نتایج جستجو برای: transition radiation detector
تعداد نتایج: 547405 فیلتر نتایج به سال:
CREAM (Cosmic Ray Energetics And Mass) is an experiment being constructed to study high-energy cosmic rays from 10 eV to over 5×10 eV using the new ultra long duration balloon (ULDB) capability under development by NASA. ULDB flights are designed to last from 60 to 100 days each. CREAM includes a sampling tungsten/scintillator calorimeter, a transition radiation detector (TRD), and a timing-bas...
The Compressed Baryonic Matter (CBM) experiment at the future FAIR facility at Darmstadt will measure dileptons emitted from the hot and dense phase in heavy-ion collisions. Very fast event reconstruction is extremely important for CBM because of the huge amount of data which has to be handled. In this contribution the parallel event reconstruction algorithms in the Ring Imaging CHerenkov detec...
Accurate measurements of the composition and energy spectra of cosmic rays beyond the TeV energy region have been an experimental challenge for years. TRACER (“Transition Radiation Array for Cosmic Energetic Radiation”), is currently the largest cosmic-ray detector for direct measurements, and has been developed for long-duration balloon flights. The instrument is unconventional in that it uses...
The AMS spectrometer will be implemented on the International Space Station at the end of 2003 (or beginning of 2004). The instrument will be made of a superconducting magnet which inner volume will be mapped with a tracker consisting of 8 planes of silicon microstrips surrounded by several sub-detectors: a time-of-flight (TOF), a ring imaging Cherenkov (RICH), an electromagnetic calorimeter (E...
The TRACER instrument (“Transition Radiation Array for Cosmic Energetic Radiation”) has been developed for direct measurements of the heavier primary cosmic-ray nuclei at high energies. The instrument had a successful long-duration balloon flight in Antarctica in 2003. The detector system and measurement process are described, details of the data analysis are discussed, and the individual energ...
Background: To determine the basic physical and dosimetric properties of a new synthetic single-crystal diamond detector and its application for relative small field dosimetry. Materials and Methods: The pre-irradiation dose required to stabilize detector response, dose rate dependence, photon and electron energy dependence, temperature dependence and angular dependence of MicroDiamond detector...
AliRoot [1] is the Off-line framework for simulation, reconstruction and analysis for the ALICE experiment at LHC at CERN. Motivated by the developments of the particle identification analysis for the Transition Radiation Detector of ALICE a statistics package was developed for AliRoot for fast access and interpolation of multi dimensional data sets. A special atention in our implementation was...
Single-crystal high-pressure X-ray diffraction studies on the protein crystals of orthorhombic and tetragonal hen egg-white lysozyme polymorphs were carried out using a Merrill-Bassett diamond-anvil cell, image-plate detector and synchrotron radiation. The orthorhombic crystal has been squeezed to 85.5% of its ambient pressure volume at about 1.0 GPa; the crystal compresses anisotropically, and...
We present a new measurement of the cosmic-ray positron fraction e + =(e + + e) obtained from the rst balloon ight of the High Energy Antimatter Telescope (HEAT). Using a magnet spectrometer combined with a transition radiation detector, an electromagnetic calorimeter, and time-of-ight counters we have achieved a high degree of background rejection. Our results do not indicate a major contribut...
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