a2display

Detector Display Histograms for A2

Installation

  git clone https://github.com/osteffen/a2display.git
  cd a2display
  mkdir build
  cd build
  cmake ..
  make

How to use

This creates a ''liba2display.so''. This file can be loaded in a ROOT session:

  gSystem->Load("liba2display.so");

After that the two histogram classes TH2CB and TH2TAPS are available. Every crystal can be accessed via SetElement() or GetElement() by the element number. The numbering is identical to what AcquROOT uses in current config files. A full set of crystal values can be set at once by providing a std::vector<Double_t> or a TH1. This allows creating 2D representations of crystal hit distributions directly from 1D histograms as used by AcquROOT.

In addition, there are the wrapper classes that pull data from existing TH1 histograms automatically by name: PollingHistogram<TH2CB> and PollingHistogram<TH2TAPS>. Specify a name of a TH1 in the constructor and the data will be copied over periodically in the background. This can directly be used in any AcquROOT/AcquDAQ session without interfering. For example, attaching a PollingHistogram<TH2CB> to the NaIHits histogram in an AcquDAQ session will show you the accumulated distribution of hits in the current run.

The Event Statusbar of the ROOT canvas shows useful information about the crystal the mouse pointer points to. For Crystal Ball the Element Number as well as the Major/Minor/Crystal numbers are shown, which can be useful for debugging. Make sure to turn on the Event Statusbar by clicking View -> Event Statusbar.

The examples folder contains simple root macros that demonstrate how it works.