Author: Janine Menne

based on Code of https://sourceforge.net/p/usbspecdrivers/code/ci/master/tree/Hamamatsu/python/HamamatsuMiniSpectrometer.py

This Software controls a Hamamatsu MiniSpectrometer connected to the PC via USB and controled with C++. It is used to do measurements with scintillating fibres or mats built from scintillating fibres. A current source operated via RS232 allows to pilot UV-LEDs to excite the fibre(s).

The repository contains the source code as well as CMakeLists and a GUI version to operate such system.

Availability of the following libraries (author: Janine Menne):

• LEDClass
• RSS232Communication

Driver of Hamamatsu Spectrometer: needs to be rebuilt everytime kernel is being updated

• https://sourceforge.net/p/usbspecdrivers/wiki/Installation/
• edit usbhspec.c such as (2 times):

//static DEVICE_ATTR(gain, S_IWUGO | S_IRUGO, show_gain, set_gain);
static DEVICE_ATTR(gain, 0660, show_gain, set_gain);

• make sure, that your user is in group plugdev

RS232 Currentsource:

• Make sure that your user is in group dialout

Install QT5:

• QT5 uses different number format
• add to your .bashrc:

export CMAKE_PREFIX_PATH=/usr/local/Qt-5.8.0/
export LC_NUMERIC=en_US.UTF-8

1.) Compile source code:

mkdir build
cd build
cmake ..
make

2.) Execute it:

./bin/SpectrometerMain

3.) Follow instructions written in terminal.

0.) Go to GUI folder

cd Spectrometer_gui

1.) Compile source code:

mkdir build
cd build
cmake ..
make

2.) Execute it:

./bin/SpectrometerGUI

3.) A window is opening to control the Spectrometer measurement.
It is possible to choose between various Measurement Modes

4.) Single Measurement:
Usually used to determine the current for a "real" meaurement

• Choose a Integration Time of the Spectrometer
• Choose the Number of Averages which per measurement will taken
• Select the Spectrometer Mode Single
• Choose a current for the LED
• Hit the Start Measurement button to start actually the measurement
• Afterwards the Plot button will be enabled to display the spectrum in the plot region

5.) Dark + 1 Light Measurement:
At each position take a darkcount and a light measurement with the given current.

• Choose the Spectrometer Measurement Mode Dark + 1 Light
• If wanted: Specify path and name for the saved file
  • if not specified it will be saved at ~/data/Spectrometer/TestSpectrum.txt
• Choose a current for the LED
• Hit the Start Measurement button to start actually the measurement

6.) Dark + 3 Light Measurement:
At each position take a darkcount and three light measurements with the given currents.

• Choose the Spectrometer Measurement Mode Dark + 1 Light
• If wanted: Specify path and name for the saved file
  • if not specified it will be saved at ~/data/Spectrometer/TestSpectrum.txt
• Choose a current for the LED
• Hit the Start Measurement button to start actually the measurement