RAZREZ system for RADIOSCAF experimentAbsorbed dose 0.09 nGr … 1.5 mkGr Surface temperature-120ºC...
Transcript of RAZREZ system for RADIOSCAF experimentAbsorbed dose 0.09 nGr … 1.5 mkGr Surface temperature-120ºC...
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Petrov V.L., Panasyuk M.I., Amelyushkin A.M., Drozdov A.Yu.,
Nechaev O.Yu.
Skobeltsyn Institute of Nuclear Physics, Lomonosov MSU
RAZREZ system RAZREZ system for RADIOSCAF experimentfor RADIOSCAF experiment
WRMISS 14Dublin, 2009
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The start point:Spacesuit as spacecraft
The start pointThe start point::Spacesuit Spacesuit as as spacecraftspacecraft
Altitude: 350…380 kmdown to atmosphere
Lifetime: up to 6 month
Power: up to 20 W(chemical +solar batteries)
Payload: 17 kg(protons, electrons,neutrons,γ-rays,dosimetry,temperature)
Telemetry: 145 MHz,up to 4 Mb per day
Total mass: 150 kg
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Progress cargo Progress cargo spaceship:spaceship:
3 launches3 launches;;
up to up to 100 W 100 W power supply;power supply;
up to up to 100 Mbod100 Mbod telemetry;telemetry;
up to up to 3 months3 months lifetime;lifetime;
active active altitude altitude stabilization;stabilization;
oneone--axisaxis orientation;orientation;
telescopictelescopic platform;platform;
great great total masstotal mass increase;increase;
great great payloadpayload increaseincrease
Now we have:Now we haveNow we have::
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Main scientific goals:Main scientific goals:
Measurement of altitudinal distribution of Measurement of altitudinal distribution of fluxes of thermal and smallfluxes of thermal and small--energy energy neutronsneutronsaway from ISSaway from ISS
Measurement of Measurement of absorbed dosesabsorbed doses in smallin small--shielded vehicleshielded vehicle
Measurement of Measurement of electronelectron spectrum at spectrum at altitudes < altitudes < 350 350 km at L < 2km at L < 2
(Panasyuk et al., 2000)
Electron fluxes at 600 kmElectron fluxes at 600 km
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RR--BB –– base blockbase block((controllers, protons,controllers, protons,neutrons, electrons,neutrons, electrons,gammagamma))
RR--NN –– neutron blockneutron blockRR--DB1 DB1 –– DOSTEL dosimeterDOSTEL dosimeterRR--D1D1……D4D4 –– LIULIN dosimetersLIULIN dosimetersRR--DB2DB2 –– electron blockelectron block
((electrons,electrons,temperature sensor,temperature sensor,photo detectorphoto detector))
TemperatureTemperature sensorssensors
Scientific equipmentScientific equipment::
RAZREZ payloadRAZREZ payload
Engineering kitEngineering kit
RR--BB
RR--NNRR--DB1DB1 RR--DB2DB2
RR--D4D4
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RAZREZ payloadRAZREZ payload
NeutronsNeutrons0.1 eV ... 1.9 MeV,0.1 eV ... 1.9 MeV,> 2> 2--3 MeV, 3 MeV, > 10> 10--20 MeV20 MeV
ProtonsProtons > 50 MeV> 50 MeV
ElectronsElectrons 200 keV 200 keV …… 3 MeV, spectrum3 MeV, spectrum
GammaGamma >100 keV, >300 keV, >100 keV, >300 keV, >500 keV, >1 MeV, >2 MeV>500 keV, >1 MeV, >2 MeV
LETLET 0.1 0.1 …… 200 keV/mkm200 keV/mkm
NucleusNucleus Z: 1 Z: 1 …… 2626DosimetryDosimetryAbsorbed doseAbsorbed dose 0.09 nGr 0.09 nGr …… 1.5 mkGr1.5 mkGr
SurfaceSurfacetemperaturetemperature --120120ººC C …… +150+150ººCC
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RAZREZ equipment RAZREZ equipment
Telescopic Telescopic platformplatform
RAZREZ payloadRAZREZ payload
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Schedule:Schedule:Schedule:
11stst launch:launch: 20102010Neutron measurement, dosimetry,Neutron measurement, dosimetry,rough electron spectrumrough electron spectrum
22ndnd launch:launch: appr. end of 2011appr. end of 2011
Fine charged particles measurementsFine charged particles measurements
33rdrd launch:launch: 2012 2012 …… 20132013
Waves + fields + charged particles Waves + fields + charged particles
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AcknowledgmentsAcknowledgmentsAcknowledgments
Special thanks to our colleagues fromSpecial thanks to our colleagues from
•• SINP MSU, RussiaSINP MSU, Russia•• …… , Bulgaria, Bulgaria•• University of Kiel, GermanyUniversity of Kiel, Germany
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Thank You!Thank You!Thank You!