Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited
Differences in the odd to even response for tin isotopes has been observed earlier in resonance ionization experiments, resulting in anomalous odd to even isotope ratios. I have used a theoretical approach known as the spectral simulation approach to understand the cause for such anomaly and the ano...
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2011-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2011/473910 |
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| author | Manda Sankari |
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| author_sort | Manda Sankari |
| collection | DOAJ |
| description | Differences in the odd to even response for tin isotopes has been observed earlier in resonance ionization experiments, resulting in anomalous odd to even isotope ratios. I have used a theoretical approach known as the spectral simulation approach to understand the cause for such anomaly and the anomaly has also been experimentally verified and found to be in good agreement. The effects of laser parameters such as intensity, accuracy of the excitation laser wavelength and bandwidth on the determination of the tin isotope ratio have been analyzed theoretically and experimentally. The source for such anomalies was found to be the inaccuracy in the excitation laser wavelength. For the 5p2 (3P0) − 5p 6s (3P01) (286.3317 nm) transition, an inaccuracy of the order of 𝛾𝐿 in the peak frequency of the excitation laser (𝛾𝐿=15 GHz) can cause anomalies as large as ∼31% (𝛽=0.31). Use of a very large bandwidth laser (∼60 GHz) reduces the anomaly to as small as −0.003. Alternatively by employing a relatively narrow band laser (∼1.2 GHz), it has been observed that inaccuracy of the order of 3-4 𝛾𝐿 in the laser peak frequency does not induce anomalies >0.05. The isotope ratio is sensitive to the inaccuracy in the excitation laser wavelength for an intermediate linewidth laser. |
| format | Article |
| id | doaj-art-35a1a41991c04d1a8e121747bf6e4725 |
| institution | Kabale University |
| issn | 1687-9384 1687-9392 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
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| series | International Journal of Optics |
| spelling | doaj-art-35a1a41991c04d1a8e121747bf6e47252025-02-03T01:07:13ZengWileyInternational Journal of Optics1687-93841687-93922011-01-01201110.1155/2011/473910473910Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: RevisitedManda Sankari0National Centre for Compositional Characterisation of Materials, Bhabha Atomic Research Centre, Hyderabad 500 062, IndiaDifferences in the odd to even response for tin isotopes has been observed earlier in resonance ionization experiments, resulting in anomalous odd to even isotope ratios. I have used a theoretical approach known as the spectral simulation approach to understand the cause for such anomaly and the anomaly has also been experimentally verified and found to be in good agreement. The effects of laser parameters such as intensity, accuracy of the excitation laser wavelength and bandwidth on the determination of the tin isotope ratio have been analyzed theoretically and experimentally. The source for such anomalies was found to be the inaccuracy in the excitation laser wavelength. For the 5p2 (3P0) − 5p 6s (3P01) (286.3317 nm) transition, an inaccuracy of the order of 𝛾𝐿 in the peak frequency of the excitation laser (𝛾𝐿=15 GHz) can cause anomalies as large as ∼31% (𝛽=0.31). Use of a very large bandwidth laser (∼60 GHz) reduces the anomaly to as small as −0.003. Alternatively by employing a relatively narrow band laser (∼1.2 GHz), it has been observed that inaccuracy of the order of 3-4 𝛾𝐿 in the laser peak frequency does not induce anomalies >0.05. The isotope ratio is sensitive to the inaccuracy in the excitation laser wavelength for an intermediate linewidth laser.http://dx.doi.org/10.1155/2011/473910 |
| spellingShingle | Manda Sankari Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited International Journal of Optics |
| title | Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited |
| title_full | Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited |
| title_fullStr | Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited |
| title_full_unstemmed | Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited |
| title_short | Theoretical and Experimental Understanding of the Anomalous Odd-to-Even Isotope Ratios of Tin in a 1 + 1 Single-Colour Resonance Ionization Mass Spectrometry: Revisited |
| title_sort | theoretical and experimental understanding of the anomalous odd to even isotope ratios of tin in a 1 1 single colour resonance ionization mass spectrometry revisited |
| url | http://dx.doi.org/10.1155/2011/473910 |
| work_keys_str_mv | AT mandasankari theoreticalandexperimentalunderstandingoftheanomalousoddtoevenisotoperatiosoftinina11singlecolourresonanceionizationmassspectrometryrevisited |