| Jahr | 2016 |
| Autor(en) | F. Schneider, K. Chrysalidis, H. Dorrer, Ch. E. Düllmann, K. Eberhardt, R. Haas, T. Kieck, C. Mokry, P. Naubereit, S. Schmidt, K. Wendt |
| Titel | Resonance ionization of holmium for ion implantation in microcalorimeters |
| KIP-Nummer | HD-KIP 16-132 |
| KIP-Gruppe(n) | ECHO |
| Dokumentart | Paper |
| Quelle | Nucl. Instrum. Meth. B 376, 388-392 (2016) |
| doi | 10.1016/j.nimb.2015.12.012 |
| Abstract (de) |
|
| Abstract (en) | The determination of the electron neutrino mass by calorimetric measurement of the 163Ho electron capture spectrum requires ultra-pure samples. Several collaborations, like ECHo or HOLMES, intend to employ microcalorimeters into which 163Ho is implanted as an ion beam. This makes a selective and additionally very efficient ion source for holmium mandatory. For this purpose, laser resonance ionization of stable holmium 165Ho was studied, using a three step excitation scheme driven by pulsed Ti:sapphire lasers. Five measurements with sample sizes of 1014 and 1015 atoms were performed for the efficiency investigation. In average, an excellent ionization efficiency of 32(5) % could be shown, demonstrating the suitability for ion beam implantation. |
