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An anomalous positron abundance in cosmic rays with
energies 1.5–100 GeV
PAMELA
First Result from the Alpha Magnetic Spectrometer on the
International Space Station: Precision Measurement of the
Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV
AMS
The Fermi LAT cosmic-ray electron-positron
spectrum
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Disegno concettuale dell’esperimentoElevata reiezione p/e
+ misura nuclei
-Ridondanza TRD + CALO ad alta energia (+ND)-Marcatura antiprotone, antinuclei
(S4)
anti
neutron detector(ND)
& ND
b+trigger
b+trigger
b+trigger
g+particle id.
E+particle id.
pmeasurement
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PAMELA – Integrazione
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Pamela Container + Pamela Mass-Thermal-Model
at TsSKB Samara / Russia
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AGILE payload
IASF Milano
IASF Bologna
IASF Roma
INFN Roma2 -IASF Milano
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TKRCALACD
CAL
TKR
TKR
CAL
Lo Strumento principale di GLAST : il Large Area Telescope
GLAST e’ caratterizzato da un utilizzo su vasta scala di moderne tecnologie di rivelazione provate con successo nel campo della fisica delle particelle : rivelatori al silicio e calorimetro elettromagnetico con cristalli di CsI
TKR (auto-triggerante)• 16 “torri” • 83m2 di Si complessivi• 11500 SSD, ~ 1M canali
CAL (imaging)• 96 cristalli di CsI per torre• 8 strati of 12 cristalli ciascuno• ciascun strato ruotato di 90º
Calorimeter
DAQ Electronics
Tracker
ACDThermal blanket
Grid
Calorimeter (energy measurement)
Particle tracking detectors
Conversion foils
Charged particle anticoincidence shield
e+
e-
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Ricerca di antimateria
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