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Current Active Detectors for Dosimetry and Spectrometry on the International Space Station
Cary Zeitlin, Larry Pinsky
We present a high-level overview of two of the most important radiation detection systems currently flying aboard the International Space Station (ISS), ISS-RAD and Timepix. ISS-RAD is a single, large unit that is capable of detecting both charged and neutral high-energy particles. For most of its first three and a half years of operations onboard Station, ISS-RAD has been periodically moved to different modules, including the USLab, Columbus, JEM, Node2, and Node3. In contrast, the much smaller Timepix-based detectors are deployed in several locations around the station. The first generation of these units were known as REMs, or Radiation Environment Monitors. A second generation has recently been deployed, known as REM-2 units. We will briefly describe the technologies used in these systems and their capabilities.