IEAP–CTU Prague
Carlos Granja, Štepan Polansky*, Daniel Tureček*, Stanislav Pospíšil,
Zdeněk Vykydal*, Václav Kraus*, Jan Jakůbek
Institute of Experimental and Applied Physics, Czech Technical University in Prague, Czech Republic
Karim Mellab, Alan Owens, Petteri Nieminen
European Space Agency (ESA), ESTEC, Netherlands
M. Šimčák, Z. Dvořák, Z. Kozaček
$, P. Vána
$, J. Máreš
$Czech Space Research Center, Brno, Czech Republic
*PhD student
$
former staff
Timepix in open space
Detection and track visualization of space radiation at
LEO orbit onboard ESA Proba-V satellite
Research performed in frame of the CERN Medipix Collaboration
Project funded by the European Space Agency
Medipix Collaboration Meeting – CERN, 19-20.2.2014
Science/physics research
Space radiation physics + space weather
Space crew dosimetry + shielding
Radiation effects (SEE, SEU) on spacecraft,
payloads and EECs
Space technology
Spacecraft platform device
Ins ti tute of Expe ri m enta l a nd Appli ed Phys ic s Cze ch T ec hn ic al U ni ve rs ity in Pr ague
X LASNPA Uruguay, 1-6 Dec. 2013, Universidad de la República, Montevideo Carlos Granja, IEAP–CTU Prague 2
Other projects, teams/co-authors
Michal Platkevic*, Iván Caicedo*
&, Benedikt Bergmann*
#%Institute of Experimental and Applied Physics, Czech Technical University in Prague, Czech Republic
Petteri Nieminen
European Space Agency (ESA), ESTEC, Netherlands
Lawrence Pinsky, et al.
U
niversity of Houston/NASA, USA
Toshinori Kuwahara
Tohoku University, Sendai, Japan
Jaroslav Urbar*
Charles Univ. Prague/Czech Space Office, Czech Republic
#MC simulations
* PhD student
%U of Erlangen, Germany
&U de los Andes, Bogota, Colombia
www.cern.ch/medipix
5x TPX devices onboard ISS since 2012, Houston/NASA (launched/in orbit 3Q 2012)
Timepix tracker/particle telescope for micro-satellite RISESAT, Japan (2015)
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 3
Timepix in open space
Characterization and particle visualization of mixed radiation fields in space
Quantum counting/pos-sen/directional detector + integrated RO electronics + data
processing SW + nuclear physics/radiation spectrometry/imaging/tracking
p,
α
, ions, e
–, muons, neutrons, X-rays: dE + particle species resolving power
Detection, radiation monitoring, quantum imaging dosimetry + wide DR
Tracking , visualization, directional information (particle telescope)
Spectrometry (dE), coincidence spectroscopy, reaction/fragmentation, …
Single-quantum sensitivity, noiseless detection, high signal-to-noise ratio
Wide dynamic range (particle flux, particle energies, particle species)
Linear-energy transfer (LET) measurement, low level threshold ≈ 4 keV
High spatial resolution (sub-pixel resolution ≈ µm)
Directional angular resolution: ≈ 1
º (single sensor),
≈ 0.1
º (stack
telescope)
Wide field-of-view: 2
π,
even 4
π
(no collimators, full sky mapping)
Single device, integrated electronics, no cryogenics, no shielding
Light weight: e.g. (only) launch cost ≈ 100 EUR per g
Miniaturized size, low power
ta
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instrumentation
technical
!
Ins ti tute of Expe ri m enta l a nd Appli ed Phys ic s Cze ch T ec hn ic al U ni ve rs ity in Pr ague
CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 4
Space Radiation Environment
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 5
Solar Particle Events
Coronal mass ejections – CMEs
L. Pinsky, U. of Houston
CMEs are directional..!
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 6
L. Pinsky, U. of Houston
South Atlantic Anomaly
Inner Belt
-
mainly protons; energies up to ~500 MeV
-
400 MeV peak ~1.3 R
E-
4 MeV ~2.0 R
EOuter Belt
-
mainly electrons; energies > several MeV
-
Large variations (2-4 orders of magnitude)
over periods of hours to days
Rapid transits through belts limit doses to crews
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X LASNPA Uruguay, 1-6 Dec. 2013, Universidad de la República, Montevideo Carlos Granja, IEAP–CTU Prague 7
Rapid onset times (minutes),
with durations up to hours or
days
Essentially unpredictable,
however generally coincide with
solar maximum periods
Proton energies up to ~100s of
MeV, sometimes GeV range
Integral fluence up to ~10
9
–
10
10
p/cm
2
(>1 MeV)
Contribution from heavy ions and
e-
In the main phase of an event,
local particle fluxes isotropic
Integral fluence of protons [events/cm
2]
Space Radiation Environment
Ins ti tute of Expe ri m enta l a nd Appli ed Phys ic s Cze ch T ec hn ic al U ni ve rs ity in Pr ague
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Ins ti tute of Expe ri m enta l a nd Appli ed Phys ic s Cze ch T ec hn ic al U ni ve rs ity in Pr ague
CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 10
Timepix-based
space payloads/instruments
International Space Station
ESA Proba V satellite
RISESAT satellite
Type
Size (mass)
Minisatellite
100 – 200 Kg
Microsatellite
10 – 100 Kg
Nanosatellite
1 – 10 Kg
Picosatellite
< 1 Kg
50 Kg 150 KgIn orbit since 3Q 2012
Launched 7
thMay 2013
open space
Launch 2014/5
820 km
400 km
platform device
Scientific payload
5 x Timepix devices
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CSO / FEL ČVUT, Praha, 4th March 2014
1
Carlos Granja, ÚTEF ČVUT v Praze 111
Timepix detector in the highly miniaturized LITE architecture (a) customized for the ISS (b) as deployed with an on-board laptop via
USB port (c) in a NASA Module at the ISS (d). Work done in cooperation with NASA and the University of Houston.
