PAMELA is a satellite-borne experiment designed for precision studies of the charged cosmic radiation. The primary scientific goal is the study of the antimatter component of the cosmic radiation (antiprotons, 80 MeV - 190 GeV; and positrons, 50 MeV - 270 GeV) in order to search for evidence of dark matter particle annihilations. PAMELA will also search for primordial antinuclei (in particular, anti-helium), and test cosmic-ray propagation models through precise measurements of the antiparticle energy spectrum and studies of light nuclei and their isotopes. Concomitant goals include a study of solar physics and solar modulation during the 24th solar minimum by investigating low energy particles in the cosmic radiation; and a reconstruction of the cosmic ray electron energy spectrum up to several TeV thereby allowing a possible contribution from local sources to be studied. PAMELA is housed on-board the Russian Resurs-DK1 satellite, which was launched on June 15th 2006 in an elliptical (350-600 km altitude) orbit with an inclination of 70 degrees. PAMELA consists of a permanent magnet spectrometer, to provide rigidity and charge sign information; a Time-of-Flight and trigger system, for velocity and charge determination; a silicon-tungsten calorimeter, for lepton/hadron discrimination; and a neutron detector. An anticoincidence system is used offline to reject false triggers. In this article the PAMELA experiment and its status are reviewed. A preliminary discussion of data recorded in-orbit is also presented.
PAMELA: a payload for antimatter matter exploration and light-nuclei astrophysics - status and first results / M., Pearce; O., Adriani; M., Ambriola; Barbarino, Giancarlo; A., Basili; G. A., Bazilevskaja; R., Bellotti; M., Boezio; E. A., Bogornolov; L., Bonechi; M., Bongi; L., Bongiorno; V., Bonvicini; A., Bruno; F., Cafagna; D., Campana; P., Carlson; M., Casolino; G., Castellini; M. P., De; DE ROSA, Gianfranca; V. D., Felice; D., Fedele; A. M., Galper; P., Hofverberg; S. V., Koldashov; S. Y., Krutkov; A. N., Kvashnin; J., Lundquist; O., Maksumov; V., Malvezzi; L., Marcelli; W., Menn; V. V., Mikhailov; M., Minori; S., Misin; E., Mocchiutti; A., Morselli; N. N., Nikonov; S., Orsi; G., Osteria; P., Papini; P., Picozza; M., Ricci; S. B., Ricciarini; M. F., Runtso; S., Russo; M., Simon; R., Sparvoli; P., Spillantini; Y. I., Stozhkov; E., Taddei; A., Vacchi; E., Vannuccini; G., Vasilyev; S. A., Voronov; Y. T., Yurkin; G., Zampa; N., Zampa; V. G., Zverev. - STAMPA. - (2007), pp. 42-47. (Intervento presentato al convegno IEEE Nuclear Science Symposium/Medical Imaging Conference tenutosi a Honolulu, HI nel 2007) [10.1109/NSSMIC.2007.4436285].
PAMELA: a payload for antimatter matter exploration and light-nuclei astrophysics - status and first results
BARBARINO, GIANCARLO;DE ROSA, GIANFRANCA;
2007
Abstract
PAMELA is a satellite-borne experiment designed for precision studies of the charged cosmic radiation. The primary scientific goal is the study of the antimatter component of the cosmic radiation (antiprotons, 80 MeV - 190 GeV; and positrons, 50 MeV - 270 GeV) in order to search for evidence of dark matter particle annihilations. PAMELA will also search for primordial antinuclei (in particular, anti-helium), and test cosmic-ray propagation models through precise measurements of the antiparticle energy spectrum and studies of light nuclei and their isotopes. Concomitant goals include a study of solar physics and solar modulation during the 24th solar minimum by investigating low energy particles in the cosmic radiation; and a reconstruction of the cosmic ray electron energy spectrum up to several TeV thereby allowing a possible contribution from local sources to be studied. PAMELA is housed on-board the Russian Resurs-DK1 satellite, which was launched on June 15th 2006 in an elliptical (350-600 km altitude) orbit with an inclination of 70 degrees. PAMELA consists of a permanent magnet spectrometer, to provide rigidity and charge sign information; a Time-of-Flight and trigger system, for velocity and charge determination; a silicon-tungsten calorimeter, for lepton/hadron discrimination; and a neutron detector. An anticoincidence system is used offline to reject false triggers. In this article the PAMELA experiment and its status are reviewed. A preliminary discussion of data recorded in-orbit is also presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
