Showing papers by "Wladyslaw Dabrowski published in 1998"
CERN1, GSI Helmholtz Centre for Heavy Ion Research2, University of Florence3, Rutgers University4, University of Grenoble5, Ohio State University6, University of Bristol7, Los Alamos National Laboratory8, Lawrence Livermore National Laboratory9, University of Pavia10, Sandia National Laboratories11, University of Toronto12
21 May 1998-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the results from beam tests using a diamond strip detector which was read out with fast, 25 ns shaping time, radiation-hard pipeline electronics are presented. But the diamond is not suitable for use in trackers in the LHC experiments.
Abstract: CVD diamond radiation sensors are being developed for possible use in trackers in the LHC experiments. The diamond promises to be radiation hard well beyond particle fluences that can be tolerated by Si sensors. Recent results from the RD 42 collaboration on charge collection distance and on radiation hardness of CVD diamond samples will be reported. Measurements with diamond tracking devices, both strip detectors and pixel detectors, will be discussed. Results from beam tests using a diamond strip detector which was read out with fast, 25 ns shaping time, radiation-hard pipeline electronics will be presented.
25 citations
Rutgers University1, University of Florence2, University of Turin3, Ohio State University4, University of Bristol5, Centre national de la recherche scientifique6, University of Melbourne7, CERN8, Carnegie Mellon University9, University of Toronto10, Illinois Institute of Technology11, Los Alamos National Laboratory12
TL;DR: In this article, the performance of diamond sensors after irradiation to fluences of up to 5/spl times/10/sup 15/ hadrons/cm/sup 2/ are shown.
Abstract: Recent progress on developing diamond-based sensors for vertex detection at high luminosity hadron colliders is described. Measurements of the performance of diamond sensors after irradiation to fluences of up to 5/spl times/10/sup 15/ hadrons/cm/sup 2/ are shown. These indicate that diamond sensors will operate at distances as close as 5 cm from the interaction point at the Large Hadron Collider (LHC) for many years at full luminosity without significant degradation in performance. Measurements of the quality of the signals from diamond sensors as well as spatial uniformity are presented. Test beam results on measurements of diamond-based microstrip and pixels devices are described.
16 citations
21 Nov 1998-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The RD42 project as mentioned in this paper developed a low-noise radiation hard readout electronics based on CVD diamond for particle accelerators and experiments, which is an ideal material for the detectors close to the interaction region of these experiments.
Abstract: To continue the exciting research in the field of particle physics new accelerators and experiments are under construction. In some of these experiments, e.g. ATLAS and CMS at the Large Hadron Collider at CERN or HERA-B at DESY, the detectors have to withstand an extreme environment. The detectors must be radiation hard, provide a very fast signal, and be as thin as possible. The properties of CVD diamond allow to fulfill these requirements and make it an ideal material for the detectors close to the interaction region of these experiments, i.e. the vertex detectors or the inner trackers. The RD42 collaboration is developing diamond detectors for these applications. The program of RD42 includes the improvement of the charge collection properties of CVD diamond, the study of the radiation hardness and the development of low-noise radiation hard readout electronics. An overview of the progress achieved during the last years will be given.
16 citations
01 Jan 1998
13 citations
21 Dec 1998-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the multiplicity detector in the NA50 experiment was exposed to charged particle fluences up to 10 14 ǫn/cm 2 and ionising doses up to 20 Mrad with a very non-uniform radiation spatial distribution.
Abstract: During operation of the multiplicity detector in the NA50 experiment the single sided AC-coupled p-on-n silicon strip detectors were exposed to charged particle fluences up to 10 14 eq n/cm 2 and ionising doses up to 20 Mrad, with a very non-uniform radiation spatial distribution. Radiation effects in the detectors observed during the ’96 lead ion run as well as results of the post-run measurements are presented in this paper.
5 citations
21 May 1998-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, a fast silicon detector system (50MHz sampling frequency) was designed, realized and operated to measure the angular distribution and the multiplicity of charged secondaries produced in high-energy Pb-Pb interactions, within the NA50 experiment.
Abstract: We have designed, realized and operated a fast silicon detector system (50 MHz sampling frequency) to measure the angular distribution and the multiplicity of charged secondaries produced in high-energy Pb–Pb interactions, within the NA50 experiment. We present here the detector design, discuss some of the problems faced during the commissioning and report on the first results on the operation of the full system. In particular, the questions related to the operation of an integrated high-speed binary readout in a high-radiation environment (1014 particles/cm2 and about 10 Mrads) and to the radiation effects on the system during the run will be addressed.
5 citations
01 Jan 1998
TL;DR: In this article, a 16-channel readout chip for a X-ray detection system using silicon strip detectors is presented, which is a full custom ASIC for the AMS 1.2 μm CMOS process.
Abstract: A prototype 16-channel readout chip for a X-ray detection system using silicon strip detectors is presented. The chip has been designed as a full custom ASIC for the AMS 1.2 μm CMOS process. Single channel of the circuit consists of low noise, medium speed preamplifier, followed by a shaper and a discriminator. Such a system allows to use silicon strip detectors in the single photon counting mode. Key design issues and optimization of critical design parameters are discussed. Measurement results from the successfully manufactured prototype are presented and discussed.
01 Feb 1998
TL;DR: In this paper, the performance of a beam test of a binary silicon strip system proposed for ATLAS has been evaluated using a high-resolution telescope, and the efficiency, noise occupancy, and position resolution were determined as a function of the threshold setting for various bias voltages and angles of incidence.
Abstract: We report on the results from a beam test of a binary silicon strip system proposed for ATLAS. The data were collected during the H8 beam test at CERN in 1995 and at a beam test at KEK in 1996. The binary modules tested had been assembled from silicon micro-strip detectors of different layout and from front-end electronics chips of different architecture. The efficiency, noise occupancy, and position resolution were determined as a function of the threshold setting for various bias voltages and angles of incidence. Interstrip effects were also evaluated using a high resolution telescope. The performance of a prototype detector module irradiated to a fiuence of 1.2 × 10 14 p/cm 2 is also characterized.