%0 Journal Article %1 a0109 %A Wurz, P. %A Schletti, R. %A Aellig, M. R. %D 1997 %J Surface Science %K astronomy ibex imported physics science space thesis %N 1 %P 56--66 %T Hydrogen and oxygen negative ion production by surface ionization using diamond surfaces %U http://www.sciencedirect.com/science/article/B6TVX-3YCDK8V-4D/2/46246b9e5e5efc5e6263577b00a8264f %V 373 %X In this paper we report on the first observation of the formation of negatively charged ions upon reflection from a diamond surface. Positive H2 and O2 ions are scattered at small angles of incidence from a polycrystalline diamond surface. Charge exchange is observed yielding neutral particles and negatively charged ions. The negative ion fractions in the reflected particle flux are 5.5% and 29% for hydrogen and oxygen, respectively. These high negative ion yields are maintained in a moderate vacuum environment (10-7 mbar) over weeks without further periodic reconditioning of the surface.

@article{a0109, abstract = {In this paper we report on the first observation of the formation of negatively charged ions upon reflection from a diamond surface. Positive H2 and O2 ions are scattered at small angles of incidence from a polycrystalline diamond surface. Charge exchange is observed yielding neutral particles and negatively charged ions. The negative ion fractions in the reflected particle flux are 5.5% and 29% for hydrogen and oxygen, respectively. These high negative ion yields are maintained in a moderate vacuum environment (10-7 mbar) over weeks without further periodic reconditioning of the surface.}, added-at = {2007-07-24T20:55:41.000+0200}, author = {Wurz, P. and Schletti, R. and Aellig, M. R.}, biburl = {https://www.bibsonomy.org/bibtex/2397833599068690797027bbe25cd4111/essential.beatfinger}, description = {ScienceDirect - Surface Science : Hydrogen and oxygen negative ion production by surface ionization using diamond surfaces}, interhash = {ab43146d0bbc892fb8f41b6bc27667a7}, intrahash = {397833599068690797027bbe25cd4111}, journal = {Surface Science}, keywords = {astronomy ibex imported physics science space thesis}, month = {#feb#}, number = 1, pages = {56--66}, timestamp = {2007-07-24T20:55:41.000+0200}, title = {Hydrogen and oxygen negative ion production by surface ionization using diamond surfaces}, url = {http://www.sciencedirect.com/science/article/B6TVX-3YCDK8V-4D/2/46246b9e5e5efc5e6263577b00a8264f}, volume = 373, year = 1997 }