A5040703535- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Advanced Semiconductor Detectors and Materials
- CCD and CMOS Imaging Sensors
- Advanced X-ray and CT Imaging
- Nuclear Physics and Applications
- Astrophysical Phenomena and Observations
- Analog and Mixed-Signal Circuit Design
- Advancements in Semiconductor Devices and Circuit Design
- Gamma-ray bursts and supernovae
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- X-ray Spectroscopy and Fluorescence Analysis
- Medical Imaging Techniques and Applications
- Advanced X-ray Imaging Techniques
- Nuclear physics research studies
- Radiation Effects in Electronics
- Semiconductor Quantum Structures and Devices
- Particle physics theoretical and experimental studies
- Advancements in PLL and VCO Technologies
- Particle accelerators and beam dynamics
- Semiconductor materials and devices
- Dark Matter and Cosmic Phenomena
- Planetary Science and Exploration
University of Michigan–Ann Arbor
2017-2025
Brookhaven National Laboratory
2010-2024
United States Naval Research Laboratory
2024
Michigan United
2023-2024
Institute for Space Astrophysics and Planetology
2024
Southwest Research Institute
2024
Goddard Space Flight Center
2024
Ormet Circuits (United States)
2024
Ehime University
2023
Syosset Hospital
2009-2022
The low-noise operation of readout electronics in a liquid argon time projection chamber (LArTPC) is critical to properly extract the distribution ionization charge deposited on wire planes TPC, especially for induction planes. This paper describes characteristics and mitigation observed noise MicroBooNE detector. MicroBooNE's single-phase LArTPC comprises two one collection sense plane with total 8256 wires. Current induced each TPC amplified shaped by custom low-power, ASICs immersed...
Maia is an advanced system designed specifically for scanning x-ray fluorescence microprobe applications. It consists of a large array photodiode detectors and associated signal processing, closely coupled to FPGA-based control analysis system. In this paper we will describe the architecture construction
We present VMM1, the first prototype of a family front-end ASICs designed for ATLAS muon upgrade. The ASIC will operate with MICROMEGAS and TGC detectors, providing charge timing measurements along other features including sub-hysteresis discrimination, address event in real time, digital output per channel Time-over-Threshold measurements. shaper, via concept Delayed Dissipative Feedback (DDF), supports analog dynamic ranges excess 10 \thinspace000. With capacitance 200 pF nominal peaking...
Two 20 mm × 15 pixelated CZT detectors made by eV-Products were characterized using the new H3D Application Specific Integrated Circuits (ASIC) readout system developed Instrumentation Division at Brookhaven National Laboratory. The ASIC is capable of reading out energy and timing signals from 121 anode pixels planar cathode electrode one detector simultaneously. has a measured electronic noise ~2.2 keV FWHM with dynamic range to 3.0 MeV. two achieved resolution 0.48% 0.60% FWHM,...
As a result of cooperation between Brookhaven National Laboratory and eV Products generation high performance readout ASICs was developed. The ASICs, realized in CMOS 0.5 /spl mu/m technology, are available several different versions, single or multi-channel with unipolar bipolar shaper, view their use research, spectroscopy, medical, safeguard industrial applications. Four innovative circuit solutions implemented the ASICs: (i) linearity compensated continuous reset system which self-adapts...
The optimization of the input MOSFET for charge amplifiers in deep submicron technologies is discussed. After a review traditional approach, impact properly modeling equivalent series noise and gate capacitance presented. It shown that enhanced model, when compared to classical, produces different resolution estimate result. minimum channel length maximum allocated power are not always best choice terms resolution. Also, an optimized front-end, low frequency contribution Equivalent Noise...
As a result of cooperation between Brookhaven National Laboratory and eV Products generation high performance readout ASICs was developed. One the novel circuit solutions implemented in is baseline holder (BLH), system which provides setting stabilization output both at low frequency rate operation. The BLH conceptually different from restorer (BLR). With peaking voltage 2 V (10 fC), time 400 ns 500 kHz, an asymptotic shift <8 mV measured periodic case. A resolution higher than 12 bit found...
Synchrotron X-ray fluorescence (SXRF) and absorption spectroscopy (XAS) have become standard tools to measure element concentration, distribution at micrometer- nanometer-scale, speciation (e.g., nature of host phase; oxidation state) in inhomogeneous geomaterials. The new Maia detector system provides a quantum leap for the method terms data acquisition rate. It is now possible rapidly collect fully quantitative maps major trace elements micrometer spatial resolution over areas as large 1 ×...
We present a front-end application-specific integrated circuit (ASIC) for wire based time-projection-chamber (TPC) operating in liquid Argon (LAr). The LAr TPC will be used long baseline neutrino oscillation experiments. ASIC must provide low-noise readout of the signals induced on wires, digitization those at 2 MSamples/s, compression, buffering and multiplexing. A resolution better than 1000 rms electrons 200 pF input capacitance an range 300 fC is required, along with low power operation...
As a result of cooperation between Brookhaven National Laboratory and eV Products generation high performance readout ASICs was developed. One the novel circuit solutions implemented in is fully compensated continuous reset system capable handling detector leakage currents up to several tens nA with linearity noise contribution always lower than shot detector. The based on use MOSFET operating above threshold saturation. full compensation obtained by using suitable replica MOSFET....
The choice between cold and warm electronics (inside or outside the cryostat) in very large LAr TPCs (>5-10 ktons) is not an issue, but it rather a major cryostat design issue. This because location of signal processing has direct far reaching effect on design, indirect TPC electrode (sense wire spacing, length drift distance), significant performance. All these factors weigh so overwhelmingly favor that remains optimal solution for TPCs. In this paper noise considerations are summarized,...
X-ray polarimetry promises to give qualitatively new information about high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, neutron stars, and gamma-ray bursts. We designed, built tested a polarimeter, X-Calibur, be used in the focal plane of balloon-borne InFOCμS grazing incidence telescope. X-Calibur combines low-Z scatterer with Cadmium Zinc Telluride (CZT) detector assembly measure polarization 20–80 keV X-rays making use fact that...
We investigated the feasibility of long-drift-time CdZnTe (CZT) gamma-ray detectors, fabricated from CZT material produced by Redlen Technologies. crystals with cross-section areas 5 × mm2 and 6 thicknesses 20-, 30-, 40-, 50-mm were configured as 3D position-sensitive drift detectors read out using a front-end ASIC. By correcting electron charge losses caused defects in crystals, we demonstrated high performance for relatively thick unselected material.
The VMM3a is a custom low-noise application-specific integrated circuit. It intended to be used in the front-end readout electronics of both Micromegas and sTGC detectors ATLAS New Small Wheels upgrade project at CERN. fabricated 130-nm GlobalFoundries 8RF-DM process. 64 channels with highly configurable parameters, although designed for specific project, can meet processing needs signals from various detector types several other applications. In this note, VMM3a, which production version...
We give an overview of the science objectives and mission design Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X) observatory, which has been proposed as a NASA probe-class (~$1.5B) in response to Astro2020 recommendation X-ray probe.
We start with an analysis of the configurations commonly adopted to implement linear shapers. show that, once ENC from charge amplifier is defined, dynamic range system set by voltage swing and value capacitance realizing poles. The configuration used realize poles has also impact, those based on passive components in feedback are expected offer a higher than ones that use both active components, like scaling mirrors. Finally, we introduce concept delayed dissipative (DDF), which consists...