| 发明名称 |
Filament assembly for mass spectrometer ion sources |
| 摘要 |
A filament assembly is disclosed for providing an electron beam to an ion source volume to ionize molecules or particles in the ion source volume. The filament assembly includes an electron lens which accelerates electrons emitted by the filament and focuses the electrons into a beam.
|
| 申请公布号 |
US5543625(A) |
申请公布日期 |
1996.08.06 |
| 申请号 |
US19940246792 |
申请日期 |
1994.05.20 |
| 申请人 |
FINNIGAN CORPORATION |
发明人 |
JOHNSON, BRUCE S.;KHOSLA, MUKUL;HERRON, JOHN R.;BRASSIL, JOHN M.;SCHOEN, ALAN E. |
| 分类号 |
H01J27/02;H01J27/20;(IPC1-7):H01J27/00 |
主分类号 |
H01J27/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
