Summary
The theory of the loss of energy of a non accelerated charged particle in a material medium is investigated, using classical electrodynamics. Special attention is given to the mechanism of the loss. The results of Fermi, Halpern and Hall, Wick and A. Bohr are generalized and further extended. The points of view of action at a distance (Bohr) and field theory (Fermi) are discussed and compared. The mechanism of the emission of Cerenkov radiation is examined and the relations with the emission of acceleration radiation analysed.
Riassunto
Si esamina la teoria della perdita d’energia di una particella carica non accelerata in un. mezzo materiale nell’ambito dell’elettrodinamica classica, dando spéciale rilievo al meocanismo della perdita. Si generalizzano e si estendono ulteriormente i risultati di Fermi, Halpern e Hall e di Wick e A. Bohr. Si discutono e si confrontano i punti di vista dell’azione a distanza (Bohr) e della teoria del campo (Fermi). Si discute, infine, il meccanismo dell’emissione della radiazione di Cerenkov e se ne analizzano le relazioni con l’emissione della radiazione d’accelerazione.
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Schönberg, M. Mechanism of the loss of energy by collisions in a material medium (I). Nuovo Cim 8, 159–184 (1951). https://doi.org/10.1007/BF02773052
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DOI: https://doi.org/10.1007/BF02773052