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Light pulses excited by α particles in argon. A gaseous scintillation detector

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Il Nuovo Cimento (1955-1965)

Summary

The light pulses produced by the passage of individual α-particles through gases have been detected and analyzed by means of a suitable experimental technique. In Part I, the time shape of pulses obtained with argon of various purities is studied with respect to the mechanism of photon production. In Part II, we deal with the possibilities of the particle detectors based on the gas scintillation. A scintillation chamber filled with argon was found to be suitable for the spectral analysis of α-particles, yielding a 13% resolution at ~ 5 MeV, for instance. The resolving time of this instrument is a very short one.

Riassunto

Si descrivono metodi per rivelare ed analizzare gli impulsi di luce prodotti dal passaggio di singole particelle α nei gas. Nella Parte I si studia l’andamento temporale di impulsi ottenuti con argon di varie purezze ed i risultati si mettono in relazione con il meccanismo di produzione dei fotoni. Nella Parte II, si tratta dell’utilizzazione di questi impulsi per la realizzazione di strumenti rivelatori di particelle α. Si descrive una camera a scintillazione funzionante con argon, che consente l’analisi spettrale di particelle α con una risoluzione che è dell’ordine del 13% a ~ 5 MeV, ed offre un tempo risolutivo particolarmente breve.

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Forte, M. Light pulses excited by α particles in argon. A gaseous scintillation detector. Nuovo Cim 3, 1443–1455 (1956). https://doi.org/10.1007/BF02785020

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  • DOI: https://doi.org/10.1007/BF02785020

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