| Zugriffsnummer | 11568 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Improvement of response of CR-39 nuclear track detectors in fast neutron dosimetry |
| Autor(in); Institution |
Brede, Hein Jürgen; 6.31, Ionendosimetrie und Beschleunigerbetrieb, PTB-Braunschweig
Gisbertz, A.; Physikalisches Institut der Justus-Liebig-Universität, Gießen, GERMANY
Köhler, I.; Physikalisches Institut der Justus-Liebig-Universität, Gießen, GERMANY
Pitt, E.; Physikalisches Institut der Justus-Liebig-Universität, Gießen, GERMANY
Scharmann, A.; Physikalisches Institut der Justus-Liebig-Universität, Gießen, GERMANY
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| Quelle/Jahr | Radiation Protection Dosimetry: 85 (1999), 1, 113 - 116 |
| ISSN | 0144-8420 |
| Freie Schlagworte | CR 39-dosimetry ; personal dosimetry |
| Zusammenfassung | CR-39 in combination with (n,p) radiators is used in routine fast neutron dosimetry. This material is highly sensitive to charged particles. Its application is restricted due to a high lower limit of detection caused by the large scattering from the background even from badge to badge of a single manufacturer. For its improvement it is necessary to investigate the etch process in detail. CR-39 was chemically and electrochemically etched in NaOH. The response to protons as the track generating particles in neutron dosimetry was measured as a function of the angle of particle incidence in the energy range up to 7.5 MeV. Appropriate proton beams were produced by Rutherford backscattering of accelerator particles. By means of a special evaluation technique the influence of stray particles was reduced. The curve of the critical angle of incidence for proton detection as a function of energy was determined experimentally. It can now serve as a basis for neutron response modelling. |
| Rechteinformation | 1999, Nuclear Technology Publishing |