INTERACTION OF FAST HYDROGEN IONIC CLUSTERS WITH MATTER

M. CHEVALLIER, N.V. de CASTRO FARIA, B. FARIZON-MAZUY, M. J. GAILLARD, J. C. POIZAT, J. REMILLIEUX
1989 Le Journal de Physique Colloques  
R6urn6 -Les agrhgats rapides d'hydrogine H ' n'interagissent pas a v e c 1a mati&re d e 1a m@me m a n i i r e que des protons d e m@me v i t e s e . Nous prksentons les r i s u l t a t s obtenus i Lyon concernant I'interaction d'agrhgats Ibgers dlhydrog≠ (5 2 n _< 23) a v e c une cible gazeuse ou une feuille mince, des vitesses voisines d e la vitesse d e Bohr (dynamique d e la fragmentation, &tat d e charge des fragments Cmergents, section e f f i c a c e d e dissociation dans un gaz). Nous
more » ... cutons aussi d'expkriences futures et e n particulier plus haute knergie. Abbtm.19 -Fast ionic clusters H+ i n t e r a c t with m a t t e r in a specific way which is observed t o n deviate strongly from t h e interaction of a t o m i c ions at t h e s a m e velocity. We present s o m e results obtained a t Lyon about foil and gas interactions of hydrogen clusters (5 <_ n 2 23) a t projectile velocities close t o t h e Bohr velocity, i.e. dynamics of t h e cluster fragmentation, charge state of a t o m i c fragments and absolute dissociation cross sections in gas. We also discuss f u t u r e experiments specially at higher velocities. Recent advances in experimental techniques allow to produce a t o m clusters of various sizes and compositions. This has c r e a t e d a new a r e a of research since clusters c a n be regarded a s large molecules o r a s fragments of condensed matter. The acceleration of clusters s t a r t e d when Henkes /l/
doi:10.1051/jphyscol:1989232 fatcat:cbpxbbd7xjdl3cpcn6pkojutt4