A UV Sensitive Integrated Micromegas with Timepix Readout

This article presents a detector system consisting of three components, a CMOS imaging array, a gaseous-detector structure with a Micromegas layout and a UV-photon sensitive CsI reflective photocathode. All three elements have been monolithically integrated using simple post-processing steps. The Micromegas structure and the CMOS imaging chip are not impacted by the CsI deposition. The detector operated reliably in He/isobutane mixtures and attained charge gains with single photons up to a level of 6 \cdot 10^4. The Timepix CMOS array permitted high resolution imaging of single UV-photons. The system has an MTF50 of 0.4 lp/pixel which corresponds to app. 7 lp/mm.Comment: 4 pages with 8 figures. Submitted to Nucl. Instr. and Meth. A (Elsevier) for proceedings of VCI 2010

Dataset for "Performance of a Gridpix detector based on the Timepix3 chip"

<p>This is the data of the analysed run described in the paper "Performance of a Gridpix detector based on the Timepix3 chip"  (to be submitted).</p> <p>The data can be converted and analysed with the scripts found at https://github.com/KeesLigtenberg/GridpixTrackFitter</p> <ul> <li>Raw data file from telescope in "mimosa_telescope_nikhef_m26_telescope_scan.h5"</li> <li>Raw data from Timepix3 converted to root tree in "W0015_H04-170713-071936-347.root"</li> <li>Converted telescope data in "mimosa_telescope_nikhef_m26_telescope_scan_combined.root" (combined because all planes are combined)</li> <li>Converted Timepix3 data file "W0015_H04-170713-071936-347_converted.root"</li> <li>"Alignment.dat" and "ToTCorrection.dat" are alignment files</li> <li>"example_converted.root" is a smaller file that can be used to get started with the data</li> </ul

Potential applications of electron emission membranes in medicine

With a miniaturised stack of transmission dynodes, a noise free amplifier is being developed for the detection of single free electrons, with excellent time- and 2D spatial resolution and efficiency. With this generic technology, a new family of detectors for individual elementary particles may become possible. Potential applications of such electron emission membranes in medicine are discussed