Summary
An electron detector, which consists of five elements, each one being made of a lead layer followed by a plastic scintillation counter and a two-gap spark chamber, is described. The rejection power of this new detector against pions is of the order of 4·10−4, the efficiency for electron detection varies from 75% to 85%, and the energy resolution can be as good as 10%, in the energy range 1.1 GeV to 2.5 GeV.
Riassunto
Si descrivono i parametri costruttivi ed i risultati ottenuti con un sistema che consiste di cinque elementi, ciascuno dei quali consta di uno strato di piombo seguito da uno scintillatore plastico e da una camera a scintilla a doppio gap, e che possiede un potere di reiezione contro i pioni dell’ordine di 4·10−4, con una efficienza per rivelazione di elettroni che varia tra 75% e 85% nell’intervallo di energia da 1.1 GeV a 2.5 GeV. La risoluzione in energia di questo apparato può raggiungere il 10%.
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Literatur
H. Faissner, F. Ferrero, A. Ghani, F. Krienen, T. B. Novey andM. Reinharz:Proceedings of the 1962 Conference on Instrumentation for High-Energy Physics (CERN), p. 161.
G. Backenstoss, B. D. Hyams, G. Knop andU. Stierlin:Nucl. Instr. and Meth.,21, 155 (1963);20, 294 (1963).
R. A. Zdanis, L. Madansky, R. W. Kraemer, S. Hertzbach andR. Strand: preprint.
C. A. Heusch andC. Y. Prescott: CTSL-41.
H. Ruderman, R. Gomez andA. V. Tollestrup: CTSL-31.
T. Massam, Th. Muller andA. Zichichi: CERN-63-25. Also,Proceedings of the Sienna International Conference on Elementary Particles (1964), p. 488.
M. Vivargent, G. von Dardel, R. Mermod, G. Weber andK. Winter:Nucl. Instr. and Meth.,22, 165 (1963).
This is a result which we have obtained using the instrument described byG. Gatti, G. Giacomelli, W. A. Lowe, W. C. Middelkoop andT. Yamagata:Rev. Sci. Instr.,32, 848 (1961).
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The help of our technicians Messrs.J. Berbiers, K. Ley andB. Nicolai is highly appreciated.
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Massam, T., Muller, T., Schneegans, M. et al. A new electron detector with high rejection power against pions. Nuovo Cim 39, 464–473 (1965). https://doi.org/10.1007/BF02735816
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DOI: https://doi.org/10.1007/BF02735816