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ISS-present status

ISS-present status. Trent Martin NASA AMS Project Manager. AMS-02 layout: energy and type separation of particles. Electron, positron, proton, antiproton, isotopes…. 3. Milano 20 maggio 2002. 1 year. High statistics study of the cosmic ray spectrum Isotope separation

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ISS-present status

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  1. ISS-present status Trent Martin NASA AMS Project Manager

  2. AMS-02 layout: energy and type separation of particles Electron, positron, proton, antiproton, isotopes…. 3 Milano 20 maggio 2002

  3. 1 year • High statistics study of • the cosmic ray spectrum • Isotope separation • Antiparticle spectrum Antimatter search on anti-He with a sensitivity 103 better than current limits 10Be is specially interesting for its half time (t1/2 = 1.51 106 years) of the same order than the confinement time of the CR in the Galaxy • After 3 years, AMS will collect ~10510Be

  4. Dark Matter Search • INDIRECT DETECTION: in CRs • signals due to χχ annihilation in the galactic halo • .→ neutrinos • .→ gamma-rays • .→ antiprotons, positrons, antideuterons • ASTROPHYSICS OF COSMIC RAYS!! CR Transport equation in Diffusion Models: in 2D with turbolence convection, energy changing and sources in the halo

  5. AMS-02 data • Secondary antiprotons: background when looking for exotic component • To calculate secondary • antiproton fluxes: • .→ p and He in CR (measured flux) • .→ nuclear cross sections (data + Mcarlo) • .→ diffusion models

  6. From interstellar to Earth CR flux-1 Fokker-Plank equation of propagation in 2 or 3D Heliosphere (Solar) MODULATION Solar activity and polarity + DRIFT! Diffusion (r) Diffusion () Adiabatic loss Convection

  7. From interstellar to Earth CR flux-2 Recontsruct CR trajectories: TF calculation Magnetosphere MODULATION TF calculation AMS-02 predictions

  8. Tesi di laurea breve disponibili • Eliosfera • Modulazione solare da 1D a 2D • Moti di deriva nell’eliosfera • CR modulation per i pianeti del sistema solare (Marte etc.) • Modulazione nelle fasi A>0 e A<0 • Magnetosfera • TF per elio e confronto dati AMS01 • TF per elettroni e confronto dati AMS01 • TF 2009 e previsioni Elio AMS-02 • TF per ioni (C-Fe) e previsioni AMS02 • On-line running code

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