Abstract
We have developed an ultra-fast multi-hit TDC to improve the momentum resolution in the multiple coincidence momentum imaging spectroscopy. The TDC consists of 12 bit/100 MHz crystal oscillator counters and seven time-to-amplitude converters. The TDC receives signals up to 6 as start pulses and one signal as a stop signal. The time resolution of the TDC is about 120 ps under the time span of 40 μ s. Using the present TDC, we have obtained the vibrational-resolved core-level photoelectron momentum distribution of CO molecules in coincidence with two fragment ions.
Original language | English |
---|---|
Pages (from-to) | 255-257 |
Number of pages | 3 |
Journal | Journal of Electron Spectroscopy and Related Phenomena |
Volume | 144-147 |
DOIs | |
Publication status | Published - 2005 Jun |
Externally published | Yes |
Keywords
- CO
- Fast TDC
- Fixed-in-space molecule
- Multiple coincidence momentum imaging
- Photoelectron angular distribution
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry