UV MCP Detectors for WSO-UV: Cross Strip &lt;newline/&gt;Anode and Readout Electronics

Diebold, S.; Barnstedt, Jürgen; Hermanutz, S.; Kalkuhl, C.; Kappelmann, N.; Pfeifer, M.; Schanz, T.; Werner, K.

doi:10.1109/tns.2013.2248096

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…7. In contrast to the original design of cross strip anodes with two insulated layers of strips (see Diebold et al (2013)), our coplanar anodes are made from one surface electrode layer only. The originally lower strips are now composed of 63 individual electrode pads, which are connected by vias to a buried connection path within the ceramics body.…”

Section: Coplanar Cross Strip Anodementioning

confidence: 99%

MCP detector development for UV space missions

Conti

Barnstedt

Hanke

et al. 2018

Astrophys Space Sci

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We are developing imaging and photon counting UV-MCP detectors, which are sensitive in the wavelength range from far ultraviolet to near ultraviolet. A good quantum efficiency, solar blindness and high spatial resolution is the aim of our development. The sealed detector has a Cs-activated photoactive layer of GaN (or similarly advanced photocathode), which is operated in semitransparent mode on (001)-MgF 2 . The detector comprises a stack of two long-life MCPs and a coplanar cross strip anode with advanced readout electronics. The main challenge is the flawless growth of the GaN photocathode layer as well as the requirements for the sealing of the detector, to prevent a degradation of the photocathode. We present here the detector concept and the experimental setup, examine in detail the status in the production and describe the current status of the readout electronics development.

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Section: Coplanar Cross Strip Anodementioning

confidence: 99%

MCP detector development for UV space missions

Conti

Barnstedt

Hanke

et al. 2018

Astrophys Space Sci

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“…We develop solar blind photon counting microchannel plate (MCP) UV detectors with high quantum efficiency and high spatial resolution (see also [1]) to be used onboard future astronomical missions observing in the ultraviolet (UV) wavelength range [2]. In this wavelength range hot white dwarfs, the interstellar gas in galaxies or the atmospheres of extrasolar planets that transit their host star can be studied, among numerous other objects (cf.…”

Section: Jinst 9 C03059mentioning

confidence: 99%

Low power readout electronics for a UV MCP detector with cross strip anode

Pfeifer¹,

Diebold²,

Barnstedt³

et al. 2014

J. Inst.

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After the shutdown of the Hubble Space Telescope in a few years, new astronomical missions for the ultraviolet (UV) wavelength range between 91 and 300 nm with improved optics and detectors will be necessary. This fact drives our development of solar blind photon counting microchannel plate (MCP) UV detectors with high quantum efficiency, high spatial resolution, and low power readout electronics. We plan to use a cross-strip anode (XSA), which has a high spatial resolution and additionally allows a low gain operation of the MCPs which leads to an increased lifetime of the MCPs compared to detectors with other anode types. The main difficulty in implementing an XSA in a detector for space applications is the need for a (pre-) amplifier, a shaper, and an ADC for each of the strips, which means large power consumption and spatial requirements. The solution we are studying is the application of the so-called Beetle chip. This allows for an implementation of a readout electronics for an XSA with a power consumption of less then 10 W. For the tests of our readout electronics prototype, and for the burn-in of the MCPs, we recently finished a setup in a vacuum chamber that is similar to the configuration in the final detector. We present a brief overview of our detector design and details of the readout electronics setup as well as details of the setup in our vacuum chamber.

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“…To the best of our knowledge, an XS detector can achieve a high spatial resolution of 5-25 µm and a high count rate of 10 7 counts/s, and an XS detector has a long lifetime. XS anode detectors, with their excellent properties, are used in long-range space exploration systems such as the World Space Observatory-Ultraviolet (WSO-UV) [17] and the Colorado High-Resolution Echelle Stellar Spectrograph (CHESS) [18].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of a Long-Range Target Localization Problem Based on an XS Anode Single-Photon Detector

Zhai,

Wang,

Wang

et al. 2024

Applied Sciences

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With the development of space detection technology, the detection of long-range dark and weak space targets has become an important issue in space detection. Cross-strip anode photon imaging detectors can detect weak light signals with extremely low dark count rates and are well suited to applications in long-range target detection systems. Since cross-strip anode detectors are expensive to develop and fabricate, a theoretical analysis of the detection process is necessary before fabrication. During the detection process, due to the dead time of the detector, some photon-generated signals are aliased, and the true arrival position of the photon cannot be obtained. These aliased signals are usually removed directly in the conventional research. But in this work, we find that these aliased signals are not meaningless and can be applied to center of mass detection. Specifically, we model the probabilistic mechanisms of the detection data, compute the average photon positions using aliased and non-aliased data and prove that our method provides a lower variance compared to the conventional method, which only uses non-aliased data. Simulation experiments are designed to further verify the effectiveness of the aliasing data for detecting the center of mass. The simulation results support that our method of utilizing the aliasing data provides more accurate detection results than that of removing the aliasing data.

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UV MCP Detectors for WSO-UV: Cross Strip <newline/>Anode and Readout Electronics

Cited by 10 publications

References 10 publications

MCP detector development for UV space missions

MCP detector development for UV space missions

Low power readout electronics for a UV MCP detector with cross strip anode

Modeling and Analysis of a Long-Range Target Localization Problem Based on an XS Anode Single-Photon Detector

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