Electrostatic ion beam trap for electron collision studies

We describe a system combining an ion beam trap and a low energy electron target in which the interaction between electrons and vibrationally cold molecular ions and clusters can be studied. The entire system uses only electrostatic fields for both trapping and focusing, thus being able to store particles without a mass limit. Preliminary results for the electron impact neutralization of C2− ions and aluminum clusters are presented.

[1]  G. Fraser The ion detection efficiency of microchannel plates (MCPs) , 2002 .

[2]  D. J. Pegg,et al.  Electron-impact detachment and dissociation of C4− ions , 2001 .

[3]  M. Larsson Merged-beams studies of electron-molecular ion interactions in ion storage rings , 2001 .

[4]  J. Jureta,et al.  Electron impact dissociation and ionization of N-2(+) , 2001 .

[5]  M. Rappaport,et al.  Electrostatic bottle for long-time storage of fast ion beams , 1997 .

[6]  P. Hvelplund,et al.  Electron detachment and fragmentation in collisions between 50 keV Cn−(1 ≤ n ≤ 86) clusters and H2 , 1997 .

[7]  G. Andler,et al.  CRYRING — a synchrotron, cooler and storage ring , 1993 .

[8]  L. H. Andersen,et al.  Doubly Charged Negative Ions of B2 and C2 , 1998 .

[9]  R. Forrest,et al.  Measurements of cross sections for detachment of electrons from C- and O- ions by electron impact , 1979 .

[10]  M. Rappaport,et al.  Diffusion and synchronization in an ion-trap resonator , 2002 .

[11]  William B. Herrmannsfeldt,et al.  ELECTRON TRAJECTORY PROGRAM , 1979 .

[12]  R. Stokstad,et al.  First experiments with the heidelberg test storage ring TSR , 1989 .

[13]  K. Noda,et al.  An electrostatic storage ring for atomic and molecular science , 2002 .

[14]  M. Knoll,et al.  Werkstoffkunde der Hochvakuumtechnik , 1959 .

[15]  Mathur,et al.  Electron-impact detachment from negative ions. , 1996, Physical review. A, Atomic, molecular, and optical physics.

[16]  Rolf Schuhmann,et al.  MAFIA Version 4 , 1997 .

[17]  S. Nielsen,et al.  Electron scattering on stored mononucleotide anions , 2004 .

[18]  M. Bowers Gas phase ion chemistry , 1979 .

[19]  K. Noda,et al.  Resonant neutral-particle emission in collisions of electrons with peptide ions in a storage ring. , 2003, Physical review letters.

[20]  Peter T. Kirstein,et al.  Space-Charge Flow , 1968 .

[21]  S. Møller ELISA, and electrostatic storage ring for atomic physics , 1997 .

[22]  B. Peart,et al.  Collisions between electrons and ions , 1976 .

[23]  M. Rappaport,et al.  Stability and loss in an ion-trap resonator , 2002 .

[24]  Huber,et al.  Electron-impact induced fragmentation of fullerene ions , 2000, Physical review letters.

[25]  M. Rappaport,et al.  A new type of electrostatic ion trap for storage of fast ion beams , 1998 .

[26]  L. H. Andersen,et al.  LETTER TO THE EDITOR: Resonance structure in the electron-impact detachment cross section of ? caused by the formation of ? , 1996 .

[27]  L. Marton,et al.  Methods of Experimental Physics , 1960 .

[28]  John Robinson Pierce,et al.  Theory and Design of Electron Beams , 1954 .

[29]  P. Tonge,et al.  Vibrationally resolved photoabsorption spectroscopy of red fluorescent protein chromophore anions. , 2003, Physical review letters.

[30]  L. H. Andersen,et al.  ELECTRON COLLISIONS WITH DIATOMIC ANIONS , 1999 .

[31]  A. Diner,et al.  Size-dependent electron-impact detachment of internally cold Cn- and Aln- clusters. , 2004, Physical review letters.