| 1. |
- Adcox, K, et al.
(author)
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PHENIX detector overview
- 2003
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In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0167-5087. ; 499:2-3, s. 469-479
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Journal article (peer-reviewed)abstract
- The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
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| 2. |
- Adcox, K, et al.
(author)
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PHENIX central arm tracking detectors
- 2003
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In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0167-5087. ; 499:2-3, s. 489-507
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Journal article (peer-reviewed)abstract
- The PHENIX tracking system consists of Drift Chambers (DC), Pad Chambers (PC) and the Time Expansion Chamber (TEC). PC1/DC and PC2/TEC/PC3 form the inner and outer tracking units, respectively. These units link the track segments that transverse the RICH and extend to the EMCal. The DC measures charged particle trajectories in the r-phi direction to determine P-T of the particles and the invariant mass of particle pairs. The PCs perform 3D spatial point measurements for pattern recognition and longitudinal momentum reconstruction and provide spatial resolution of a few mm in both r-phi and z. The TEC tracks particles passing through the region between the RICH and the EMCal. The design and operational parameters of the detectors are presented and running experience during the first year of data taking with PHENIX is discussed. The observed spatial and momentum resolution is given which imposes a limitation on the identification and characterization of charged particles in various momentum ranges. (C) 2002 Published by Elsevier Science B.V.
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| 3. |
- Tarakanov, A. O., et al.
(author)
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Carbon nanotubes towards medicinal biochips
- 2010
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In: Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology. - : Wiley. - 1939-0041 .- 1939-5116. ; 2:1, s. 1-10
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Journal article (peer-reviewed)abstract
- Carbon nanotubes (CNTs) exhibit a unique combination of biological and physical properties.(1-3) These properties make CNT-based devices, especially CNT field-effect transistors (FETs),(3,4) promising as a novel platform for chemical sensors,(5) biosensors,(6-8) and biochips.(9-11) The last ones seem to be especially promising for clinical diagnostics.(12) Namely, biochips permit the analysis of DNA, proteins, and other biological and chemical molecules in a massively parallel format.(13) They represent a multidisciplinary development unifying molecular biology, chemical and electronics engineering.(14) The emerging technologies of CNT biochips in medicine might provide further advantages relative to traditional biochip platforms including the cost and speed of medical tests.(12,15,16) Accordingly, our overview focuses on the recent advances in CNT-based biochips and tries to clarify their medicinal potential including lab-on-chips for molecular diagnostics,(17,18) drug screening,(19) and also novel strategies in molecular medicine.(20-22)
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| 4. |
- Tarakanov, Yu. A., et al.
(author)
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Scattering-assisted terahertz gain in semiconductor superlattices in the Wannier-Stark-Ladder regime
- 2006
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In: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121. ; 74:12
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Journal article (peer-reviewed)abstract
- Using the second-order perturbation theory we have calculated the scattering assisted gain spectra in GaAs/AlGaAs superlattice under a strong applied electric field in the Wannier-Stark-Ladder (WSL) regime. Nonequilibrium distribution function of quasi-two-dimensional carriers localized in each WSL level and indirect optical transitions between neighboring WSL levels accompanied by the emission or absorption of acoustical phonons are taken into account in our theoretical analysis and numerical calculation. We have shown that the experimentally observed down shift of the zero-gain frequency from the Bloch oscillation frequency is due to the inelastic nature of the phonon scattering and the formation of excitons when electron-hole pairs are photoexcited. Our theoretical results agree well with the experimental data which were obtained from analyzing the THz response of superlattices to the picosecond optical pulse excitation.
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