| Title | A HIGH-SENSITIVITY MOMENTUM DISPERSIVE MULTICHANNEL ELECTRON MOMENTUM SPECTROMETER FOR STUDIES IN EXPERIMENTAL QUANTUM-CHEMISTRY |
| Publication Type | Journal Article |
| Year of Publication | 1994 |
| Authors | Todd, BR, Lermer, N, Brion, CE |
| Journal | REVIEW OF SCIENTIFIC INSTRUMENTS |
| Volume | 65 |
| Pagination | 349-358 |
| Date Published | FEB |
| ISSN | 0034-6748 |
| Abstract | The design and characterization of a high sensitivity multichannel momentum dispersive electron momentum spectrometer is reported. Electron pair coincidences are detected over a +/- 30 degrees range of azimuthal angle at the exit slit of a cylindrical mirror analyzer configured to measure symmetric (theta = 45 degrees) noncoplanar (e,2e) scattering. A position sensitive microchannel plate/resistive anode encoder electron detector and a channeltron electron multiplier are employed in a novel multichannel coincidence detection system based upon detection of `'pile-up'' of pairs of timing pulses from the detectors. Proof-of-concept results, exhibiting significantly higher coincidence count rates and statistical precision than have been previously observed in electron momentum spectroscopy, are presented for argon. |
| DOI | 10.1063/1.1145195 |
