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| Content Provider | Springer Nature Link |
|---|---|
| Author | Velásquez, A. A. Arroyave, M. |
| Copyright Year | 2013 |
| Abstract | We report the assembly and testing of a preamplification and amplification system for pulses produced by gaseous radiation detectors commonly used in Mössbauer spectroscopy. The system is composed by a pair of commercial integrated circuits A203 and A206, which operate as charge sensitive preamplifier-shaping amplifier and linear amplifier-low level discriminator, respectively. The integrated circuits were interconnected in the unipolar output mode and placed inside a metallic shielding, which prevents noise amplification for a suitable signal-noise ratio. The system was tested by irradiating a proportional counter LND-45431 with characteristic X rays of 6.3 keV and gamma rays of 14.4 keV emitted by a Mössbauer radioactive source of 57Co (Rh). Unipolar pulses with Gaussian profile were obtained at the output of the linear amplifier, whose amplitudes were close to 0.4 V for 6.3 keV X rays and 1.4 V for 14.4 keV gamma rays. Pulse height spectra showed that the system allows a satisfactory identification of the X-rays and gamma rays emitted by the 57Co source, giving the possibility to make a good selection of the 14.4 keV peak for having a suitable signal-noise ratio in the Mössbauer spectra. Absorption percentages of 14 % were found by taking the Mössbauer spectra of a natural iron absorber. The assembly and tests of the system are presented through this paper. |
| Starting Page | 65 |
| Ending Page | 72 |
| Page Count | 8 |
| File Format | |
| ISSN | 03043843 |
| Journal | Hyperfine Interactions |
| Volume Number | 224 |
| Issue Number | 1-3 |
| e-ISSN | 15729540 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2013-02-12 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Mössbauer spectroscopy Preamplifier and amplifier system Radiation detectors Nuclear Physics, Heavy Ions, Hadrons Atomic, Molecular, Optical and Plasma Physics Condensed Matter Physics Surfaces and Interfaces, Thin Films |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics |
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