The SATRAM Timepix spacecraft payload in open space on board the Proba-V satellite for wide range radiation monitoring in LEO orbit

Granja, Carlos; Polansky, Stepan; Vykydal, Z.; Pospı́šil, S.; Owens, A.; Kozacek, Zdenek; Mellab, Karim; Šimčák, Marek

doi:10.1016/j.pss.2016.03.009

Cited by 69 publications

(49 citation statements)

References 63 publications

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“…Four of these have been in near continuous operation since 2012, operated via an onboard laptop. The second use of Medipix in space was on the European Space Agency (ESA) Proba V mission, launched on the 7th May 2013 to Low Earth Orbit (LEO) with an altitude of 820km, with the spacecraft payload Space Application of Timepix Radiation Monitor (SATRAM, Granja et al, 2016) onboard. SATRAM carries a single Timepix detector and is operating and continuously taking data today.…”

Section: Introductionmentioning

confidence: 99%

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

Furnell

Shenoy

Fox

et al. 2019

Advances in Space Research

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The Langton Ultimate Cosmic ray Intensity Detector (LUCID) is a payload onboard the satellite TechDemoSat-1, used to study the radiation environment in Low Earth Orbit (∼635km). LUCID operated from 2014 to 2017, collecting over 2.1 million frames of radiation data from its five Timepix detectors on board. LUCID is one of the first uses of the Timepix detector technology in open space, with the data providing useful insight into the performance of this technology in new environments. It provides high-sensitivity imaging measurements of the mixed radiation field, with a wide dynamic range in terms of spectral response, particle type and direction. The data has been analysed using computing resources provided by GridPP, with a new machine learning algorithm that uses the Tensorflow framework. This algorithm provides a new approach to processing Medipix data, using a training set of human labelled tracks, providing greater particle classification accuracy than other algorithms. For managing the LUCID data, we have developed an online platform called Timepix Analysis Platform at School (TAPAS). This provides a swift and simple way for users to analyse data that they collect using Timepix detectors from both LUCID and other experiments. We also present some possible future uses of the LUCID data and Medipix detectors in space.

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Section: Introductionmentioning

confidence: 99%

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

Furnell

Shenoy

Fox

et al. 2019

Advances in Space Research

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“…Six miniature radiation monitors are operating aboard the International Space Station since 2012 in collaboration with the University of Houston and NASA (Kroupa et al ; Stoffle et al ; Turecek et al ; Vykydal & Jakubek ). One Timepix detector is the core of the SATRAM module, developed in collaboration with CSRC Brno, onboard the ESA Proba‐V satellite since 2013 (Gohl et al ; Granja et al ). Another Timepix detector is a part of the miniaturized X‐ray telescope onboard the Czech cubesat VZLUSAT‐1 since 2017 (Baca et al ; Baca et al ; Urban et al ).…”

Section: Timepixmentioning

confidence: 99%

RISEPix—A Timepix‐based radiation monitor telescope onboard the RISESAT satellite

et al. 2019

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Rapid International Scientific Experiment Satellite (RISESAT) is a small Japanese experimental Earth-observing, science and technology demonstration satellite. One of the scientific instruments onboard is a miniature radiation monitor telescope RISEPix with two Timepix detectors, developed and built at the Institute of Experimental and Applied Physics, Czech Technical University in Prague. After its successful launch in January 2019, RISESAT joined two other still operational satellites with our Timepix-based radiation monitors, SATRAM onboard the ESA satellite Proba-V (launched in 2013) and the Czech VZLUSAT-1 cubesat (launched 2017). In this work, we present general technical and scientific details about the RIS-ESAT satellite mission and the RISEPix module, and a basic comparison of space weather monitoring from SATRAM and VZLUSAT-1 radiation monitors. K E Y W O R D elementary particles -instrumentation: detectors -ISM: cosmic rays -space vehicles: instruments 1

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“…They can be used in places where the available space is limited, and in situations where weight or power consumption matters. Such applications include space weather analyses [7], the determination of trapped particle directions in the Van-Allen radiation belts [8,9], monitoring of secondary radiation in hadron therapy [10], the study of the antiproton annihilation [4] and electron microscopy [11]. Especially, when equipped with CdTe or CdZnTe as sensor material Timepix detectors can be investigated for double beta decay experiments [12].…”

Section: Introductionmentioning

confidence: 99%

3D reconstruction of particle tracks in a 2 mm thick CdTe hybrid pixel detector

et al. 2019

Self Cite

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We demonstrate how the latest generation of hybrid pixel detectors of the Timepix family can be used to reconstruct 3 dimensional particle tracks on a microscopic scale, additionally determining the stopping power along the particles' paths. In an experiment, a Timepix3 detector with a 2 mm thick planar CdTe sensor was irradiated in a 40 GeV/c pion beam and used in a similar way to a time-projection chamber: The coordinates x and y were given by the trajectory projection (pixel pitch: 55 µm), the z-coordinate was reconstructed from the charge carrier drift time measurement (time binning: 1.5625 ns). The achievable z-resolution was studied at different bias voltages. Systematic inaccuracies due to an imprecise drift time model were determined and separated from the intrinsic uncertainty given by the time resolution. It was shown that a z-resolution of 60 µm could be achieved by a perfect modeling of the drift time. With the presented z-reconstruction methodology, we studied the charge collection efficiency as a function of interaction depth, which was then used to apply a charge loss correction to the per-pixel energy measurements. 3D event displays of pion, muon and electron tracks are shown.

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The SATRAM Timepix spacecraft payload in open space on board the Proba-V satellite for wide range radiation monitoring in LEO orbit

Cited by 69 publications

References 63 publications

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

RISEPix—A Timepix‐based radiation monitor telescope onboard the RISESAT satellite

3D reconstruction of particle tracks in a 2 mm thick CdTe hybrid pixel detector

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