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- roi_fitting_using_the_flim_script @howto
- e last and smaller ROI contains considerably less photons. Ideally, decays selected for ROI fitting should contain ~10000 – 50000 photons in the peak. * As the decay contains much less photons than the other ROIs, we add other regions to the... The decay corresponding to ROI 2 contains now the photons from all marked dots. **Note:**\\ To review the... d average lifetime, which - neglecting background photons – roughly corresponds to the Fast Lifetime). {{
- flim_fret_calculation_for_multi_exponential_donors @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... s randomly spread over the TCSPC window, the mean photon arrival time of the dark background is usually ve... escence Lifetime Histogram. Here the frequency of photon counts corresponding to the individual mean lifet
- software
- from picoquant from T3 mode to T2 mode]] * **Photon-Tools** Python utilities for working with photon timestamp data from fluorescence spectroscopy experiments [[https://github.com/bgamari/photon-tools]] * **Photon Correlation** A suite of command-line tools for performing calculations on photon arrival data, as produced by hardware such as the
- lifetime_fitting_using_the_flim_analysis @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... s randomly spread over the TCSPC window, the mean photon arrival time of the dark background is usually ve... escence Lifetime Histogram. Here the frequency of photon counts corresponding to the individual mean lifet
- lifetime-fitting_using_the_rapid_reconvolution_algorithm @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... s randomly spread over the TCSPC window, the mean photon arrival time of the dark background is usually ve... ence Lifetime Histogram**\\ Here the frequency of photon counts corresponding to the individual mean lifet
- pile-up_effect @glossary
- ===== The Pile-Up effect describes the effects of photons lost at high photon count rates due to the dead time of the TCSPC dev... onics 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... Considering the dead time we can detect only one photon after one laser shot. "Pile up" describes the effects of photons lost at hight photon count rates due to the dead... 0% of the excitation rate. This allows the single photon statistics: The probability of detecting more than one fluorescence photon per excitation pulse is negligible. * [[howto:
- differential_count_rate @glossary
- /Differential count rate// is the real, momentary photon density (probability of encountering a photon) during a time interval when a detected signal is... ing-rate dependence of the timing shift of single photon avalanche diodes by photon interval analysis, Rev. Sci. Instrum. **84**, 036
- lifetime-fitting_using_the_flim_script @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... s randomly spread over the TCSPC window, the mean photon arrival time of the dark background is usually ve... ence Lifetime Histogram**\\ Here the frequency of photon counts corresponding to the individual mean lifet
- antibunching_measurements @howto
- of the dip, they are however artifacts caused by photons emitted (after the detection of a genuine photon) by one of the SPADs, detected by the second SPAD... ting M., Wahl M., Erdmann R: //Recent advances in photon coincidence measurements for photon antibunching and full correlation analysis//. In:... nstituents in molecular complexes by fluorescence photon antibunching IEEE Journal of Selected Topics//. I... dynamics of protein collapse from single-molecule photon statistics//. In: //Proceedings of the National A
- visualizing_dynamics_using_the_multiframe-flim_script @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... s randomly spread over the TCSPC window, the mean photon arrival time of the dark background is usually ve... ence Lifetime Histogram**\\ Here the frequency of photon counts corresponding to the individual mean lifet
- t3-mode @glossary
- n a span of 16 ns. If the time difference between photon and the last sync event is larger, the photon event cannot be recorded. This is the same as in ... typ. 95 ns for PicoHarp) Since there is only one photon channel, only autocorrelations can be calculated
- visualizing_dynamics_with_the_multi_frame_flim_analysis @howto
- LIM" lifetime, i.e. the mean arrival times of the photons after the laser pulse. When not defined otherwis... ximum. As the mean arrival time of the background photons in the areas where no fluorescence is detected, ... read over the [[glossary:TCSPC]] window, the mean photon arrival time of the dark background is usually ve... escence Lifetime Histogram. Here the frequency of photon counts corresponding to the individual mean lifet
- symphotime_tips_and_tricks @howto
- eflim-1.png?300|}}</imgcaption> </WRAP> * Max. Photons (in the brightest pixel for the selected data ch... into account the pixel recording times) * Avg. Photons (in a pixel) * Avg. Countrate (calculated taki... . Counts === TCSPC === * Max. Counts (number of photons in the peak TCSPC-channel) You can also add add... unbinned image, which calculates the mean of the photon arrival times, you will notice that the lifetime
- advantages_and_disadvantages_of_two_photon_excitation_tpe @general
- ====== Advantages and disadvantages of two photon excitation (TPE) ====== *The main advantage of two photon excitation is a deeper penetration and less photo... *The absorption is much less compared to one photon excitation. This leads very often to high intensi... er: You will get just ten times less fluorescence photons. This leads to limitations for FCS and other sin
- video_tutorials
- an imaging technique in confocal microscopy, two-photon excitation microscopy, and multiphoton tomography. The lifetime of the fluorophore signa... his has the advantage of minimizing the effect of photon scattering in thick layers of sample ([[wp>Fluore