US 12,431,343 B2
Inductive detector with integrated amplifier
Joseph A. Jarrell, Newton Highlands, MA (US); Patrick Brophy, Newton Highlands, MA (US); and Alistair J. Schofield, Oldham (GB)
Assigned to Waters Technologies Corporation, Milford, MA (US)
Filed by Waters Technologies Corporation, Milford, MA (US)
Filed on Dec. 14, 2022, as Appl. No. 18/066,067.
Claims priority of provisional application 63/289,951, filed on Dec. 15, 2021.
Prior Publication US 2023/0187193 A1, Jun. 15, 2023
Int. Cl. H01J 49/02 (2006.01); H01J 49/00 (2006.01)
CPC H01J 49/027 (2013.01) [H01J 49/0031 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An image charge detection assembly for a mass spectrometer comprising an image charge detector, which is housed within an electrically conductive shielding enclosure, and a preamplifier, which is electrically connected to the detector and housed with the detector within the enclosure;
wherein an input stage of the preamplifier is directly coupled to the charge detector.