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- pile-up_effect
- ===== The Pile-Up effect describes the effects of photons lost at high photon count rates due to the dead time of the TCSPC devices. Most single photon counting detectors and [[TCSPC]] electronics have a [[dead time]]. After registering one photon the device needs some time to be ready for the ne
- differential_count_rate
- /Differential count rate// is the real, momentary photon density (probability of encountering a photon) during a time interval when a detected signal is really pr... rential count rate if we are detecting rarely one photon (count) per excitation cycle, anyway? Detection probability of two or more photons in one cycle is completely negligible!//" Not r
- t3-mode
- cord them only if they arrive in the context of a photon event on channel 1. The event record is then com... - The start-stop timing difference between the photon event and the last sync event, and - the arriva... ssible to precisely determine which sync period a photon event belongs to. Since the sync period is also k... ore allows to reconstruct the arrival time of the photon with respect to the overall experiment time. T3
- tttr
- is measurement mode is to record every individual photon of a [[TCSPC]] experiment. Both the arrival time ... g external TTL pulses as markers in the stream of photon events TTTR mode is suitable for [[FLIM]] measurements. The markers are used to synchronise the photon events with a scanning process allowing to sort the photons into image pixels.
- dead_time
- e the TCSPC system is blind. If for example two photons are detected with the dead time of the TCSPC device the second photon will be lost. This leads to the so called [[gloss... y:Pile-up Effect]]. Note that not only TCSPC devices but also photon counting devices exhibit dead times.
- tcspc
- d **S**ingle **P**hoton **C**ounting: A stream of photons is recorded, each photon with respect to a (often periodical) signal, e.g. a repeated laser pulse. The single photon events are sorted into histogram channels that co
- hybrid_pmt
- led [[https://www.picoquant.com/products/category/photon-counting-detectors/pma-hybrid-series-hybrid-photo... PMA Hybrid]]. The PMA Hybrid is a compact single photon sensitive detector based on a fast hybrid photomu
- mcp
- MCP) A microchannel plate [[PMT]] is a sensitive photon detector. It consists of an array of glass capill... Ps is sufficiently small to perform time-resolved photon counting on a sub-nanosecond- scale, usually outp
- mcs
- his term is used in the following context: Single photon events, as originating from a [[TTTR]] measuremen... . In a subsequent analysis the binned ensemble of photons can be used to form [[TCSPC]] histograms, which
- poisson_distribution
- especially for [[TCSPC]]: The expected number of photons in any TCSPC channel is given by the 'real' deca... astic nature of the measurement process (either a photon is detected or it is not) introduces noise, which
- bifl
- **I**ntegrated **F**luorescence **L**ifetime: The photon events of a complete burst are accumulated into a
- fast_flim
- ast lifetime of each pixel represents the average photon arrival time with respect to the preceding laser
- marquardt-levenberg
- analysed by the SymPhoTime software the number of photons for a given decay may be very small, so the expe
- spad
- above the breakdown voltage in reverse bias. One photon may trigger the avalanche process and generates a
- t2-mode
- ] signal. Usually both inputs are used to connect photon detectors. The events from both channels are reco