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6 results on '"Truong K"'

1. BaBar DIRC electronics front-end chain

Author

Bailly, P., Beigbeder, C., Bernier, R., Breton, D., Bonneaud, G., Caceres, T., Chase, R., Chauveau, J., Del Buono, L., Dohou, F., Ducorps, A., Gastaldi, G., Genat, J.F., Hrisoho, A., Imbert, P., Lebbolo, H., Matricon, P., Oxoby, G., Renard, C., Roos, L., Sen, S., Thiebaux, C., Truong, K., Tocut, V., Vasileidis, G., Va'Vra, J., Verderi, M., Warner, D., Wilson, R.J., Wormser, G., Zhang, B., and Zomer, F.

Subjects
Real-time data processing -- Analysis, Photodetectors -- Analysis, Cherenkov radiation -- Analysis, Photoelectrons -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

The Front-End electronics of the Detector of Internally Reflected Cerenkov light (DIRC) for the BaBar experiment is presented. Its aim is to measure to better than 1ns the arrival time of Cerenkov photoelectrons, detected in a 11,000 phototubes array and their amplitude spectra. It mainly comprises 64-channel DIRC Front-End Boards (DFB) equipped with eight full-custom Analog Chips performing zero-cross discrimination with 2 mV threshold and pulse shaping, four full-custom Digital TDC chips for timing measurements with 500 ps binning and a readout logic selecting hits in the trigger window, and DIRC Crate Controller cards (DCC) serializing the data collected from up to 16 DFBs onto a 1.2 Gb/s optical link. Extensive test results of the pre-production chips will be presented, as well as system tests.

Published
1998

2. An internally reflecting Cherenkov detector (DIRC): properties of the fused silica radiators

Author

Adam, I., Aleksan, R., Aston, D., Bailly, P., Beigbeder, C., Benayoun, M., Benkebil, M., Bonneaud, G., Breton, D., Briand, H., Brown, D. Noppe, J.-M., Bourgeois, Ph. Oshatz, D., Chauveau, J. Oxoby, G., Cizeron, R. Plano, R., Cohen-Tanugi, J. Plaszczynski, S., Convery, M. Pripstein, M., David, P. Rasson, J., Vaissiere, C. de la Ratcliff, B., Lesquen, A. de Reif, R., Buono, L. del Renard, C., Fouque, G. Roos, L., Gaidot, A. Roussot, E., Gastaldi, F. Sarazin, X., Genat, J.-F. Schune, M.-H., Gosset, L. Schwiening, J., Hale, D. Sen, S., Monchenault, G. Hamel de Shelkov, V., Hamon, O. Sokoloff, M., Kadel, R. Staengle, H., Kadyk, J. Stiles, P., Karolak, M. Stone, R., Kawahara, H. Thiebaux, Ch., Krueger, H. Truong, K., Lebbolo, H. Toki, W., Leruste, P.H. Vasileiadis, G., Le Diberder, F. Vasseur, G., London, G. Va'vra, J., Long, M. Verderi, M., Lory, J. Versille, S., Lu, A. Warner, D., Lutz, A.-M. Weber, T., Lynch, G. Weber, T.F., McCulloch, M. Wenzel, W., McShurley, D. Wilson, R., Malchow, R. Wormser, G., Matricon, P. Yeche, Ch., Mayer, B. Yellin, S., Meadows, B. Zhang, B., and Narjoux, J.-L. Zito, M.

Subjects
Cherenkov counters -- Research, Nuclear counters -- Research, Business, Electronics, Electronics and electrical industries, Stanford Linear Accelerator Center -- Research
Abstract

The DIRC, a new type of ring-imaging Cherenkov detector that images internally reflected Cherenkov light, is being constructed as the main hadronic particle identification component of the BABAR detector at SLAC. The device makes use of 5 meter long fused silica (colloquially called quartz) bars, which serve both as the Cherenkov radiators and as light pipes for transmitting the light to an array of photo-multiplier tubes. This paper describes a program of research and development aimed at determining whether bars that meet the stringent requirements of the DIRC can be obtained from commercial sources. The results of studies of bulk absorption of fused silica, surface finish, radiation damage and bulk inhomogeneities are discussed.

Published
1998

3. The DIRC Front-end Electronics Chain for BaBar

Author

Bailly, P., Beigbeder, C., Bernier, R., Breton, D., Bonneaud, G., Caceres, T., Chase, R., Chauveau, J., Del Buono, L., Dohou, F., Ducorps, A., Gastaldi, F., Genat, J.F., Hrisoho, A., Imbert, P., Lebbolo, H., Matricon, P., Oxoby, G., Renard, C., Roos, L., Sen, S., Thiebaux, C., Truong, K., Tocut, V., Vasileiadis, G., Va'Vra, J., Verderi, M., Warner, D., Wilson, R.J., Wormser, G., Zhang, B., and Zomer, F.

