Detection of accelerated large water cluster ions and electrosprayed biomolecules with passivated solid state detectors
Abstract
The passivated solid state detector with a 500 A boron doped window was observed to be sensitive to impacts of large (H 2O) nH + (100 < n < 1500) ions and multiply charged macro biomolecular ions accelerated in a 600 kV Cockcroft-Walton accelerator although the ions have isolated atomic ranges smaller than the thickness of the detector window. For biomolecular ions generated by an electrospray ion source the detector pulse height spectra showed clearly resolved peaks that are consistent with the existence of aggregate ions of composition M z, 2M 2 z, …, 5M 5 z ions.
- Publication:
-
Nuclear Instruments and Methods in Physics Research B
- Pub Date:
- June 1996
- DOI:
- 10.1016/0168-583X(96)00043-2
- Bibcode:
- 1996NIMPB.114..185B