Patent ID: 11955327
Assignee: HITACHI HIGH-TECH CORPORATION
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 3:
4. The ion detector according to claim 3, further comprising a control unit,
wherein the control unit
adjusts a positive voltage applied to the negative ion conversion dynode and deflects a trajectory of the positive ions entering from the ion entrance, so that the position where the positive ions collide with the positive ion conversion dynode is a position closer to the scintillator than the position where the negative potential barrier is generated, and
deflects a trajectory of the positive ions of the metal generated by the negative ions entering from the ion entrance colliding with the negative ion conversion dynode, so that the position where the positive ions of the metal collide with the positive ion conversion dynode is a position closer to the scintillator than the position where the negative potential barrier is generated.