Nova Measuring Instruments Ltd.

Other

Yungman Alan Liu

Christopher F Bevis

David Allen Reed

Eli Cheifetz

Amit Weingarten

Alexander Kadyshevitch

An ion detector for secondary ion mass spectrometer, the detector having an electron emission plate coupled to a first electrical potential and configured to emit electrons upon incidence on ions; a scintillator coupled to a second electrical potential, different from the first electrical potential, the scintillator having a front side facing the electron emission plate and a backside, the scintillator configured to emit photons from the backside upon incidence of electrons on the front side; a lightguide coupled to the backside of the scintillator and confining flow of photons emitted from the backside of the scintillator; and a solid-state photomultiplier coupled to the light guide and having an output configured to output electrical signal corresponding to incidence of photons from the lightguide. A SIMS system includes a plurality of such detectors movable arranged over the focal plane of a mass analyzer.

Mass spectrometer detector and system and method using the same

This embodiment is a noise cancellation system for electric stringed instrument comprises of passive pickup circuit with non humbucking pickup coils called a signal coil. Each signal coil senses the unwanted electromagnetic radiation from the surrounding and produce a noise voltage that gives humming and buzzing noise through an amplifier. This embodiment cancels the noise by injecting a current signal directly into the signal coil. The impedance of the signal coil in parallel with the impedance already loading the signal coil, transform the current signal back to a voltage equal and opposite to the noise voltage; thereby, canceling each other and eliminates the noise.

Pickup system for stringed musical instruments comprises of non-humbucking pickups with noise cancelling by current injection

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Sunnyvale, CA, United States of America

Yungman Alan Liu