Dr
John Mitchell
(NASA Goddard Space Flight Center)
29/06/2010, 08:50
Balloon and satellite experiments
Invited
Using high-performance superconducting or permanent magnets coupled with precision detector systems, magnetic-rigidity spectrometers have the unique ability to completely identify incident particles by charge, charge-sign, mass, and energy. Magnetic spectrometers are central to measurements of cosmic antiparticles and the spectra of light isotopes and elements. Positron and antiproton spectra...
Prof.
Eun-Suk Seo
(University of Maryland)
29/06/2010, 09:40
Balloon and satellite experiments
Invited
Direct measurements of cosmic rays with satellite or balloon-borne detectors are used for understanding cosmic ray origin, acceleration and propagation, exploring the supernova acceleration limit, and searching for exotic sources such as dark matter. Their energy reach is currently limited to ~10^15 eV by the detector size and exposure time, but incident particles are identified...
Prof.
Andrei Kounine
(MIT), Prof.
Samuel C.C. Ting
(MIT)
29/06/2010, 11:00
Balloon and satellite experiments
Invited
The Alpha Magnetic Spectrometer (AMS) is a major particle physics experiment on the International Space Station (ISS). AMS is a general purpose particle physics spectrometer using the technologies commonly employed at CERN and Fermilab and upgraded for space applications. The properties of the AMS detector are that it will provide a coordinate resolution of 10 microns, a timing resolution of...
Dr
Satoru Takahashi
(Nagoya University)
29/06/2010, 11:20
Balloon and satellite experiments
Contributed
We are planning to observe cosmic gamma-ray in the energy range 10MeV to 100GeV by balloon-borne gamma-ray telescope with nuclear emulsion. Nuclear emulsion is a precise tracker. By detecting starting point of electron pair, gamma-ray direction can be determined precisely (1.4mrad@1-2GeV). This is much better than Fermi Gamma-ray Space Telescope launched June 2008. Now we are developing the...
Dr
James H. Adams, Jr.
(NASA/MSFC)
29/06/2010, 11:35
Balloon and satellite experiments
Contributed
The JEM-EUSO mission explores the origin of the extreme energy comic-rays (EECRs) above 10^20 eV and challenges to the limit of the basic physics, through the observations, of their arrival directions and energies. It is designed to observe more than 1,000 events of EECRs above 7x10^19 eV in its five-year operation with an exposure larger than 1 million km^2 /sr/year. The super-wide-field (60...
Prof.
Yuqian Ma
(IHEP)
29/06/2010, 11:50
Balloon and satellite experiments
Contributed
Based on the cosmic rays acceleration in the young supernova remnant like environment, electron and positron pair production through the interactions between high energy cosmic rays and radiation background photons is studied. It is found that both the electron/positron excesses and the knee structure of the cosmic ray spectra can be explained with one set of the source parameters.
Mr
Dimitra Atri
(University of Kansas)
29/06/2010, 12:05
Balloon and satellite experiments
Contributed
It has been suggested that events such as supernovae, gamma ray bursts (GRBs) and motion of the Sun perpendicular to the galactic plane may expose the Earth to an enhanced flux of high energy Cosmic Rays (HECRs). The electromagnetic component of the resulting air showers leads to an increase in ionization and dissociation in the atmosphere which results in a series of chemical reactions....