200
F(L)CS Data Acquisition
Figure 177:
Measurement Preview in SymPhoTime: Allocation of the FCS channels
Defaults can be saved using the
Set Defaults
button.
In addition to the count rate (cps), the count rate per molecule (cpm) is displayed in the
count rate monitor in LAS AF. It is calculated from the online correlation. Since FCS is based
on fluctuation analysis, it is normal for these values to fluctuate. The higher this value, the
better the signal/noise ratio of the correlation curve. That means this value should be
maximized (by selecting an appropriate fluorescent dye, a suitable laser intensity, a suitable
dye concentration, the correct setting for the objective's correction ring, etc.).
To prevent saturation effects, select the laser intensity with which you can reach
approximately two-thirds of the maximum count rate per molecule. If you then observe
photobleaching or an excessively high triplet fraction, continue to reduce the laser intensity.
18.3.7
Loading and Saving FCS-specific Instrument Parameter Settings
FCS-specific instrument parameter settings (IPS) are organized in a different way than
image acquisition settings. Therefore, they are managed separately from the image
acquisition settings. On the one hand, this means that FCS instrument parameter settings
can be loaded and saved only in the
Setup FCS
step; they are not available anywhere else
(
). On the other hand, it means that image acquisition settings are not available in
the
Setup FCS
step. They must be loaded and saved in the
Setup Imaging
step or outside of
the FCS Wizard.
Summary of Contents for TCS SP8 SMD
Page 1: ...10 Living up to Life User Manual Leica TCS SP8 SMD for FCS FLIM and FLCS ...
Page 4: ...4 Copyright ...
Page 14: ...14 Contents ...
Page 18: ...18 Intended Use ...
Page 20: ...20 Liability and Warranty ...
Page 28: ...28 General Safety Notes ...
Page 32: ...32 Additional Notes on Handling the System ...
Page 44: ...44 System Overview and Properties ...
Page 60: ...60 SMD Components Figure 31 DSN 102 Dual SPAD Power Supply ...
Page 80: ...80 Safety Features ...
Page 102: ...102 Switching On the System ...
Page 116: ...116 LAS AF ...
Page 214: ...214 Changing the Specimen ...
Page 216: ...216 Changing the Objective ...
Page 238: ...238 Switching Off the System ...
Page 242: ...242 Repairs and Service Work ...
Page 244: ...244 Maintenance ...
Page 246: ...246 Disassembly and Transport ...
Page 248: ...248 Disposal ...
Page 254: ...254 Contact ...
Page 256: ...256 Recommended Literature ...
Page 266: ...266 Appendix Figure 225 Declaration of conformity ...
Page 268: ...268 Appendix ...
Page 269: ......