Industry meets Academia: Beam Monitoring Instrumentation and Quality Assurance

The Karlsruhe Tritium Neutrino Experiment uses a Windowless Gaseous Tritium source to measure the neutrino mass. This source provides a flux of electrons with an average energy of 4 keV towards retarding spectrometers of 10E11 electrons per second. The flux, which is guided adiabatically by magnetic fields, is uniformly spread over cross sections larger than 40 cm². We outline the cases, why it is desired to measure the intensity of this low energy beam as precise as possible without interference of the beam.