| Zugriffsnummer | 44774 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Measurements at laser materials processing machines: spectrum deconvolution including uncertainties ad model selection |
| Autor(in); Institution |
Behrens, Rolf; 6.3, Strahlenschutzdosimetrie, PTB-Braunschweig
Pullner, Björn; 6.3, Strahlenschutzdosimetrie, PTB-Braunschweig
Reginatto, Marcel; 6.4, Neutronenstrahlung, PTB-Braunschweig
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| Quelle/Jahr | Konferenzband SMSI 2020. Journal of Sensors and Sensor Systems: 10 (2020), 1, 13 - 18 |
| ISSN | 2194-8771 (PRINT) ; 2194-878X (ONLINE) |
| DOI | |
| URL | |
| Verlag | Göttingen: Copernicus |
| Konferenzangaben | Sensor and Measurement Science International Conference, SMSI 2020 (cancelled), Nürnberg, 22-25, June, 2020, Deutschland |
| Zusammenfassung | Laser materials processing of workpieces using ultrashort pulsed lasers can lead to unwanted X-ray emission. Their dose rate and spectral distribution have been precisely determined for the first time. The measurements were carried out using a thermoluminescence detector (TLD) based spectrometer in which 30 TLD planes are arranged one behind the other, interspace by absorbers of increasing atomic charge and thickness. The penetration depth of the radiation into the spectrometer depends on its energy, so that the energy-resolved spectrum of the radiation can be calculated from the TLD dose values by means of mathematical methods (Bayesian deconvolution). The evaluation process also takes into account both the uncertainties of all input quantities and the possibility of adopting different models for the spectrum for. This allowed the resulting spectra to be associated with their realistic uncertainty. For the first time such measurements ae traceable to the SI. The results not only provide manufacturers and users of ultrashort pulsed lasers with important information on the design of the machines with regard to radiation protection but were also included in the recently concluded legislative procedure in the field of radiation protection in Germany. |
| Kostenfreier Zugang | Open Access Gold |
| Themenbereich der Metrologie | Ionisierende Strahlung |