Behavior of TPCs in a high particle flux environment

TPCs (time projection chambers) used in E-810 at the AGS (alternating gradient synchrotron) were exposed to fluxes equivalent to more than 10/sup 7/ minimum ionizing particles per second to find if such high fluxes cause high changes or distortions of the electric field. Initial results of these and...

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Veröffentlicht in:	IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) 1992-08, Vol.39 (4), p.696-700
Hauptverfasser:	Etkin, A., Eiseman, S.E., Foley, K.J., Hackenburg, R.W., Longacre, R.S., Love, W.A., Morris, T.W., Platner, E.D., Saulys, A.C., Lindenbaum, S.J., Chan, C.S., Kramer, M.A., Zhao, K.H., Zhu, Y., Hallman, T.J., Madansky, L., Ahmad, S., Bonner, B.E., Buchanan, J.A., Chiou, C.N., Clement, J.M., Mutchler, G.S., Roberts, J.B.
Format:	Artikel
Sprache:	eng
Schlagworte:	430303 - Particle Accelerators- Experimental Facilities & Equipment 440104 - Radiation Instrumentation- High Energy Physics Instrumentation ACCELERATORS BROOKHAVEN AGS Cities and towns Counting circuits CYCLIC ACCELERATORS Educational institutions ELECTRIC FIELDS Electrodes Engineering Engineering, Electrical & Electronic Exact sciences and technology FLUX DENSITY HEAVY ION ACCELERATORS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Instruments, apparatus, components and techniques common to several branches of physics and astronomy Ion beams Laboratories Nuclear and plasma sciences Nuclear Science & Technology Other topics in instruments, apparatus, components and techniques common to several branches of physics and astronomy PARTICLE ACCELERATORS PERFORMANCE TESTING Physics PLASMA Position measurement RELATIVISTIC PLASMA Science & Technology SYNCHROTRONS Technology TEST FACILITIES TESTING TIME PROJECTION CHAMBERS
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Zusammenfassung:	TPCs (time projection chambers) used in E-810 at the AGS (alternating gradient synchrotron) were exposed to fluxes equivalent to more than 10/sup 7/ minimum ionizing particles per second to find if such high fluxes cause high changes or distortions of the electric field. Initial results of these and other tests are presented and the consequences for the RHIC (relativistic heavy ion collider) TPC-based experiments are discussed. Measurements of distortions due to ion loading in the E-810 TPCs have been measured to be small even at very high effective particle fluxes. This results supports the use of TPCs at RHIC, even at the highest planned luminosity. In addition, measurement of two-vertex resolution and reconstruction efficiency at high track density showed that a TPC is an excellent detector for the RHIC.< >
ISSN:	0018-9499 1558-1578
DOI:	10.1109/23.159690