公开(公告)号：US5196700A

公开(公告)日：1993-03-23

申请号：US798755

申请日：1991-11-27

Applicant: Norio Kameshima

Inventor： Norio Kameshima

IPC: H01J49/10 ,  G01N30/30 ,  G01N30/60 ,  G01N30/72 ,  H01J49/04 ,  H01J49/14

CPC classification number: H01J49/0422 ,  G01N30/7206 ,  H01J49/0486 ,  H01J49/147 ,  G01N2030/3038 ,  G01N2030/6013

Abstract: An ionization chamber is separated from an ion lens system while the chamber is in contact with an interface block so that they are directly coupled in which a heater embedded in the interface block serves to heat both the interface block and the ionization chamber.