date:
November 30, 1995
Export Citation:
Assignee:
JEOL Ltd.
International Classes:
G01N23/225; H01J43/04; H01J43/30; H01J49/02; (IPC1-7): H01J43/30; H01J43/04; H01J49/02
Domestic Patent References:
| JP670147A | ||||
| JP4895294A | ||||
| JP5314946A | ||||
| JP670147U |
Attorney, Agent or Firm:
Ryuyoshi Abe (7 outside)