Subjects
Nuclear research -- Observations, Photoelectrons -- Measurement, Business, Electronics, Electronics and electrical industries
Abstract

Recent results from the Front-End electronics of the Detector of Internally Reflected Cerenkov light (DIRC) for the BaBar experiment at SLAC (Stanford, USA) are presented. It measures to better than 1ns the arrival time of Cerenkov photoelectrons detected in a 11,000 phototubes array and their amplitude spectra. It mainly comprises 64-channel DIRC Front-End Boards (DFB) equipped with eight full-custom analog chips performing zero-cross discrimination with 2 mV threshold and pulse shaping, four full-custom digital time to digital chips (TDC) for timing measurements with 500 ps binning and a readout logic selecting hits in the trigger window, and DIRC Crate Controller cards (DCC) serializing the data collected from up to 16 DFBs onto a 1.2 Gb/s optical link. Extensive test results of the pre-production chips will be presented, as well as system tests.

Published
2000

4. DIRC, the internally reflecting ring imaging Cherenkov detector for BABAR

Author

Adam, I., primary, Aleksan, R., additional, Aston, D., additional, Bailly, P., additional, Beigbeder, C., additional, Benayoun, M., additional, Benkebil, M., additional, Bonneaud, G., additional, Breton, D., additional, Briand, H., additional, Brown, D., additional, Bourgeois, P., additional, Chauveau, J., additional, Cizeron, R., additional, Cohen-Tanugi, J., additional, Convery, M., additional, David, P., additional, De La Vaissiere, C., additional, De Lesquen, A., additional, Del Buono, L., additional, Fouque, G., additional, Gaidot, A., additional, Gastaldi, E., additional, Genat, J.-F., additional, Gosset, L., additional, Hale, D., additional, De Monchenault, G., additional, Hamon, O., additional, Kadel, R., additional, Kadyak, J., additional, Karolak, M., additional, Kawahara, H., additional, Krueger, H., additional, Lebbolo, H., additional, Lersute, P.H., additional, Le Diberder, F., additional, London, G., additional, Long, M., additional, Lory, J., additional, Lu, A., additional, Lutz, A.-M., additional, Lynch, G., additional, McCulloch, M., additional, McShurley, D., additional, Malchow, R., additional, Matricon, P., additional, Mayer, B., additional, Meadows, B., additional, Narjoux, J.-L., additional, Noppe, J.-M., additional, Oshatz, D., additional, Oxoby, G., additional, Plano, R., additional, Plaszczynski, S., additional, Pripstein, M., additional, Rasson, J., additional, Ratcliff, B., additional, Reif, R., additional, Renard, C., additional, Roos, L., additional, Roussot, E., additional, Sarazin, X., additional, Schune, M.-H., additional, Schwiening, J., additional, Sen, S., additional, Shelkov, V., additional, Sokoloff, M., additional, Staengle, H., additional, Stiles, P., additional, Stone, R., additional, Thiebaux, Ch., additional, Truong, K., additional, Toki, W., additional, Vasileiadis, G., additional, and Vasseur, G., additional

Published
1998
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6. The DELPHI time projection chamber

Author

Brand, C., Cairanti, G., Charpentier, P., Clara, M.P., Delikaris, D., Foeth, H., Heck, B.W., Hilke, H.J., Sulkowski, K., Aubert, C., Billoir, P., Boutonnet, C., Courty, P., Crozon, M., Delpierre, P., Diaczek, A., Mas, J., Saget, G., Tilquin, A., Turlot, J.P., Vergezac, P., Antilogus, P., Augustin, J.E., Gaillard, M., Gros, M.H., Hrisoho, A., Jean-Marie, B., Lepeltier, V., Noppe, J.M., Richard, F., Truong, K., Bolognese, T., Borgeaud, P., DeBeer, M., Jarry, P., Mur, M., Raoul, J.C., Ruhlmann, V., Sacquin, Y., Siegrist, P., Smadja, G., Turluer, M., Vilanova, D., Darbo, G., Vernocchi, F., Barring, O., Jarlskog, G., Kack, S., Lorstadt, B., and Mjornmark, U.

Abstract

The central tracking device of the DELPHI experiment is a time projection chamber (TPC) with an active volume of 2*1.34 m in length and 2.22 m in diameter. Since spring 1988 the TPC has undergone extensive tests in a cosmic ray setup. It has been equipped with its final readout electronics for one complete sector ( approximately 2000 channels) and has been operated since with cosmic rays as well as with the laser system and all the other calibration devices. First results indicate that the TPC behaves as expected, but more work and analysis is needed to quote final numbers. It will be installed in the LEP tunnel by early 1989. The authors describe the construction, the readout electronics, and the contribution of the TPC to the Delphi trigger. Emphasis is given to novel features which are not used in similar detectors.<>

Published
1989
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