Method and appartatus for improved time-resolved fluorescence spectroscopy
US4855930A · kind A · utility
67Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Mar 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0697
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for time-resolved fluorescence spectroscopy is described in which laser light from a single pulse is used to excite fluorescent photons in a sample, which fluorescence is detected by a PMT optimized for linearity and response time to produce photoelectrons which generate a current at the PMT anode. This current is discharged through an R/C network to produce a voltage amplitude waveform which is converted to an optical image, intensified, stored and digitized. The digitized version of the optical image is processed in a data processor to calculate the true fluorescence impulse response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.