US 12,334,326 B2
Ion analyzer
Yuta Miyazaki, Kyoto (JP); Shiro Mizutani, Kyoto (JP); and Wataru Fukui, Kyoto (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP)
Appl. No. 17/918,375
Filed by SHIMADZU CORPORATION, Kyoto (JP)
PCT Filed Apr. 17, 2020, PCT No. PCT/JP2020/016876
§ 371(c)(1), (2) Date Oct. 12, 2022,
PCT Pub. No. WO2021/210165, PCT Pub. Date Oct. 21, 2021.
Prior Publication US 2023/0197427 A1, Jun. 22, 2023
Int. Cl. H01J 49/02 (2006.01); H01J 49/16 (2006.01)
CPC H01J 49/022 (2013.01) [H01J 49/167 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An ion analyzer comprising:
a power feeding circuit in which a power supply connection part, a first electrode connection part, a first resistance element, a second electrode connection part, a second resistance element, and a grounding part are provided in series;
a power supply connected to the power supply connection part and configured to output both a DC positive voltage and a DC negative voltage;
a first voltage supply electrode connected to the first electrode connection part; and
a second voltage supply electrode connected to the second electrode connection part;
wherein
the first voltage supply electrode is a push electrode that is disposed on an opposite side of an ion intake port communicating an ionization chamber and an ion analysis section, and sandwiches an ion supply path with the ion intake port in the ionization chamber, and
the second voltage supply electrode is a convergence electrode including an opening that surrounds the ion intake port in the ionization chamber.