title: A semiconductor radiation imaging pixel detector for space radiation dosimetry.
abstract: Progress in the development of high-performance semiconductor radiation imaging pixel detectors based on technologies developed for use in high-energy physics applications has enabled the development of a completely new generation of compact low-power active dosimeters and area monitors for use in space radiation environments. Such detectors can provide real-time information concerning radiation exposure, along with detailed analysis of the individual particles incident on the active medium. Recent results from the deployment of detectors based on the Timepix from the CERN-based Medipix2 Collaboration on the International Space Station (ISS) are reviewed, along with a glimpse of developments to come. Preliminary results from Orion MPCV Exploration Flight Test 1 are also presented.
authors.affiliation: Lockheed Martin, Houston, TX, USA. Electronic address: martin.kroupa@nasa.gov.
authors.forename: Martin
authors.initials: M
authors.lastname: Kroupa
authors.affiliation: Space Radiation Analysis Group, National Aeronautics and Space Administration, Johnson Space Center, Houston, TX, USA.
authors.forename: Amir
authors.initials: A
authors.lastname: Bahadori
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Campbell-Ricketts
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: Anton
authors.initials: A
authors.lastname: Empl
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: Son Minh
authors.initials: SM
authors.lastname: Hoang
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: John
authors.initials: J
authors.lastname: Idarraga-Munoz
authors.affiliation: Lockheed Martin, Houston, TX, USA.
authors.forename: Ryan
authors.initials: R
authors.lastname: Rios
authors.affiliation: Space Radiation Analysis Group, National Aeronautics and Space Administration, Johnson Space Center, Houston, TX, USA.
authors.forename: Edward
authors.initials: E
authors.lastname: Semones
authors.affiliation: Lockheed Martin, Houston, TX, USA.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Stoffle
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: Lukas
authors.initials: L
authors.lastname: Tlustos
authors.affiliation: University of Houston, Houston, TX, USA; Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Czech Republic.
authors.forename: Daniel
authors.initials: D
authors.lastname: Turecek
authors.affiliation: University of Houston, Houston, TX, USA.
authors.forename: Lawrence
authors.initials: L
authors.lastname: Pinsky
mesh_terms: D003359:Cosmic Radiation; D004867:Equipment Design; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D013026:Space Flight; D018531:Spacecraft; D013819:Thermoluminescent Dosimetry / Q000379:methods*
keywords: Dosimetry; Medipix; Pixel detectors; SSDs; Silicon detectors; Space radiation dosimetry; Space radiation imaging detectors; Timepix