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Performance of a large area non focusing Čerenkov counter and absolute yield of Čerenkov light

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Il Nuovo Cimento (1955-1965)

Summary

The design and the performance of a large area, comparatively thin toluene Čerenkov counter are described. The velocity resolution of non focusing Čerenkov counters and its basic limitation, due to the Landau fluctuations in the emission of fast knock-on electrons, are discussed and compared with those of scintillation counters. The absolute yield of the Čerenkov light is evaluated from the measurements and found to be in good agreement with the theoretical yield.

Riassunto

Vengono illustrati la costruzione e le prestazioni di un contatore di Čerenkov a toluolo di spessore relativamente piccolo. Viene discussa la risoluzione in velocità dei contatori di Čerenkov non focheggiati e la sua limitazione essenziale dovuta alle fluttuazioni di Landau nell’emissione di elettroni knock-on veloci. Viene effettuato un confronto fra l’intensità assoluta della luce di Čerenkov ottenuta sperimentalmente e quella calcolata a partire dalla formula di Frank e Tamm. L’accordo fra i valori teorici e sperimentali è buono.

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Author notes

  1. G. Caglioti & R. Cervellati

    Present address: the Comitato Nazionale Ricerche Nucleari, Roma

Authors and Affiliations

  1. Istituto di Fisica dell’Università, Roma

    G. Caglioti, R. Cervellati & L. Mezzetti

  2. Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Italy

    G. Caglioti, R. Cervellati & L. Mezzetti

Authors
  1. G. Caglioti
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  2. R. Cervellati
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  3. L. Mezzetti
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Caglioti, G., Cervellati, R. & Mezzetti, L. Performance of a large area non focusing Čerenkov counter and absolute yield of Čerenkov light. Nuovo Cim 11, 850–860 (1959). https://doi.org/10.1007/BF02732551

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  • DOI: https://doi.org/10.1007/BF02732551

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