Giles Barr: Publications

Measurement of the K-S mean lifetime from pi(+)pi(-) and pi(0)pi(0) decays using K-L decays to determine the acceptance

73 (1997) 629-632

Authors:

L Bertanza, A Bigi, P Calafiura, M Calvetti, R Carosi, MC Carrozza, R Casali, C Cerri, R Fantechi, I Mannelli, VM Marzulli, A Nappi, GM Pierazzini, L Tassi, GD Barr, P Buchholz, D Coward, D Cundy, N Doble, L Gatignon, P Grafstrom, R Hagelberg, H Wahl, KJ Peach, T Beier, H Blumer, R Heinz, K Kleinknecht, B PanzerSteindel, B Renk, H Rohrer, J Scheidt, J Staeck, A Wagner, E Auge, D Fournier, L IconomidouFayard, O Perdereau, AC Schaffer, L Serin, M Holder, A Kreutz, R Werthenbach

Measurement of the decay rate and the parameter alpha(K)* of the decay K-L ->mu mu gamma

76 (1997) 653-657

Authors:

V Fanti, A Lai, L Musa, A Nappi, MG Setzu, RW Moore, DJ Munday, MA Parker, SF Takach, TO White, G Barr, G Bocquet, J Bremer, A Ceccucci, J Cogan, D Cundy, N Doble, G Fischer, W Funk, L Gatignon, A Gianoli, A Gonidec, P Grafstrom, W Kubischta, V Marzulli, G Kesseler, JP Matheys, A Norton, S Palestini, B Panzer-Steindel, H Taureg, M Velasco, O Vossnack, H Wahl, V Kekelidze, I Kojevnikov, I Potrebenikov, G Tatichvili, A Tkatchev, L Bertolotto, O Boyle, B Hay, NE Mc Kay, G Oakland, H Parsons, KJ Peach, C Talamonti, A Walker, P Dalpiaz, J Duclos, A Formica, PL Frabetti, M Martini, F Petrucci, M Porcu, F Rossi, M Savrie, C Simani, A Bizzeti, M Calvetti, M Lenti, A Michetti, HG Becker, T Beier, H Blumer, P Buchholz, D Coward, C Ebersberger, A Kalter, K Kleinknecht, U Koch, L Kopke, F Leber, S Luitz, B Renk, J Scheidt, J Schmidt, V Schonharting, R Wilhelm, O Zeitnitz, JC Chollet, S Crepe, L Fayard, J Ocariz, G Unal, G Anzivino, P Cenci, P Lubrano, M Pepe, P Calafiura, R Carosi, R Casali, C Cerri, F Costantini, R Fantechi, S Giudici, B Gorini, I Mannelli, G Pierazzini, M Sozzi

A fully software-programmable pipelined trigger-processing module

IEEE Transactions on Nuclear Science 43:3 PART 2 (1996) 1689-1694

Authors:

GD Barr, F Formenti, W Iwanski, P Kapusta, H Wahl, M Ziolkowski

Abstract:

We describe a general purpose 40MHz pipelined trigger processing board containing six look-up tables and the logic needed to programmably route the signals between them. A series of identical boards are connected in cascade in the NA48 CP-violation experiment at CERN, accept digital inputs generated from calorimeter signals and are used to perform the different computations necessary for the trigger reconstruction. The board architecture is designed to be flexible so that a single basic hardware design can perform all the different algorithms we require and so that the trigger algorithms can be adapted if needed. The computation latency of the combined network of eight boards is approximately 3μs. We present examples of some of the functions which have been implemented. We discuss the automatic reprogramming software which has been developed so that a new design can be implemented easily. © 1996 IEEE.

