Space Environments and Effects Section ESA Radiation Monitors On-going and Planed Activities Hugh Evans, Eamon Daly, Ali Mohammadzadeh, Petteri Nieminen ESA/ESTEC slide 2 ESA header Space Environments and Effects Section ESA Standard Radiation Environment Monitor (SRGM) diagram and image of ESA Standard Environment Monitor (SREM) SREM Geant4 model Image Contraves Space Image PROBA-1 2001 Image Integral 2002 Image Rosetta 2004 Image Giove-B 2006 Image Herschel 2008 Image Planck 2008 Image GAIA 2011 Slide 3 SREM energy binning Logic dE discr. level [MeV] Particle E min [MeV] E max [MeV] 1. D1/TC1 0.085 Proton 20 Inf. Electron 2 Inf. 2. D1 /S12 0.25 Proton 20 550 3. D1/S13 0.6 Proton 20 120 4. D1/S14 2 Proton 20 27 5. D1/S15 30 Proton 20 34 6. D2/TC2 0.085 Proton 39 Inf. 7. D2/S25 9 Ions 150 185 8. D1*D2/C1 0.6, 2 Proton coincidence 40 50 9. D1*D2/C2 0.6, 1.1-2.0 Proton coincidence 50 70 10. D1*D2/C3 0.6, 0.6-1.1 Proton coincidence 70 120 11. D1*D2/C4 0.085-0.6, 0.085-0.6 Proton coincidence 130 Inf. 12. D3/TC3 0.085 Electron Proton 0.5, 10 Inf. 13. D3/S32 0.25 Electron 0.55 2.3 14. D3/S33 0.75 Proton 11 90 15. D3/S34 2 Proton 11 30 Space Environments and Effects Section Slide 4 SREM on PROBA-1 (LEO) image of SREM, PROBA-1 PROBA-images of TC counts from 2001-10 to 2002-04 Slide 5 Geomagnetic Shielding diagram of System: integral Rem Pacc vs System: Proba1 SREM PACC Labels: S33: SE1 >4:1 24 M 12 MeV e- > 2 MeV Slide 7 Radiation Belt Month After Storm 2 graphs of System: Proba1 SREM PACC after storm 2003-12 C1: 43 MeV < p+ < 86 MeV S34: p+ > 12 MeV e- > 2 MeV Slide 8 Comparison to AE8 & AP8 TC3: e-> 0.8 MeV; p + >10 MeV graphs of comparison to AE8 * AP8 of preliminary data 27/9/2003 radiaion belt encounter Data from - > 11/11/2004; -Smart-1 radiation belt encounter Slide 9 Comparison to AE8 & AP8 TC1: e-> 2 MeV; p +> 27 MeV Comparison graphs of AE8 to AP8 radiaion belt encounter 27/9/2003->11/11/2004 Data from 27/9/2003-> 11/11/2004; Smart-1 radiation belt encounter Slide 10 Comparison to AE8 & AP8 TC2: e-> 2.8 MeV; p + > 49 MeV Comparison graphs of AE8 to AP8 radiaion belt encounter 27/9/2003->11/11/2004 Data from 27/9/2003-> 11/11/2004; Smart-1 radiation belt encounter Slide 11 L2 Science Missions images of L2 science missions: Planck 2008, SREM JWSTG 20?? Herschel 2008, SREM GAIA 2011, SREM ? © NASA WMAP Slide 12 General Space Environment Monitor (GSEM) --Under Development --Modular concept intended for radiation, charging, plasma, debris, vibration,... --Miniaturised compared to SREM (control unit base configuration ~10 cm3, <= 1 kg, power <= 2W) --HEP sensors: Electrons 130 keV - 7 MeV, protons 3-300 MeV, heavy ions 15-70 MeV.cm2/mg --Potential flight opportunities on AMS-2 (ISS), AlphaSat mission (GEO) Image GSEM basic module Image GSEM HEP sensor Slide 13 Miniature Radiation Monitor (MRM) Space Environments and Effects Section image of MRM graph of MRM > 0.5 MeV proton data -- Prototype flight on PROBA-1 (LEO) -- Based on a cubical scintillating crystal (Csl) -- Detects protons and electrons up to 50 MeV deposited energy; pulse shape discrimination -- Volume 10 x 10 x 3 cm3, mass 327 g -- Two further flight units being manufactured Designed and built by SENSYS (NL) Slide 14 Energetic Particle Telescope (EPT) diagram of Energetic Particle Telescope (EPT) --Belgian activity (CSR) --High-fidelity instrument --12 detector elements in digital operation mode --Electrons 0.2-10 MeV, protons 4-300 MeV, alpha-particles 16-100 MeV + heavier ions --High energy, angular and particle species resolutions --Mass~6 kg --Flight opportunity on the NRL Environment Explorer --Launch ~2008 Slide 15 Other Activities • XMM/RM • Giove-A (Merlin & CEDEX); Galileo • Lisa Pathfinder RM • BepiColombo RM (ESA/SCI) • CNES (SAC/C; SAC/D; Jason 2;) • Investigations of crew dosimetry (Columbus & Aurora programmes) • ISS Science investigations (SILEYE, ALTEA, AMS,...) • Simulation codes (Geant4, Desire, SPENVIS, GRAS, Mulassis…) • Iradiation facilities (IBER)