G01R19/0061

Current detection device and spectrometer using ihe same

A device of detecting a current from a sensor is disclosed. The device includes an integrating circuit including a network of capacitors for providing a gain setting and configured to convert the current to a voltage ramp over a length of integration time, the integrating circuit further including a reset switch configured to connect an input and an output of the network of capacitors; an ADC configured to digitize the voltage ramp into a plurality of voltage samples; and a set of modules including an analyzing module configured to analyze the plurality of voltage samples to determine a slope of the voltage ramp; an outputting module configured to determine a magnitude of the current based on the slope of the voltage ramp and the gain setting; and a reconfiguring module that is configured to reconfigure the network of capacitors and reset the voltage ramp via the reset switch.

CURRENT DETECTION DEVICE AND SPECTROMETER USING THE SAME

A device of detecting a current from a sensor is disclosed. The device includes an integrating circuit including a network of capacitors for providing a gain setting and configured to convert the current to a voltage ramp over a length of integration time, the integrating circuit further including a reset switch configured to connect an input and an output of the network of capacitors; an ADC configured to digitize the voltage ramp into a plurality of voltage samples; and a set of modules including an analyzing module configured to analyze the plurality of voltage samples to determine a slope of the voltage ramp; an outputting module configured to determine a magnitude of the current based on the slope of the voltage ramp and the gain setting; and a reconfiguring module that is configured to reconfigure the network of capacitors and reset the voltage ramp via the reset switch.

SYSTEMS, DEVICES, AND METHODS FOR BEAM MISALIGNMENT DETECTION
20220065611 · 2022-03-03 ·

Embodiments of systems, devices, and methods relating to a beam system. An example method of detecting beam misalignment a beam system includes detecting beam misalignment in an injector system of the beam system. The example method further includes detecting beam misalignment in an accelerator system of the beam system.

Methods of evaluating performance of an atmospheric pressure ionization system

The present invention comprises novel methods of continuously monitoring the performance of an atmospheric pressure ionization (API) system. The methods of the invention allow for improved quality monitoring of the processes that leads to the formation of ions at atmospheric pressure. The methods of the invention further allow for continuously monitoring for the quality of the ion formation process in API without the addition of extraneous material (such as labelled compounds or control known compounds) to the system being monitored.

ARC DETECTOR FOR DETECTING ARCS, PLASMA SYSTEM AND METHOD OF DETECTING ARCS
20210156893 · 2021-05-27 ·

An arc detector for detecting arcs in an RF plasma system includes at least two inputs configured to connect to an RF source, at least one output configured to connect to a plasma load, and a 3 dB coupler connected to the at least two inputs and the at least one output. The arc detector further includes a measuring device configured to measure at least two physical quantities transmitted between the 3 dB coupler and the at least one output, a determinator configured to determine an evaluation quantity based on the at least two physical quantities, and a differentiator configured to differentiate the evaluation quantity. The arc detector additionally includes a comparator configured to compare the output quantity of the differentiator with a reference value indicative of an arc.

SYSTEMS, DEVICES, AND METHODS FOR BEAM POSITION MONITORING AND BEAM IMAGING
20210166832 · 2021-06-03 ·

Embodiments of systems, devices, and methods relate to fast beam position monitoring for detecting beam misalignment in a beam line. In an example, a fast beam position monitor includes a plurality of electrodes extending into an interior of a component of a beam line. The fast beam position monitor is configured to detect a position of a beam passing through the component of the beam line based on beam halo current. Embodiments of systems, devices, and methods further relate to noninvasively monitoring parameters of beams advancing along a beam line. In examples, gas is puffed into a pumping chamber along a beam line. One or more beam parameters are measured from fluorescence resulting from collisions of energetic beam particulates of a beam advancing through the beam line.

IMPROVING SAFETY AROUND A LINEAR ACCELERATOR

A linear accelerator system comprising a source arranged to produce a pulsed beam of charged particles, a linear accelerator string arranged to accelerate the pulsed beam up to a predetermined range of energies, and a pre-acceleration stage interposed between the source and the linear accelerator string and arranged to accelerate the pulsed beam up to an energy suitable for beam insertion into the linear accelerator string and perform bunching of the pulsed beam. An average current detector is arranged to measure an average current in the pulsed beam, the average current detector comprising at least one non-interceptive sensor placed at an input side of the linear accelerator string, downstream of the pre-acceleration stage, the sensor being responsive to the pulsed beam passing thereby.

FAST FARADAY CUP FOR MEASURING THE LONGITUDINAL DISTRIBUTION OF PARTICLE CHARGE DENSITY IN NON-RELATIVISTIC BEAMS
20210141005 · 2021-05-13 ·

A Fast Faraday Cup includes a group of electrodes including a grounded electrode having a through hole and a collector electrode configured with a blind hole that functions a collector hole. The electrodes are configured to allow a beam (e.g., a non-relativistic beam) to fall onto the grounded electrode so that the through hole cuts a beamlet that flies into the collector hole and facilitates measurement of the longitudinal distribution of particle charge density in the beam. The diameters, depths, spacing and alignment of the collector hole and the through hole are controllable to enable the Fast Faraday day cup to operate with a fast response time (e.g., fine time resolution) and capture secondary particles.

CURRENT DETECTION DEVICE AND SPECTROMETER USING THE SAME

A device of detecting a current from a sensor is disclosed. The device includes an integrating circuit including a network of capacitors for providing a gain setting and configured to convert the current to a voltage ramp over a length of integration time, the integrating circuit further including a reset switch configured to connect an input and an output of the network of capacitors; an ADC configured to digitize the voltage ramp into a plurality of voltage samples; and a set of modules including an analyzing module configured to analyze the plurality of voltage samples to determine a slope of the voltage ramp; an outputting module configured to determine a magnitude of the current based on the slope of the voltage ramp and the gain setting; and a reconfiguring module that is configured to reconfigure the network of capacitors and reset the voltage ramp via the reset switch.

DEVICE AND METHOD FOR DETECTING THE MASS CENTER OF A BEAM OF ELECTRIC CHARGES

A method for detecting the position of the mass center of a passing-through beam of electric charges in a duct, having a passage section with a plurality of detection faces directed thereto is presented. The method includes: arranging couples of detecting elements, so that each couple detects a space area divided into two half-areas by an intermediate plane between the detecting elements of the respective couple; obtaining, from each detecting element, a signal thereby produced representing the distance thereof from the mass center to be detected; comparing the signals produced by each detecting element, by obtaining a digital signal showing the greater proximity of the mass center to one of the detecting element of the couple; and composing the digital signals produced by the couples of detecting elements, by identifying the cross-section of the beam of electric charges to which the mass center of the beam electric charges belongs.