ADVANCED DETECTORS FOR ACTIVE NEUTRON DOSIMETERS

Different options were investigated in the development of active neutr on dosemeters for personnel and area monitoring. In particular, two di fferent classes of detectors, superheated emulsions and silicon diodes , were studied as radiation sensors for such devices. The detectors we re analysed with respect to their neutron sensitivity and their overal l suitability for practical dosimetry. Superheated emulsions proved ad equate in terms of their dose equivalent response and their photon dis crimination: future work should now focus on the development of a rugg ed device. Significant improvements were also achieved with the diode sensors, although more research will be necessary for the design of a simple, single structure readily usable as a neutron dosemeter.