Thermo Finnigan LLC

University of Texas System

Thermo Fisher Scientific (bremen) Gmbh

Yevgeniy N Zhuk

Alexander Alekseevich Makarov

Jae C Schwartz

Viatcheslav V Kovtoun

Philip M Remes

Jens Griep-Raming

Nigel P Gore

Jennifer S Brodbelt

Dustin D Holden

Systems, methods, and devices to dissociate ions using one or more light emitting diodes (LEDs). A mass spectrometer for ion dissociation includes an ion source for providing ions for dissociation, a mass analyzer, and a photodissociation (PD) device. The PD device includes an ion transport device. The ion transport device is configured perform one or more of: transporting the ions through the PD device, and trapping the ions within a region of the PD device. The PD device also includes one or more LEDs positioned to irradiate the ions in the PD device, resulting in fragmentation of the ions.

Devices, systems, and methods for dissociation of ions using light emitting diodes

A mass spectrometer having an ion guide with an axial field is described. The ion guide includes electrodes with longitudinally extending gaps and inserts configured to be proximate to the gaps.

Mass spectrometer having an ion guide with an axial field

A detector assembly including a support element, a first capacitor plate and a second capacitor plate. The support element is configured to attach the detector assembly to a chamber wall that separates a lower pressure region and a higher pressure region. A surface of the second capacitor plate is spaced apart from a surface of the first capacitor plate to define a capacitor gap. The first capacitor plate is positioned to be inside the lower pressure region when the detector assembly is attached to the chamber wall. The second capacitor plate is supported by the support element through insulating couplings. The detector assembly also includes a means for reducing mechanical load on the insulating couplings between the second capacitor plate and the support element. The reduced mechanical load includes load caused by a pressure difference between the lower and higher pressure regions.

Decreasing load on devices for mass spectrometers

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Foster City, CA, United States of America

Yevgeniy N Zhuk