Routine neutron monitoring in the Federal Republic of Germany using a two-component albedo dosemeter system

Energy dependence prevented a large scale routine application of albedo dosemeters in the past. This has been overcome by using location and facility dependent calibration factors. In the stray neutron fields of interest a large-scale routine monitoring has been recently realized with a two-component albedo dosemeter by classifying the variety of neutron fields in four types of applied without the need of knowing more details about the local situation such as the neutron energy spectrum, the shielding and the distance to the source. The calibration factors which may significantly vary with neutron energy in the four areas of application are transferable to other types of TLD systems using the two-component dosemeter capsule. In routine monitoring therefore is in general no need to perform field calibrations at the actual neutron facility of interest