Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Geza Szekely"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 389:245-250
Biologically inspired image/signal processing, in particular neural networks like the Pulse-Coupled Neural Network (PCNN), are revisited. Their use with high granularity high-energy physics detectors, as well as optical sensing devices, for filtering
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 381:502-507
This paper presents the implementation of the Dynamic Decay Adjustment (DDA) algorithm in a CNAPS parallel computer system having 128 processing nodes. The DDA algorithm has several inherent advantages, and the implementation of it in the CNAPS syste
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 351:466-471
We describe an experimental research prototype VME-module with three commercially available Intel 80170NX analog neural network chips. Each chip can hold one layer with up to 64 neurons of a feedforward network and a single module can thus be configu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 336:285-290
This paper describes the implementation of an analog neural network chip (Intel 80170NX ETANN) to filter a multi-signal read-out from flash-ADCs used in a liquid argon time projection chamber (ICARUS). The training and subsequent testing of the netwo
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 336:373-377
The scintillation light induced by 241 Am 5.5 MeV α- particles in liquid argon doped with about 2% xenon detected with a fused silica UV photomultiplier tube is investigated. The pulse-height spectrum, the anode pulse shape and the attenuation of th
Autor:
Jozsef Molnar, Clark S. Lindsey, Salvator Roberto Amendolia, Th. Lindblad, Bruce Denby, Age J. Eide, A. Spaziani, Geza Szekely
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 335:296-304
An analog VLSI neural network chip (ETANN) has been trained to detect secondary vertices in simulated data for a fixed target heavy flavour production experiment. The detector response and associative memory track finding were modelled by a simulatio
Autor:
Geza Szekely, Thomas Lindblad
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 328:603-606
This letter demonstrates how a neural network can be used to implement a “noise” filter in software as well as in hardware. An extension from this case to the problem of unfolding energy spectra recorded by high-resolution detectors is also prese
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 327:573-579
This paper demonstrates the implementation in hardware of an electrically trainable analog neural network (ETANN) for finding the position and width (FWHM) of an ion-beam hitting a strip-detector. This is accomplished using a single ETANN chip with 3
Autor:
Wlodzimierz Klamra, D. Lacarrère, P. Cennini, V. Vuillemin, W. Seidel, Th. Lindblad, M. Moulson, B. Lund-Jensen, Geza Szekely
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 324:263-268
The distributions of rise time for gridded ionization chambers filled with liquid argon and xenon are measured by means of two different techniques.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 306:540-543
A multiparameter data acquisition system based on a VME-PC/AT is described. In the present configuration it is possible to work with up to seven external ADC units. The PC-DOS environment and the Pascal language allows for software flexibility. The d