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Titolo:
Stopping power of low-energy deuterons in He-3 gas
Autore:
Raiola, F; Gyurky, G; Aliotta, M; Formicola, A; Bonetti, R; Broggini, C; Campajola, L; Corvisiero, P; Costantini, H; DOnofrio, A; Fulop, Z; Gervino, G; Gialanella, L; Guglielmetti, A; Gustavino, C; Imbriani, G; Junker, M; Kavanagh, RW; Moroni, PGP; Ordine, A; Prati, P; Roca, V; Rogalla, D; Rolfs, C; Romano, M; Schumann, F; Somorjai, E; Straniero, O; Strieder, F; Terrasi, F; Trautvetter, HP; Zavatarelli, S;
Indirizzi:
Ruhr Univ Bochum, Inst Phys Ionenstrahlen, D-4630 Bochum, Germany Ruhr Univ Bochum Bochum Germany D-4630 nstrahlen, D-4630 Bochum, Germany Atomki, Debrecen, Hungary Atomki Debrecen HungaryAtomki, Debrecen, Hungary Univ Milan, Dipartimento Fis, Milan, Italy Univ Milan Milan ItalyUniv Milan, Dipartimento Fis, Milan, Italy Ist Nazl Fis Nucl, I-20133 Milan, Italy Ist Nazl Fis Nucl Milan Italy I-20133 azl Fis Nucl, I-20133 Milan, Italy Ist Nazl Fis Nucl, Padua, Italy Ist Nazl Fis Nucl Padua ItalyIst Nazl Fis Nucl, Padua, Italy Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy Univ Naples Federico II Naples Italy ipartimento Sci Fis, Naples, Italy Ist Nazl Fis Nucl, I-80125 Naples, Italy Ist Nazl Fis Nucl Naples Italy I-80125 l Fis Nucl, I-80125 Naples, Italy Univ Genoa, Dipartimento Fis, Genoa, Italy Univ Genoa Genoa ItalyUniv Genoa, Dipartimento Fis, Genoa, Italy Ist Nazl Fis Nucl, I-16146 Genoa, Italy Ist Nazl Fis Nucl Genoa Italy I-16146 azl Fis Nucl, I-16146 Genoa, Italy Univ Naples 2, Dipartimento Sci Ambientali, Caserta, Italy Univ Naples 2 Caserta Italy Dipartimento Sci Ambientali, Caserta, Italy Univ Naples 2, Dipartimento Sci Ambientali, Naples, Italy Univ Naples 2 Naples Italy , Dipartimento Sci Ambientali, Naples, Italy Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy Univ Turin TurinItaly rin, Dipartimento Fis Sperimentale, Turin, Italy Ist Nazl Fis Nucl, I-10125 Turin, Italy Ist Nazl Fis Nucl Turin Italy I-10125 azl Fis Nucl, I-10125 Turin, Italy Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Assergi, Italy Ist Nazl Fis Nucl Assergi Italy cl, Lab Nazl Gran Sasso, Assergi, Italy Osservatorio Astron Capodimonte, I-80131 Naples, Italy Osservatorio AstronCapodimonte Naples Italy I-80131 80131 Naples, Italy Osservatorio Astron Collurania, Teramo, Italy Osservatorio Astron Collurania Teramo Italy n Collurania, Teramo, Italy CALTECH, Pasadena, CA 91125 USA CALTECH Pasadena CA USA 91125CALTECH, Pasadena, CA 91125 USA
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL A
fascicolo: 4, volume: 10, anno: 2001,
pagine: 487 - 491
SICI:
1434-6001(200104)10:4<487:SPOLDI>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
VELOCITY PROPORTIONALITY; H2+ IONS; HYDROGEN; DISSOCIATION; HELIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Raiola, F Ruhr Univ Bochum, Inst Phys Ionenstrahlen, Univ Str 150, D-4630 Bochum, Germany Ruhr Univ Bochum Univ Str 150 Bochum Germany D-4630 um, Germany
Citazione:
F. Raiola et al., "Stopping power of low-energy deuterons in He-3 gas", EUR PHY J A, 10(4), 2001, pp. 487-491

Abstract

The stopping power of atomic and molecular deuterons in He-3 gas was measured over the range E-d = 10 to 100 keV using the He-3 pressure dependence of the He-3(d,p)He-4 reaction yield. At energies above 30 keV, the observed stopping power values are in good agreement with a standard compilation. However, near 18 keV the experimental values drop by a factor 50 below the extrapolated values of the compilation. In a simple model, the behavior is due to the minimum 1s --> 2s electron excitation of the He target atoms (= 19.8 eV, corresponding to E-d = 18.2 keV), i.e. it is a quantum effect, by which the atoms become nearly transparent for the ions.

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Documento generato il 01/04/20 alle ore 00:16:05