Microchannel plate detector
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Unique capabilities and applications of Microchannel Plate (MCP) detectors with Medipix/Timepix readout Open
The development of highly pixelated fast Medipix/Timepix readout enabled a large number of novel hybrid detectors, where incoming particles/photons are initially converted into a measureable charge, typically exceeding 1000 electrons. Amon…
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Absolute ion detection efficiencies of microchannel plates and funnel microchannel plates for multi-coincidence detection Open
Modern momentum imaging techniques allow for the investigation of complex molecules in the gas phase by detection of several fragment ions in coincidence. For these studies, it is of great importance that the
\nsingle-particle detection ef…
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A wide-field TCSPC FLIM system based on an MCP PMT with a delay-line anode Open
We report on the implementation of a wide-field time-correlated single photon counting (TCSPC) method for fluorescence lifetime imaging (FLIM). It is based on a 40 mm diameter crossed delay line anode detector, where the readout is perform…
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Comparison of implosion core metrics: A 10 ps dilation X-ray imager vs a 100 ps gated microchannel plate Open
The dilation x-ray imager (DIXI) [T. J. Hilsabeck et al., Rev. Sci. Instrum. 81, 10E317 (2010); S. R. Nagel et al., ibid. 83, 10E116 (2012); S. R. Nagel et al., ibid. 85, 11E504 (2014)] is a high-speed x-ray framing camera that uses the pu…
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Secondary electron emission characteristics of Al2O3 coatings prepared by atomic layer deposition Open
Secondary electron emission (SEE) plays a crucial role in the gain performance of devices, such as electron multipliers and microchannel plates (MCPs). Gain performance could be improved by increasing the secondary electron yield (SEY) of …
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A 1D Lyman-alpha profile camera for plasma edge neutral studies on the DIII-D tokamak Open
A one dimensional, absolutely calibrated pinhole camera system was installed on the DIII-D tokamak to measure edge Lyman-alpha (Ly-α) emission from hydrogen isotopes, which can be used to infer neutral density and ionization rate profiles.…
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Extreme Ultraviolet to Visible Dispersed Single Photon Detection for Highly Sensitive Sensing of Fundamental Processes in Diverse Samples Open
The detection of a single photon is the most sensitive method for sensing of photon emission. A common technique for single photon detection uses microchannel plate arrays combined with photocathodes and position sensitive anodes. Here, we…
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Picosecond wide-field time-correlated single photon counting fluorescence microscopy with a delay line anode detector Open
We perform wide-field time-correlated single photon counting-based fluorescence lifetime imaging (FLIM) with a crossed delay line anode image intensifier, where the pulse propagation time yields the photon position. This microchannel plate…
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Microchannel plate detector technology potential for LUVOIR and HabEx Open
Microchannel plate (MCP) detectors have been the detector of choice for ultraviolet (UV) instruments onboard many NASA missions. These detectors have many advantages, including high spatial resolution (<20 mu m), photon counting, radiation…
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A high resolution ion microscope for cold atoms Open
We report on an ion-optical system that serves as a microscope for ultracold\nground state and Rydberg atoms. The system is designed to achieve a\nmagnification of up to 1000 and a spatial resolution in the 100 nm range,\nthereby surpassin…
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A next-generation LHC heavy-ion experiment Open
The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical lay…
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The Gain and Time Characteristics of Microchannel Plates in Various Channel Geometries Open
\n\tMicrochannel plates (MCPs) are widely used as electron, ion, and X-ray detectors. The gain factor and time resolution of the MCP are strongly dependent on its operating and geometry parameters (applied voltage, length-to-diameter ratio…
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Characterisation of new gated optical image intensifiers for fluorescence lifetime imaging Open
We report the characterisation of gated optical image intensifiers for fluorescence lifetime imaging, evaluating the performance of several different prototypes that culminate in a new design that provides improved spatial resolution confe…
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Dilation x-ray framing camera and its temporal resolution uniformity Open
An x-ray framing camera based on pulse-dilation technology is reported. This camera first dilates the electron signal generated from a pulsed photo-cathode (PC), and then detects the dilated electron pulse by using a gated microchannel pla…
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Sub-millisecond electron density profile measurement at the JET tokamak with the fast lithium beam emission spectroscopy system Open
Diagnostic alkali atom (e.g., lithium) beams are routinely used to diagnose magnetically confined plasmas, namely, to measure the plasma electron density profile in the edge and the scrape off layer region. A light splitting optics system …
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Design and characterization of a magnetic bottle electron spectrometer for time-resolved extreme UV and X-ray photoemission spectroscopy of liquid microjets Open
We describe a magnetic bottle time-of-flight electron spectrometer designed for time-resolved photoemission spectroscopy of a liquid microjet using extreme UV and X-ray radiation. The spectrometer can be easily reconfigured depending on ex…
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A new electron-ion coincidence 3D momentum-imaging method and its application in probing strong field dynamics of 2-phenylethyl-<i>N</i>, <i>N</i>-dimethylamine Open
We report the development of a new three-dimensional (3D) momentum-imaging setup based on conventional velocity map imaging to achieve the coincidence measurement of photoelectrons and photo-ions. This setup uses only one imaging detector …
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High‐speed MCP anodes for high time resolution low‐energy charged particle spectrometers Open
The time resolution of low‐energy charged particle measurements is becoming higher and higher. In order to realize high time resolution measurements, a 1‐D circular delay line anode has been developed as a high‐speed microchannel plate (MC…
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Absolute calibration of GafChromic film for very high flux laser driven ion beams Open
We report on the calibration of GafChromic HD-v2 radiochromic film in the extremely high dose regime up to 100 kGy together with very high dose rates up to 7 × 1011 Gy/s. The absolute calibration was done with nanosecond ion bunches at the…
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Demonstration of Dynamics of Nanosecond Discharge in Liquid Water Using Four-Channel Time-Resolved ICCD Microscopy Open
The microscopic physical mechanisms of micro-discharges produced in liquid waters by nanosecond high-voltage pulses are quite complex phenomena, and relevant coherent experimentally supported theoretical descriptions are yet to be provided…
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Ion-ion coincidence imaging at high event rate using an in-vacuum pixel detector Open
A new ion-ion coincidence imaging spectrometer based on a pixelated complementary metal-oxide-semiconductor detector has been developed for the investigation of molecular ionization and fragmentation processes in strong laser fields. Used …
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Photon-counting MCP/Timepix detectors for soft X-ray imaging and spectroscopic applications Open
Detectors with microchannel plates (MCPs) provide unique capabilities to detect single photons with high spatial (<10 µm) and timing (<25 ps) resolution. Although this detection technology was originally developed for applications with low…
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Scanning transmission imaging in the helium ion microscope using a microchannel plate with a delay line detector Open
A detection system based on a microchannel plate with a delay line readout structure has been developed to perform scanning transmission ion microscopy (STIM) in the helium ion microscope (HIM). This system is an improvement over other exi…
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Angular-Resolved Thomson Parabola Spectrometer for Laser-Driven Ion Accelerators Open
This article reports the development, construction, and experimental test of an angle-resolved Thomson parabola (TP) spectrometer for laser-accelerated multi-MeV ion beams in order to distinguish between ionic species with different charge…
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A demonstration of ultra-high time resolution with a pulse-dilation photo-multiplier Open
A novel microchannel plate (MCP) intensified high-speed photo-multiplier tube making use of pulse-dilation[1] has been tested. A ramped photo-cathode voltage followed by a relatively long drift region results in a transit time which is dep…
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Synchronous gating in dilation x-ray detector without 1:1 image ratio Open
An x-ray detector using a pulse-dilation technology to achieve high temporal resolution is reported. The electron pulse generated from the photo-cathode (PC) is first dilated by a pulse-dilation device and then imaged onto the microchannel…
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Thomson parabola and time-of-flight detector cross-calibration methodology on the ALLS 100 TW laser-driven ion acceleration beamline Open
We report on the cross-calibration of Thomson Parabola (TP) and Time-of-Flight (TOF) detectors as particle diagnostics, implemented on the most recent setup of the ALLS 100 TW laser-driven ion acceleration beamline. The Microchannel Plate …
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A wide field of view plasma spectrometer Open
We present a fundamentally new type of space plasma spectrometer, the wide field of view plasma spectrometer, whose field of view is > 1.25 π ster using fewer resources than traditional methods. The enabling component is analogous to a pin…
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Time-resolved RIXS experiment with pulse-by-pulse parallel readout data collection using X-ray free electron laser Open
Time-resolved resonant inelastic X-ray scattering (RIXS) is one of the developing techniques enabled by the advent of X-ray free electron laser (FEL). It is important to evaluate how the FEL jitter, which is inherent in the self-amplified …
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Upgrade of the ALICE ITS in LS3 Open
ALICE is planning to replace its three innermost tracking layers with a fully cylindrical, bent sili- con tracker during LHC Long Shutdown 3 (LS3, targeting 2024-25). The new detector will reach an unprecedented low material budget of belo…