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The Energetic Particle Telescope (EPT)

Configurations for Characterizations of the Space Radiation Environment. The Energetic Particle Telescope (EPT). M. Cyamukungu, Gh. Grégoire, S. Benck, J. Cabrera, L. Soung Yee, P. Leleux and J. Lemaire (CSR) C. Lippens, D. Heynderickx, V. Pierrard and E. Van Ransbeeck (BISA)

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The Energetic Particle Telescope (EPT)

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  1. Configurations for Characterizations of the Space Radiation Environment The Energetic Particle Telescope (EPT) M. Cyamukungu, Gh. Grégoire, S. Benck, J. Cabrera, L. Soung Yee, P. Leleux and J. Lemaire (CSR) C. Lippens, D. Heynderickx, V. Pierrard and E. Van Ransbeeck (BISA) E. Valtonen and J. Peltonen (ASRO) S. Duzellier, R. Ecoffet (ONERA/CNES) SPENVIS - Leuven,

  2. Contents: • Basic principle of the EPT • Particle channels & Detection efficiencies • The EPT configurations • The EPT Development status • The EPT and SPENVIS • Flight opportunity • The EPT development team • Conclusions SPENVIS - Leuven,

  3. 1. Basic principles of the EPT SPENVIS - Leuven,

  4. 2. Detection efficiency (ctd) e1 e4 Electrons e24 SPENVIS - Leuven,

  5. 2. Detection efficiency (ctd) e25 e29 e33 e48 e48 Protons SPENVIS - Leuven,

  6. 2. Detection efficiency (ctd) e49 e49 e53 e57 e72 a- particles e72 SPENVIS - Leuven,

  7. 3. The EPT configurations 3.1. Low flux particle detector SPENVIS - Leuven,

  8. 3.1.1. Low flux particle detector: large F.O.V. angle for flux… …measurements on board non-spinning satellites SPENVIS - Leuven,

  9. 3.1.2. Low flux particle detector: reduced F.O.V. angle for flux… …measurement on board spinning satellites SPENVIS - Leuven,

  10. 3.2. High flux particle detector 3.2.1. High flux particle detector: variable aperture / F.O.V. angle SPENVIS - Leuven,

  11. 4. The EPT and SPENVIS Users requirements SPENVIS Already fulfilled requirements Not yet fulfilled requirements EPT configurations Data analysis and modelling activities SPENVIS - Leuven,

  12. 5. The EPT development status The (high flux) EPT prototype is being finalized and will be tested in november 2005. This test will be followed by that of silicon sensors ( and half EPT) in january 2006. SPENVIS - Leuven,

  13. 6. Flight opportunity • The EPT schedule is drawn to fit into the development plan of the Environmental Explorer mission (NRL project) • The consortium is also interested in acquiring data on board Alphasat SPENVIS - Leuven,

  14. 7. The EPT development team The EPT development was initiated in 1997 by Prof. Gh. Grégoire and Dr. M. Cyamukungu. The development of the DAM’s was supported by the Nuclear Physics Institute and the hardware for the prototype under construction was funded by the Belgian Institute for Space Aeronomy. The construction of an Engineering Qualification Model is undertaken by an international team including skills from: With collaboration from NRL (USA) and Aerospace Corporation (USA) SPENVIS - Leuven,

  15. Conclusions The Energetic Particle Telescope (EPT) can be configured to measure particle fluxes in several radiation environment conditions. Its main features are: • outstanding particle discrimination capability • high data acquisition rates due to digital operation mode • almost no background counting • extended energy range covered by a single instrument • digital reliability and built-in redundancy SPENVIS - Leuven,

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