Neutron detector in the IAC



Neutron detector is installed in the IAC supported by the the appropriate DAQ system for the purpose of the charge and the time of flight of the neutrons. The detector is described in  the detector construction section.

The detector's location in the main beam lab, a wooden box is used to contain the GEM neutron detector, In addition to a plastic scintillator took a position in a way that it detect all the other particles that are hitting the GEM's chamber such as photons, electrons.

The detection method is dependent on determining the all the particles that are detected by the two detectors simultaneously and exclude them from what is detected by the GEM detector considering the remaining particles are neutrons.

Experiment Details and Setup

The Experiment sets on preparing the detector to have a position in the 44 MeV beam room, then the electronics' setup for the DAQ.

A position in the 44 MeV beam room
The detector took place in a wall in the room in a wooden box. The detector position in the 44 MeV room was on the south wall (detector's window faces the north wall), it has a distance of 70cm to the right of the electron beam. The detector is in wooden box, and has a plastic scintillator which is placed in front of the kipton window of the detector.

Changes in GEM detector's Amplitude
The main reason for the change in GEM detector's amplitude is the Beam alignment. According to the user the beam has to be focus for optics experiment, flags are used in more than one place in beam track to determine the beam's cross sectional area and its position. They are many flags placed on the electron beam track, which makes it hard to determine the source of the neutrons that are detected by the GEM detector.

Electronics Setup for ADC and TDC devices
The figure below shows the electronic setup that was used for the experiment.

Data run table
Data run table