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A new method to induce transitions in muonic atoms using a high-power tunable dye laser coupled to a stopping muon beam

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Il Nuovo Cimento B (1971-1996)

Summary

An apparatus is described in which a ruby-pumped dye laser is used to induce transitions from the 2S to the 2P levels of the muonic ion (μHe)+. The dye laser supplies infra-red radiation pulses in the wavelengths (8040÷8180) Å, at typical repetition rates of 1 pulse every 4 s, with an energy release per pulse of 300 mJ for 1.2 J pumping

Riassunto

Si descrive un apparato che utilizza un laser a colorante pompato da un laser a rubinoQ-switched per indurre transizioni dal livello 2S ai livelli 2P dello ione muonico (μHe)+. Il laser a colorante fornisce impulsi di radiazione infrarossa nell’intervallo di lunghezza d’onda (8040÷8180) Å, con una frequenza di ripetizione di un impulso ogni 4 secondi, e con un’energia di 300 mJ per impulso se l’energia di pompaggio è di 1.2 J. Il laser è accoppiato con un dispositivo speciale al fascio di muoni fermati in un bersaglio riempito con elio gassoso a pressioni fra 40 e 50 atm. Le altre prestazioni dell’apparato sono discusse sia per quanto riguarda il laser e lo speciale bersaglio di elio ad alta pressione.

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  13. The Bradley laser was kindly lent to us by the NPA-TC Division, CERN. Thanks are due to Dr.M. J. Price and Mr.G. Lecoeur for making the Bradley laser available to our group.

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Bertin, A., Carboni, G., Placci, A. et al. A new method to induce transitions in muonic atoms using a high-power tunable dye laser coupled to a stopping muon beam. Nuovo Cim B 23, 489–526 (1974). https://doi.org/10.1007/BF02723651

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  • DOI: https://doi.org/10.1007/BF02723651

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