| Autor: |
Pavel Kohout, Vít Procházka, Jiri Pechousek, Vlastimil Vrba, Lukas Kouril, Libor Machala, Petr Novak, Jakub Navarik |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 832:292-296 |
| ISSN: |
0168-9002 |
| DOI: |
10.1016/j.nima.2016.06.136 |
| Popis: |
This paper presents a conceptually new design of the 57 Fe Time Differential Mossbauer Spectrometer (TDMS) with the gamma-photon detector optimized for registration of a radiation emitted in a maximum solid angle. A high detection efficiency of 80% in 4π region was achieved for 122.06 keV photons emitted from 57 Co source. Detector parameters have been optimized for the use in the Time Differential Mossbauer Spectroscopy where the high time resolution in range of 176–200 ns is highly required. Technical concept of the TDMS is based on the virtual instrumentation technique and uses fast digital oscilloscope. Performance and detector utilization have been clarified by decreasing the Mossbauer spectral line-width of K 2 MgFe(CN) 6 reference sample from 0.33 mm/s (integral mode) to 0.23 mm/s (time differential mode). This report also describes characterization and utilization of the detector together with additional electronic blocks and two-channel fast data-acquisition system construction. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect