نتایج جستجو برای: semiconductor detector

تعداد نتایج: 117688  

2008
H. Watanabe M. Shiozawa S. Hazama L. R. Sulak M. Goldhaber J. P. Cravens W. R. Kropp D. W. Liu M. B. Smy C. W. Walter T. Kobayashi T. Nakadaira K. Nakamura K. Nishikawa Y. Oyama K. Sakashita T. Sekiguchi T. Tsukamoto A. T. Suzuki A. K. Ichikawa M. Yokoyama T. J. Haines C. K. Jung H. K. Seo H. G. Berns K. K. Shiraishi E. Thrane R. J. Wilkes

A first study of neutron tagging is conducted in Super–Kamiokande, a 50,000-ton water Cherenkov detector. The tagging efficiencies of thermal neutrons are evaluated in a 0.2 % GdCl3-water solution and pure water. They are determined to be, respectively, 66.7 % for events above 3 MeV and 20 % with corresponding background probabilities of 2 × 10 and 3 × 10. This newly developed technique may ena...

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1998
L. BAUDIS G. HEUSSER B. MAJOROVITS Y. RAMACHERS H. STRECKER

The potential of GENIUS as a dark matter detector is discussed. A study was performed to demonstrate the good behaviour of the proposed detector design of naked HPGe-crystals in liquid nitrogen. The expected background components were simulated and are discussed in some detail.With the obtained background GENIUS could cover a large part of the favoured MSSM parameter-space.

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2008
XU WANG JORGE L. LOPEZ D. V. NANOPOULOS

We compute the scattering rates for the lightest neutralino χ1 in the forthcoming germanium (73Ge+76Ge) detector and a proposed lead detector (207Pb), within the framework of SU(5) × U(1) supergravity. We find that in only a small portion (<∼ 10%) of the parameter spaces of this class of models, are the rates in the germanium detector above the expected initial experimental sensitivity of 0.1 e...

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2015
Steve Mullins

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Journal: :Journal of synchrotron radiation 2006
Stephan Friedrich

Cryogenic detectors operated at temperatures below 1 K offer an order of magnitude higher energy resolution than conventional semiconductor-based energy-dispersive detectors, and orders of magnitude higher efficiency that grating spectrometers. Initially developed for astrophysics applications, these detectors are increasingly used in synchrotron-based research, both for detector characterizati...

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2005
F. Jundt C. Kuhn

The response of a double-sided silicon strip detector to a 3 GeV pion beam from the Proton Synchrotron at CERN is presented. Charge matching between the pulseheights from both sides, produced by the same traversing particle, is obtained with a resolution better than 5%. The spatial resolution is measured as a function of the incident angle of the projectile, varying from 15 m at normal incidenc...

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2003
C. Issever

We present the status of the forward-backward charge asymmetry measurement for W boson production using early Run 2 data collected with the Collider Detector at Fermilab (CDF). Tracking for forward electrons is a critical component of this measurement, and we describe a new technique which combines the position and energy measurements from the calorimeter with position measurements in the silic...

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2003
C. Issever

We present the status of the forward-backward charge asymmetry measurement for W boson production using early Run 2 data collected with the Collider Detector at Fermilab (CDF). Tracking for forward electrons is a critical component of this measurement, and we describe a new technique which combines the position and energy measurements from the calorimeter with position measurements in the silic...

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1999
Sheldon Stone

RICH detectors have become extraordinarily useful. Results include measurement of solar neutrino rates, evidence for neutrino oscillations, measurement of TeV γ-rays from gravitational sources, properties of QCD, charm production and decay, and measurement of the CKM matrix elements Vcs, Vcb and Vub. A new value |Vub/Vcb| = 0.087 ± 0.012 is determined. . . . . . . . . . . . . . . . . . . . . . ...

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1999
Jan Biemond Peter M. B. van Roosmalen Reginald L. Lagendijk

Blotches are common artifacts in old film sequences that manifest themselves as disturbing bright or dark spots. Existing methods for detecting blotches can achieve high detection rates. High detection rates are only useful if the corresponding number of false alarms is not too high, visible artifacts in the corrected sequence result otherwise. We show that the performance of blotch detectors c...

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