A semiconductor radiation imaging pixel detector for space radiation dosimetry

Kroupa, Martin; Bahadori, Amir A.; Campbell-Ricketts, Thomas; Empl, A.; Hoang, Son Minh; Idarraga-Munoz, J.; Rios, R. R.; Semones, E.; Stoffle, Nicholas; Tlustos, L.; Tureček, D.; Pinsky, L.

doi:10.1016/j.lssr.2015.06.006

Cited by 60 publications

(44 citation statements)

References 38 publications

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“…differences between Timepix perpendicular to each other). In addition, there is still much to exploit from the ability of Medipix detectors to measure both the elevation and azimuthal angle of particle trajectories in space e.g George (2014), Kroupa et al (2015) find that particles are highly directional in the SAA (c.f. Granja et al, 2014b) See also rocket experiments at lower altitudes e.g.…”

Section: Future Plansmentioning

confidence: 99%

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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: Future Plansmentioning

confidence: 99%

“…Using Medipix in space was first discussed in Pinsky et al (2011). Seven NASA/IEAPdeveloped Radiation Environment Monitors (REMs), Timepix detectors in compact USB mounting, have been deployed to the ISS (altitude ∼400km), see Turecek et al (2011b), Kroupa et al (2015) and Stoffle et al (2015).…”

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 NASA Advanced Exploration Systems Program is developing, under the direction of the NASA Space Radiation Analysis Group, the Hybrid Electronic Radiation Assessor (HERA). HERA is a distributed dosimeter system based on the coupling of a solid‐state silicon detector with the Timepix chip (Kroupa et al, ). EM‐2 is the first scheduled crewed mission of NASA's Orion MPCV spacecraft.…”

Section: Resultsmentioning

confidence: 99%

Active Dosimeter‐Based Estimate of Astronaut Acute Radiation Risk for Real‐Time Solar Energetic Particle Events

Mertens

Slaba

2018

Space Weather

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Radiation exposure from solar energetic particle (SEP) events becomes a much greater concern as human exploration extends beyond low Earth orbit and the protective environment of Earth's magnetic field. Free‐space SEP events have an increased impact on mission planning and operations, as countermeasures may be necessary to avoid exceeding astronaut permissible exposure limits. Operational analysis tools are needed to assess acute radiation risk during SEP events in order to determine courses of action during the mission. A methodology has been developed to meet this need, which utilizes onboard vehicle dosimeter measurements to estimate organ dosimetric quantities at astronaut crew locations in real time. The estimated organ doses provide the necessary inputs to acute biological response models that predict radiation‐induced performance decrement and other acute radiation effects. The real‐time SEP organ dose estimation methodology has been combined with an acute biological response model, providing an active dosimeter‐based acute radiation risk model for operational mission planning, and determining radiation exposure mitigation measures for deep‐space exploration missions. This new tool has been developed specifically for National Aeronautics and Space Administration's Orion Multi‐Purpose Crew Vehicle storm shelter environment but could easily be extended to other vehicles. The methodology for estimating SEP organ doses is evaluated and assessed in this paper, and a simulation of the acute radiation responses in the Multi‐Purpose Crew Vehicle storm shelter is shown for the historical October 1989 SEP event. The operational acute radiation risk model will be utilized on National Aeronautics and Space Administration's Exploration Mission 1 and Exploration Mission 2.

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“…The overview with details of all these devices is summarized in Filgas (). 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 ).…”

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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A semiconductor radiation imaging pixel detector for space radiation dosimetry

Cited by 60 publications

References 38 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

Active Dosimeter‐Based Estimate of Astronaut Acute Radiation Risk for Real‐Time Solar Energetic Particle Events

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

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