High rate large dynamic range analog circuitry and digitizers for fast calorimetry

IEEE Transactions on Nuclear Science 43:3 PART 2 (1996) 1605-1609

Authors:

B Hallgren, F Bal, GD Barr, P Buchholz, F Formenti, W Funk, Y Kozhevnikov, A Lacourt, G Laverrière, M Martini, A Papi, P Ponting, M Sozzi, O Vossnack, H Wahl

Abstract:

This paper describes the issues encountered in the design of a large dynamic range digitizer for calorimetry. A gain switching technology developed for the liquid krypton calorimeter of the NA48 CP-violation experiment at CERN is described in detail. 14 bit dynamic range and better than 300 ps time resolution were achieved in beam tests with an 8 channel prototype. A mixed analog/digital ASIC has been developed. A 13'500 channel system is being produced which will be put into operation in 1996. © 1996 IEEE.

The SOUDAN 2 detector: The operation and performance of the tracking calorimeter modules

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 381:2-3 (1996) 385-397

Authors:

WWM Allison, GJ Alner, I Ambats, DS Ayres, LJ Balka, GD Barr, WL Barrett, D Benjamine, C Bode, PM Border, CB Brooks, JH Cobb, DJA Cockerill, K Coover, RJ Cotton, H Courant, BB Dahlin, U DasGupta, JW Dawson, DM Demuth, VW Edwards, B Ewen, TH Fields, C Garcia-Garcia, HM Gallagher, RH Giles, GL Giller, MC Goodman, RN Gray, S Heppelmann, N Hill, JH Hoftiezer, DJ Jankowski, K Johns, T Joyce, T Kafka, SMS Kasahara, LM Kirby-Gallagher, J Kochocki, W Leeson, PJ Litchfield, NP Longley, FV Lopez, MJ Lowe, WA Mann, ML Marshak, EN May, D Maxam, L McMaster, R Milburn, WH Miller, CP Minor, N Mondal, L Mualem, A Napier, EM Nelson, R Nickson, W Oliver, GF Pearce, DH Perkins, EA Peterson, LE Price, DM Roback, DB Rosen, K Ruddick, B Saitta, DJ Schmid, J Schlereth, J Schneps, MH Schub, RV Seidlein, PD Shield, MA Shupe, S Spear, A Stassinakis, N Sundaralingam, MA Thomson, JL Thron, V Vassiliev, G Villaume, SP Wakely, D Wall, EWG Wallis, L Weems, SJ Werkema, N West, U Wielgosz, CA Woods, S Yarker

Abstract:

SOUDAN 2 is a 960-ton tracking calorimeter which has been constructed to search for nucleon decay and other phenomena. The full detector consists of 224 calorimeter modules each weighing 4.3 tons. The modules consist of finely segmented iron instrumented with 1 m long drift tubes of 15 mm internal diameter. The tubes enable three spatial coordinates and dE/ dx to be recorded for charged particles traversing the tubes. The spatial resolution is 0.38 cm in the x-y plane and 0.65 cm in the z, or drift, direction. The operation and performance of the modules are discussed.

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Giles Barr

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Measurement of the K-S mean lifetime from pi(+)pi(-) and pi(0)pi(0) decays using K-L decays to determine the acceptance

Authors:

Measurement of the decay rate and the parameter alpha(K)* of the decay K-L ->mu mu gamma

Authors:

A fully software-programmable pipelined trigger-processing module

Authors:

Abstract:

High rate large dynamic range analog circuitry and digitizers for fast calorimetry

Authors:

Abstract:

The SOUDAN 2 detector: The operation and performance of the tracking calorimeter modules

Authors:

Abstract:

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Giles Barr

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Measurement of the K-S mean lifetime from pi(+)pi(-) and pi(0)pi(0) decays using K-L decays to determine the acceptance

Authors:

Measurement of the decay rate and the parameter alpha(K)* of the decay K-L ->mu mu gamma

Authors:

A fully software-programmable pipelined trigger-processing module

Authors:

Abstract:

High rate large dynamic range analog circuitry and digitizers for fast calorimetry

Authors:

Abstract:

The SOUDAN 2 detector: The operation and performance of the tracking calorimeter modules

Authors:

Abstract: