Nano-engineered ultra-high-gain microchannel plates

Beaulieu, David R.; Gorelikov, D.; Rouffignac, Philippe de; Saadatmand, K.; Stenton, K.; Sullivan, Neal T.; Tremsin, Anton S.

doi:10.1016/j.nima.2009.03.134

Cited by 43 publications

(15 citation statements)

References 12 publications

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“…A recent and innovative approach has been proposed and realized by Beaulieu et al [72]. Standard MCPs undergo an additional atomic layer deposition (ALD) process that substantially increases their gain and improves their stability as a function of extracted charge.…”

Section: Recent Developmentsmentioning

confidence: 99%

Micro-channel plates and vacuum detectors

Gys

2015

Nuclear Instruments and Methods in Physics Research Section A:

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a b s t r a c tA micro-channel plate is an array of miniature electron multipliers that are each acting as a continuous dynode chain. The compact channel structure results in high spatial and time resolutions and robustness to magnetic fields. Micro-channel plates have been originally developed for night vision applications and integrated as an amplification element in image intensifiers. These devices show single-photon sensitivity with very low noise and have been used as such for scintillating fiber tracker readout in high-energy physics experiments. Given their very short transit time spread, micro-channel plate photomultiplier tubes are also being used in time-of-flight and particle identification detectors. The present paper will cover the history of the micro-channel plate development, basic features, and some of their applications. Emphasis will be put on various new manufacturing processes that have been developed over the last few years, and that result in a significant improvement in terms of efficiency, noise, and lifetime performance.

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Section: Recent Developmentsmentioning

confidence: 99%

Micro-channel plates and vacuum detectors

Gys

2015

Nuclear Instruments and Methods in Physics Research Section A:

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“…There is a growing demand for fast-gate, large-area imagers in several areas of actinide science, highenergy density physics , and ignition diagnostics (Fittinghoff 2011), as well as in general high-energy, high-resolution gated particle detection (Beaulieu 2009 Historically, nanosecond-gated imaging devices have been limited to small diameters (18 mm) and diminished quantum efficiency (<10%). Photocathode charging on this fast time scale requires more conduction than a thin (50 Å) film can allow, while thicker metal films attenuate the incident light beyond acceptable limits.…”

Section: Introductionmentioning

confidence: 99%

Nevada National Security Site Site-Directed Research and Development FY 2014 Annual Report

Bender

2015

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“…MCP-based detectors can have a combination of unique properties such as high gain, high spatial resolution, high timing resolution, and very low background rate [1][2][3][4] . MCPs can be used in a wide variety of detector applications including low-level signal detection, photo-detection, astronomy, electron microscopy, time-of-flight mass spectrometry, molecular and atomic collision studies, fluorescence imaging applications in biotechnology, field emission displays, and cluster physics [1][2][3][4][5][6][7] . The same MCP-based technology is used to make visible light image intensifiers for night vision goggles and binoculars [8] .…”

Section: Introductionmentioning

confidence: 99%

“…Although several attempts have been made to produce MCPs with alternative processing strategies such as silicon micromachining [11,12] and lithographic etching of anodic alumina [13] , none of those technologies have matured enough to produce practical, large area MCPs. Recently, there have been efforts to improve MCP gain, resolution, and performance by functionalizing conventional, non-activated MCPs with various thin film processes [2,13] . However, there are no detailed reports on economical, large area MCPs fabrication.…”

Section: Introductionmentioning

confidence: 99%

A novel atomic layer deposition method to fabricate economical and robust large area microchannel plates

et al. 2011

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We demonstrate a cost-effective and robust route to fabricate large-area microchannel plate (MCP) detectors, which will open new potential in larger area MCP-based detector technologies. For the first time, using our newly developed process flow we have fabricated large area (8"x8") MCPs. We used atomic layer deposition (ALD), a powerful thin film deposition technique, to tailor the electrical resistance and secondary electron emission (SEE) properties of large area, low cost, borosilicate glass capillary arrays. The self limiting growth mechanism in ALD allows atomic level control over the thickness and composition of resistive and SEES layers that can be deposited conformally on high aspect ratio capillary glass arrays. We have developed several robust and reliable ALD processes for the resistive coatings and SEE layers to give us precise control over the resistance (10 6 -10 10 Ω) and SEE coefficient (up to 5). This novel approach allows the functionalization of microporous, insulating substrates to produce MCPs with high gain and low noise. These capabilities allow a separation of the substrate material properties from the amplification properties. Here we describe a complete process flow to produce large area MCPs.

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Nano-engineered ultra-high-gain microchannel plates

Cited by 43 publications

References 12 publications

Micro-channel plates and vacuum detectors

Micro-channel plates and vacuum detectors

Nevada National Security Site Site-Directed Research and Development FY 2014 Annual Report

A novel atomic layer deposition method to fabricate economical and robust large area microchannel plates

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