I have been using water to scatter light for measuring IRF of my TCSPC setup. I have also try to use paper. But when I was searching online, I saw that people generally use colloidal silica/ ludox solution to scatter light to measure IRF. Is there any particular reason behind that?
Also with our TCSPC setup, we did not buy any data analysis software. Can data analysis be done using standard statistical tool like Origin or should we buy a software package? If yes, then which one?
I am using a Becker and Hickl Tau 130 TCSPC setup.