379 research outputs found
Measurement of the analyzing power of the charge exchange anti-p p --> anti-n n reaction in the momentum range 546-MeV/c - 1287-MeV/c atLEAR
No full textMonte Carlo studies of the COMPASS RICH 1 optical properties
No full textBaum G, Birsa R, Bradamante F, et al. Monte Carlo studies of the COMPASS RICH 1 optical properties. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 433. ELSEVIER SCIENCE BV; 1999: 401-405.A dedicated Monte Carlo has been built to study the optical properties of the RICH 1 detector presently under construction for the COMPASS experiment at CERN. In this paper we focus on the optimization of the position of the photon detector with respect to the RICH mirror and on the alignment of the mirror elements forming the mirror surface. (C) 1999 Elsevier Science B.V. All rights reserved
The COMPASS RICH1 detector
No full textBaum G, Birsa R, Bradamante F, et al. The COMPASS RICH1 detector. In: Nuclear Physics B - Proceedings Supplements. Nucl.Phys.Proc.Suppl. Vol 78. ELSEVIER SCIENCE BV; 1999: 354-359.A large acceptance gas RICH detector is presently under construction for the spectrometer of the COMPASS Experiment. Tts design parameters are presented and the main characteristics of the vessel, the mirrors system, the photon detectors and the front-end electronics are-discussed together with some results from prototyping activities
The COMPASS RICH project
No full textBaum G, Birsa R, Bradamante F, et al. The COMPASS RICH project. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 433. ELSEVIER SCIENCE BV; 1999: 207-211.The set-up of the COMPASS experiment (NA58 at CERN SPS) consists of two spectrometers (a large-angle one followed by a small-angle spectrometer) both equipped with a gas RICH (RICH 1 and RICH 2) for hadron identification. RICH 1 is currently under construction, while RICH 2 will be added at a second stage. RICH 1 design parameters and technological choices are discussed. (C) 1999 Elsevier Science B.V. All rights reserved
RICHONE: a software package for the analysis of COMPASS RICH-1 data
No full textBaum G, Birsa R, Bradamante F, et al. RICHONE: a software package for the analysis of COMPASS RICH-1 data. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 502. Elsevier Science BV; 2003: 315-317.RICHONE is the pattern recognition and PID code for COMPASS RICH-1. RICHONE is part of CORAL, the COMPASS software system, a C++ framework developed within the collaborations using up-to-date techniques and tools. (C) 2003 Elsevier Science B.V. All rights reserved
The mirror system of COMPASS RICH-1
No full textAlbrecht E, Baum G, Birsa R, et al. The mirror system of COMPASS RICH-1. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 502. Elsevier Science BV; 2003: 236-240.The architecture and the properties of the mirror system of the COMPASS RICH-I detector, composed by 116 spherical VUV reflecting units supported by a lightweight mechanical structure, are described. (C) 2003 Elsevier Science B.V. All rights reserved
Status and characterisation of COMPASS RICH-1
No full textAlbrecht E, Baum G, Birsa R, et al. Status and characterisation of COMPASS RICH-1. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 553. Elsevier Science BV; 2005: 215-219.COMPASS RICH-1, a gas-radiator RICH detector with large transversal dimensions, which makes use of MWPC with CsI photocathodes as photon detectors, is in operation at COMPASS since 2001. The behaviour of the detector components is optimised and fully understood. The characterisation of the detector is now complete. We report about the detector status and its response in the COMPASS environment. (c) 2005 Elsevier B.V. All rights reserved
Pearlite free structural steels
No full textThe effects of grain refinement and precipitation hardening conferred by minor additions of Nb and V have been studied in both as rolled and normalised low carbon experimental steels. The mechanical properties of such steels are outlined and related to their structures. (Messrs J.A. Chapman, Special Project Leader, Metallurgical Division, BIRSA, R. Philips, Section Leader, Research Department, Colvilles Ltd. and Dr. R.L. Craik, Head of Laboratories, Metallurgy Division, BIRSA, England
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