M. Albi

Publications (3)0 Total impact

• Article: The Pamela experiment ready for flight

  O. Adriani, M. Albi, F. Altamura, M. Ambriola, A. Bakaldin, G. C. Barbarino, A. Basili, G. Bazilevskaja, R. Bellotti, R. Bencardino, [......], R. Y. Stozhkov, E. Streitmatter, E. Taddei, A. Vacchi, E. Vannuccini, G. Vasiljev, S. A. Voronov, Y. Yurkin, G. Zampa, N. Zampa
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  ABSTRACT: The Pamela apparatus will allow precise measurements of cosmic rays in Low Earth Orbit, mainly focusing on the antiparticles component. The apparatus is now ready for flight, and the launch is foreseen during June 2006. The paper briefly reports the status of the experiment, and the performances of the various components as measured before the launch. (c) 2006 Elsevier B.V. All rights reserved.
  Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment. 01/2007; 572(1):471-473.
• Article: The PAMELA electromagnetic calorimeter: performances

  E. Mocchiutti, M. Albi, M. Boezio, V. Bonvicini, J. Lundquist, A. Vacchi, G. Zampa, N. Zampa, J. Lund, M. Pearce
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  ABSTRACT: A sampling silicon‐tungsten imaging calorimeter has been designed and built for the PAMELA satellite‐borne experiment. The calorimeter has been designed to identify antiprotons from an electron background and positrons in a background of protons with a high efficiency and rejection power. In this work we present the identification capabilities of the calorimeter obtained using both Monte Carlo and test beam data. We show that the calorimeter provides a proton rejection factor of at least 105 while keeping a high efficiency in selecting electrons and positrons. Hence, the calorimeter will fulfill the identification power needed to reach the primary scientific objectives of PAMELA, that are the measurement of the flux of antiprotons, positrons and light isotopes in the cosmic radiation. © 2006 American Institute of Physics
  AIP Conference Proceedings. 10/2006; 867(1):159-166.
• Source

  Available from: A. Vacchi

  Article: The electron–hadron separation performance of the PAMELA electromagnetic calorimeter

  M. Boezio, M. Pearce, M. Albi, V. Bonvicini, J. Lund, J. Lundquist, E. Mocchiutti, A. Vacchi, G. Zampa, N. Zampa
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  ABSTRACT: A silicon-tungsten sampling imaging calorimeter has been designed and built for the PAMELA satellite-borne experiment. The main physics goals of the experiment are the measurement of the flux of antiprotons (80 MeV–190 GeV) and positrons (50 MeV–270 GeV) in the cosmic radiation. The calorimeter has been designed to identify antiprotons from an electron background and positrons in a background of protons with a high efficiency and rejection power. This work presents the electron–hadron separation capabilities of the calorimeter as obtained using both Monte Carlo and test beam data. The calorimeter is found to have sufficient performance to reach the primary scientific objectives of PAMELA, providing a proton rejection factor of ∼105 while keeping a ∼90% efficiency in selecting electrons and positrons. From simulations, an electron rejection factor of ∼105 in antiproton measurements (∼90% antiproton identification efficiency) is demonstrated.
  Astroparticle Physics.