Root scripts

Collection of useful sscripts for working with nuclear spectroscopy data using ROOT, the analysis frame work developed at cern (http:://root.cern). Please feel free to use these as they are, or to modify and ibase your own scripts on.

All scripts have been written for root6, but will probably also work with the old root5 verison which is still used in some places. Load them in the root prompt using .L <script_name.cpp>++. The ++ will compile the script, so you can check that it will work on your installation of root. You can then use the provided functions in the root terminal (including tab completion).

Author: M. Rudigier

Find time shift values for a large number of histograms:

FindTimeShift.cpp

Initial calibrations of every fast timing experiment involves time alignment. With large detector arrays this can become very tideous, so this script provides a couple of ways to determine these shifts automatically.

Convert root histograms

into other formats for use with programmes like tv, radware, or for plotting with gnuplot:

root2tv.cpp

Convert TH1 to human readable ascii

TH_to_bin.cpp

Convert TH1 or TH2 to binary (e.g. for use with tv or radware)

Delayed coincidence time spectrum analysis:

fitconv.cpp

Fit a Gauss-ExpDecay convolution function to a time spectrum to extract tau.

Slope_with_stat_sample_method.cpp

Use a statistical sampling method to extract the mean lifetime from a time spectrum.