Journal Article

FZJ-2019-06795

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Improved Rise Approximation Method for Pulse Arrival Timing

Jokhovets, L. (Corresponding author)FZJ* ; Erven, A.FZJ* ; Grewing, C.FZJ* ; Herzkamp, M.FZJ* ; Kulessa, P.FZJ* ; Ohm, H. ; Pysz, K. ; Ritman, J.FZJ* ; Serdyuk, V.FZJ* ; Streun, M.FZJ* ; Waasen, S. V.FZJ* ; Wintz, P.FZJ*

2019
IEEE New York, NY

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Please use a persistent id in citations: doi:10.1109/TNS.2019.2923382

Abstract: This paper describes the deduction of pulse arrivaltimes from digital waveforms recorded with a multichannel data-acquisition (DAQ) system. A linear rise approximation (LRA)arrival timing method provides restricted timing resolution forpulses with nonlinear rise. It reaches 1/20th of the samplingperiod, if the relation between signal shaping and sampling rate isoptimized. We introduce a nonlinear rise approximation (nLRA),which reduces the sampling phase error (SPE) down to lessthan 1/100th of the sampling period. The proposed timingalgorithm uses a single free parameter that can easily be adjustedfor various radiation detectors. The technique permits using arather slow pulse shaping and low sampling rates, thus stronglyreducing power consumption and the costs of the system. A high-density DAQ system integrating over 2000 channels inside anOpenVPX crate is presented. A prototype has been tested in theproton beam at cooler synchrotron (COSY) at Jülich ResearchCenter (Germany).

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Contributing Institute(s):

1. Zentralinstitut für Elektronik (ZEA-2)
2. Experimentelle Hadronstruktur (IKP-1)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)

Appears in the scientific report 2019

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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