| Title (english) | Dependence of MeV TOF SIMS secondary molecular ion yield from phthalocyanine blue on primary ion stopping power |
| Author | Marko Brajković Institut Ruđer Bošković Ruđer Bošković Institute |
| Author | Zdravko Siketić Institut Ruđer Bošković Ruđer Bošković Institute |
| Author | Ivančica Bogdanović-Radović Institut Ruđer Bošković Ruđer Bošković Institute |
| Author | Marko Barac Institut Ruđer Bošković Ruđer Bošković Institute |
| Scientific / art field, discipline and subdiscipline | NATURAL SCIENCES Physics Nuclear Physics |
| Abstract (english) | Time-of-flight Secondary Ion Mass Spectrometry (TOF SIMS) is a well-established mass spectrometry technique used for the chemical analysis of both organic and inorganic materials. In the last ten years, many advances have been made to improve the yield of secondary molecular ions, especially those desorbed from the surfaces of organic samples. For that, cluster ion beams with keV energies for the excitation were mostly used. Alternatively, single-ion beams with MeV energies can be applied, as done in the present work. It is well known that secondary molecular/ion yield depends strongly on the primary ion stopping power, but the nature of this dependence is not completely clear. Therefore, in the present work secondary ion yield from the phthalocyanine blue (C32H16CuN8, organic pigment) was measured for the various combinations of ion masses, energies and charge states. Measured values were compared with the existing models for ion sputtering. An increase of the secondary yield with the primary ion energy, electronic stopping, velocity and charge state was found for different types of primary ions. Although this general behavior is valid for all primary ions, there is no single parameter that can describe the measured results for all primary ions at once. |
| Keywords (english) | |
| Language | english |
| DOI | https://doi.org/10.5281/zenodo.5970586 |
| URN:NBN | urn:nbn:hr:241:471554 |
| Publication | 2021-06-28 |
| Project | Number: 824096 Title (english): Research And Development with Ion Beams – Advancing Technology in Europe-RADIATE |
| Project | Number: IP-2016-06-1698 Title (croatian): Razvoj kapilarne mikroprobe za MeV SIMS s primjenom na analizu bioloških materijala-BioCapSIMS Leader: Ivančica Bogdanović Radović |
| External related object | Is cited by: URL http://fulir.irb.hr/id/eprint/5828 |
| Publisher | Institut Ruđer Bošković Ruđer Bošković Institute |
| Access conditions | Open access |
| Terms of use |  |
| Created on | 2021-06-28 11:35:53 |
