Abstract
Neutron dose rate monitoring at neutron energies of several hundreds of MeV requires special instrumentation. Berthold Technologies has developed a new version of the widely used LB 6411neutron dose rate monitor for high energies, the LB 6411-Pb. A prototype was calibrated at the CERF at CERN in Geneva/Switzerland with neutron energies ranging up to 1 GeV. For comparison simultaneous measurements were made with a conventional LB 6411. The conventional neutron dose rate meter shows an underestimation, reporting only 68.9% of the reference dose. However, the results of the new version LB 6411-Pb with an additional lead layer of 10 mm thickness agree with the reference values by 98.8%. This shows that the new version is a promising candidate for neutron dose rate monitoring at high-energy accelerators.
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