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000129096 037__ $$aFZJ-2013-00617
000129096 041__ $$aEnglish
000129096 1001_ $$0P:(DE-Juel1)133959$$aWüstner, Peter$$b0$$eCorresponding author
000129096 1112_ $$a2012 IEEE Real-Time Conference$$cBerkeley, California$$d2012-06-11 - 2012-06-15$$gIEEE RT2012$$wUSA
000129096 245__ $$aSophisticated Online Analysis in ADC Boards
000129096 260__ $$c2012
000129096 3367_ $$033$$2EndNote$$aConference Paper
000129096 3367_ $$2BibTeX$$aINPROCEEDINGS
000129096 3367_ $$2DRIVER$$aconferenceObject
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000129096 520__ $$aFor the readout of the calorimeter of the WASA at COSY experiment a QDC board using sampling ADCs and FPGAs to perform the pulse integration was developed. In the initial version only a simple pulse finding algorithm was implemented in order to avoid delay cables by storing the digitized signals in a pipeline of a few microseconds. Recently a new version with 16 ADCs at a sample rate of 240 MHz and 12 Bit resolution was developed for tests of cylindrical drift chambers (straw tubes) in the Straw Tube Tracker of the PANDA experiment. The goal was to measure the energy loss by charge readout in addition to drift time measurement. Due to the irregular cluster structure of the straw signals complex algorithms for pulse finding, pulse feature extraction and triggering were implemented. The algorithm can detect pile up and find pulse groups. Integration is possible over single pulses and over complete groups. Different methods for the calculation of starting time, including constant fraction, are implemented. Internal trigger generation depends on various criteria, e.g. slew rate, amplitude or sum of consecutive samples.
000129096 536__ $$0G:(DE-HGF)POF2-53G32$$a53G - COSY (POF2-53G32)$$cPOF2-53G32$$fPOF II$$x0
000129096 7001_ $$0P:(DE-Juel1)130632$$aErven, Andreas$$b1
000129096 7001_ $$0P:(DE-Juel1)133883$$aErven, Wilhelm$$b2
000129096 7001_ $$0P:(DE-Juel1)133902$$aKemmerling, Günter$$b3
000129096 7001_ $$0P:(DE-Juel1)133905$$aKleines, Harald$$b4
000129096 7001_ $$0P:(DE-Juel1)131225$$aKulessa, Pawel$$b5
000129096 7001_ $$0P:(DE-HGF)0$$aMaciniewski, Pawel$$b6
000129096 7001_ $$0P:(DE-Juel1)131276$$aOhm, Henner$$b7
000129096 7001_ $$0P:(DE-HGF)0$$aPysz, Krzysztof$$b8
000129096 7001_ $$0P:(DE-Juel1)131329$$aSerdyuk, Valeriy$$b9
000129096 7001_ $$0P:(DE-Juel1)142562$$avan Waasen, Stefan$$b10
000129096 7001_ $$0P:(DE-Juel1)131376$$aWintz, Peter$$b11
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000129096 9131_ $$0G:(DE-HGF)POF2-53G32$$1G:(DE-HGF)POF2-530$$2G:(DE-HGF)POF2-500$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bStruktur der Materie$$lPhysik der Hadronen und Kerne$$vCOSY$$x0
000129096 9141_ $$y2012
000129096 920__ $$lyes
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000129096 9201_ $$0I:(DE-Juel1)IKP-2-20111104$$kIKP-2$$lExperimentelle Hadrondynamik$$x2
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