1. The Energetic Particle Telescope (EPT)
Configurations for Characterizations of the Space Radiation Environment
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,
16/11/2018

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
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16/11/2018

3. 1. Basic principles of the EPT
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4. 2. Detection efficiency (ctd)
Electrons e1
e24 e4
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5. 2. Detection efficiency (ctd)
Protons
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6. 2. Detection efficiency (ctd)
a - particles
e72
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7. 3. The EPT configurations
3.1. Low flux particle detector
SPENVIS - Leuven,
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8. 3.1.1. Low flux particle detector: large F.O.V. angle for flux…
…measurements on board non-spinning satellites
SPENVIS - Leuven,
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9. 3.1.2. Low flux particle detector: reduced F.O.V. angle for flux…
…measurement on board spinning satellites
SPENVIS - Leuven,
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10. 3.2. High flux particle detector
High flux particle detector: variable aperture / F.O.V. angle
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16/11/2018

11. Data analysis and modelling activities Users requirements
4. The EPT and SPENVIS
EPT configurations
Already fulfilled requirements
Not yet fulfilled requirements
SPENVIS
Data analysis and modelling activities
Users requirements
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16/11/2018

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,
16/11/2018

13. The consortium is also interested in acquiring data on board Alphasat
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,
16/11/2018

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:
CSR
Belgium
BISA
Aboa Space Research Oy
Finland
ONERA/CNES
France
With collaboration from NRL (USA) and Aerospace Corporation (USA)
SPENVIS - Leuven,
16/11/2018

15. Conclusions outstanding particle discrimination capability
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,
16/11/2018