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 12
Daniel Turecek, 6
thJuly 2011
13
thIWORID Zürich IEAP, CTU in Prague
1,4 cm
HW
+
methodology
Physics
+
SW
Online miniaturized Timepix Quantum Dosimeter
for the International Space Station (ISS)
5 detector units launched in
space on August 2012, all
running since, taking data
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Timepix onboard the ISS
Detection, meaurement of charged particle flux, visualization
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 14
Timepix onboard the ISS
Radiation over the South
Atlantic Anomaly (SAA)
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REM Dose Rate Data (
m
G/min) measured by Timepix onboard the ISS
Timepix onboard the ISS
Quantum dosimetry + wide dynamic range
µ
Gy
/m
in
5.5 mGy/day
5.5 Gy/y
3 mGy/day
1.1 Gy/y
0.3 mGy/day
0.1 Gy/y
6 uGy/min
47 uSv/min
Airline altirude 11 km (Madrid-Bogota): 0,025 µGy/min = 0.036 mGy/d = 0.013 Gy/y
Ground level (Prague): 0,001 µGy/min = 0.0015 mGy/d = 0.0005 Gy/y
Spatial-correlated radiation dose
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 16
Timepix onboard the ISS
Spatial-correlated flux of charged particles
North Atlantic/Northern Hemisphere South America/ South Atlantic Anomaly/Southern Hemisphere All events All events HCP/LCP LCP/HCP South America/ South Atlantic Anomaly/Southern Hemisphere Energetic events
Earth map spatial
distributions measured by
Timepix onboard ISS
displaying the flux of all
radiation components
integrated
Radiation flux measured by Timepix onboard ISS at 400 km altitude, 12 month dataIns ti tute of Expe ri m enta l a nd Appli ed Phys ic s Cze ch T ec hn ic al U ni ve rs ity in Pr ague
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HW: front-end + readout electronics
Low power, heating dissipation, high vacuum
Light weight, shielding, payload accommodation
DAQ & memory/downlink capacity
Space-qualified components/parts/FPGA’s etc
SW: firmware + control + readout
Remote/on-board control, autonomous operation
On-board memory buffer (limited capacity)
Data downlink (limited capacity)
Telecommanding + file compression + data
parsing
Qualification/space flight testing
Thermal, heating dissipation, high vacuum
Vibrational + G-force acceleration
EM interference
Integration into satellite system
Timepix in open space
Spacecraft payload HW/SW Redesign + space qualification testing
Breadboard
model
Engineering
model (EM)
Flight model
(FM)
Reengineering
Downgrade
Spacecraft payload
Spacecraft payload + constraints/limitations/requirements
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 18
Timepix SATRAM Payload
ESA Proba-V satellite
SATRAM payload:
Space Application of Timepix Radiation Monitor
Characterization of
space radiation at
the Low Earth Orbit
(LEO) on ESA
PROBA-V satellite
Altitude ~ 820 km
Timepix for the first
time in
open space
–
currently TRL 9
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SATRAM
payload (arrow)
onboard ESA
Proba-V
satellite
attached to ESA
Vega-2 launcher
rocket prior
launch
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SATRAM payload
(arrow) onboard ESA
Proba-V satellite.
ESA Vega-2 launcher
rocket upper stage
ESA
Vega-2 rocket
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Timepix/ESA Proba-V:
LEO space radiation @ 820 km
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Timepix/ESA Proba-V:
LEO space radiation @ 820 km
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 23
Timepix/ESA Proba-V:
LEO space radiation @ 820 km
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7th Feb 2014
8-9h Jan 2014 – SPE
SATRAM – Proba-V
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Timepix/ESA Proba-V + LEO space radiation @ 820 km
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Radiation field Earth map spatial
distributions measured by Timepix
based SATRAM payload onboard ESA
Proba-V satellite LEO orbit 820 km
altitude displaying all radiation
components integrated over 5.5 months
South America, Antarctica, South Atlantic Anomaly SAA
The Americas
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 27
Radiation field Earth map spatial
distributions measured by Timepix
onboard ESA Proba-V satellite LEO
orbit 820 km altitude displaying all
radiation components integrated over
5.5 months
South America, Antarctica, South Atlantic Anomaly SAA
Australia/Oceania
Asia/west Pacific
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 28
Visualization of direction of energetic particles with
single layer Timepix in hadron therapy (
12C) field
Enhanced visualization of direction of energetic particles
with stacked Timepix particle telescope
RISESAT + Timepix particle tracker payload
Particle visualization + telescope
EM
1 0 0 m mbreadboard
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CSO / FEL ČVUT, Praha, 4th March 2014 Carlos Granja, ÚTEF ČVUT v Praze 29