caa a22 4500 397502893 CHVBK 20180308164537.0 cr unu---uuuuu 161202e19950801xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082774 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082774 Active Neutron Spectrometry with Superheated Drop (Bubble) Detectors [Elektronische Daten] [F. d'Errico, W.G. Alberts, G. Curzio, S. Guldbakke, H. Kluge, M. Matzke] A new approach to neutron spectrometry has been developed in a joint project by DCMN Pisa and PTB Braunschweig. The system relies on the use of superheated drop (bubble) detectors and the thermodynamic control of their detection thresholds. This is the result of investigations into the physics of these detectors combined with extensive experimental work on their response to neutrons. These studies indicate that the higher the degree of superheat of a detector, the lower the minimum energy that secondary charged particles, and therefore primary neutrons, must impart to the droplets in order to nucleate their evaporation. Therefore, by controlling the temperature of the detectors, accurately defined detection thresholds, virtually and desired ones, can be generated in the 0.01-10 MeV neutron energy range. An active prototype instrument has been developed: bubbles are counted acoustically and temperature regulation is achieved by means of thin heating strips. Tests with reference neutron spectra show that the system is suitable for few-channel spectrometry and may be useful for radiation protection dosimetry. Appropriate unfolding algorithms are currently investigated, to be ultimately implemented in an automatic device. Radiation Protection Dosimetry d'Errico F. aut Alberts W.G. aut Curzio G. aut Guldbakke S. aut Kluge H. aut Matzke M. aut Radiation Protection Dosimetry Oxford University Press 61/1-3(1995-08-01), 159-162 0144-8420 61:1-3<159 1995 61 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082774 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082774 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- d'Errico F. aut NATIONALLICENCE 700 1- Alberts W.G. aut NATIONALLICENCE 700 1- Curzio G. aut NATIONALLICENCE 700 1- Guldbakke S. aut NATIONALLICENCE 700 1- Kluge H. aut NATIONALLICENCE 700 1- Matzke M. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 61/1-3(1995-08-01), 159-162 0144-8420 61:1-3<159 1995 61 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford