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pile-up_effect

8 Hits, Last modified: 10 years ago

ect 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 next photon to detect. The dead time for TCSPC devices used f

differential_count_rate

7 Hits, Last modified: 7 years ago

/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 p... flashes. These are short time intervals with huge photon density (rate), separated by long "dark", quiet p

t3-mode

7 Hits, Last modified: 10 years ago

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

3 Hits, Last modified: 10 years ago

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 t

dead_time

2 Hits, Last modified: 10 years ago

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.

hybrid_pmt

2 Hits, Last modified: 9 years ago

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

2 Hits, Last modified: 9 years ago

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

tcspc

2 Hits, Last modified: 11 years ago

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

bifl

1 Hits, Last modified: 10 years ago

**I**ntegrated **F**luorescence **L**ifetime: The photon events of a complete burst are accumulated into a

fast_flim

1 Hits, Last modified: 9 years ago

ast lifetime of each pixel represents the average photon arrival time with respect to the preceding laser

mcs

1 Hits, Last modified: 11 years ago

his term is used in the following context: Single photon events, as originating from a [[TTTR]] measuremen

poisson_distribution

1 Hits, Last modified: 11 years ago

astic nature of the measurement process (either a photon is detected or it is not) introduces noise, which

spad

1 Hits, Last modified: 8 years ago

above the breakdown voltage in reverse bias. One photon may trigger the avalanche process and generates a

t2-mode

1 Hits, Last modified: 10 years ago

] signal. Usually both inputs are used to connect photon detectors. The events from both channels are reco