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Silicon photomultipliers are very versatile photo detectors due to their high photon detection efficiency, fast response, single photon counting capability, high amplification, and their insensitivity to magnetic fields. At our institute we…

Nuclear Experiment · Physics 2015-05-18 G. S. M. Ahmed , P. Bühler , J. Marton , K. Suzuki

Charge-transfer loss on the Wide Field Planetary Camera 2 (WFPC2) onboard the Hubble Space Telescope is a primary source of uncertainty in stellar photometry obtained with this camera. This effect, discovered shortly after the camera was…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 Andrew E. Dolphin

Photocount statistics are an important tool for the characterization of electromagnetic fields, especially for fields with an irrelevant phase. In the microwave domain, continuous rather than discrete measurements are the norm. Using a…

Quantum Physics · Physics 2016-04-13 Stéphane Virally , Jean Olivier Simoneau , Christian Lupien , Bertrand Reulet

Cameras are the defacto sensor. The growing demand for real-time and low-power computer vision, coupled with trends towards high-efficiency heterogeneous systems, has given rise to a wide range of image processing acceleration techniques at…

Hardware Architecture · Computer Science 2017-10-18 Amrita Mazumdar , Thierry Moreau , Sung Kim , Meghan Cowan , Armin Alaghi , Luis Ceze , Mark Oskin , Visvesh Sathe

Photodetectors are key optoelectronic building blocks performing the essential optical-to-electrical signal conversion, and unlike solar cells, operate at a specific wavelength and at high signal or sensory speeds. Towards achieving high…

Applied Physics · Physics 2020-07-01 Volker J. Sorger , Rishi Maiti

The electric dipole moment of the electron (eEDM) can be measured with high precision using heavy polar molecules. In this paper, we report on a series of new techniques that have improved the statistical sensitivity of the YbF eEDM…

We demonstrate ground-based submillimagnitude (<10^-3) photometry of widely separated bright stars using snapshot CCD imaging. We routinely achieved this photometric precision by (1) choosing nearby comparison stars of a similar magnitude…

Earth and Planetary Astrophysics · Physics 2015-05-30 Andrew W. Mann , Eric Gaidos , Greg Aldering

The development of single-photon counting detectors and arrays has made tremendous steps in recent years, not the least because of various new applications in, e.g., LIDAR devices. In this work, a 3D imaging device based on real thermal…

Multichip modules (MCM) with 4 single photon counting MPEC 2.3 chips bump bonded to 1.3 cm x 1.3 cm large CdTe and Si semiconductor sensors as well as to single chip pixel detectors have been successfully built and operated. The MPEC 2.3…

Multiple-Amplifier Sensing (MAS) charge-coupled devices (CCDs) have recently been shown to be promising silicon detectors that meet noise sensitivity requirements for next generation Stage-5 spectroscopic surveys and potentially, future…

Instrumentation and Methods for Astrophysics · Physics 2025-04-30 Kenneth W. Lin , Abby Bault , Armin Karcher , Julien Guy , Stephen E. Holland , William F. Kolbe , Peter E. Nugent

We describe a scalable, high-speed, and robust architecture for measurement-based quantum-computing with trapped ions. Measurement-based architectures offer a way to speed-up operation of a quantum computer significantly by parallelizing…

Quantum Physics · Physics 2009-05-01 R. Stock , D. F. V. James

We present a comparison between space charge calculations and direct measurements of the transverse phase space for space charge dominated electron bunches after a high voltage photoemission DC gun followed by an emittance compensation…

Purpose: Current photon-counting computed tomography detectors are limited to a pixel size of around 0.3 mm-0.5 mm due to excessive charge sharing degrading the dose efficiency and energy resolution as the pixels become smaller. In this…

Medical Physics · Physics 2024-01-18 Rickard Brunskog , Mats Persson , Zihui Jin , Mats Danielsson

The simplicity in the fabrication of photoconductors makes them a valuable choice to investigate optoelectronic properties of colloidal quantum dot (cQD) films. Lateral photoconductors generally require a large size, in the mm2, and are…

Gigahertz (GHz) imaging using hard X-rays ($\gtrsim$ 10 keV) can be useful to high-temperature plasma experiments, as well as research using coherent photons from synchrotron radiation and X-ray free electron lasers. GHz framing rate can be…

Instrumentation and Detectors · Physics 2023-08-22 Zhehui Wang , C. L. Morris , J. S. Kapustinsky , K. Kwiatkowski , S. -N. Luo

For MeV gamma-ray astronomy, we have developed an electron-tracking Compton camera (ETCC) as a MeV gamma-ray telescope capable of rejecting the radiation background and attaining the high sensitivity of near 1 mCrab in space. Our ETCC…

The performance of a silicon photomultiplier has been assessed at low temperature in order to evaluate its suitability as a scintillation readout device in liquid argon particle physics detectors. The gain, measured as 2.1E6 for a constant…

Instrumentation and Detectors · Physics 2011-06-09 P. K. Lightfoot , G. J. Barker , K. Mavrokoridis , Y. A. Ramachers , N. J. C. Spooner

The development of high-performance photocathodes is a key challenge for future accelerator and particle physics applications. In this paper photocathode growth through molecular beam epitaxy is introduced as a promising technique to obtain…

Instrumentation and Detectors · Physics 2013-10-11 Junqi Xie , Marcel Demarteau , Robert Wagner

There are several applications which require high position resolution UV imaging. For these applications we have developed and successfully tested a new version of a 2D UV single photon imaging detector based on a microgap RPC. The main…

Instrumentation and Detectors · Physics 2009-11-11 P. Fonte , T. Francke , N. Pavlopoulos , V. Peskov , I. Rodionov