Technological advancements are strongly required to fulfill the demands of new accelerator devices with the highest accelerating gradients and operation reliability for the future colliders. To this purpose an extensive R&D regarding molybdenum coatings on copper is in progress. In this contribution we describe chemical composition, deposition quality and resistivity properties of different molybdenum coatings obtained via sputtering. The deposited films are thick metallic disorder layers with different resistivity values above and below the molibdenum dioxide reference value. Chemical and electrical properties of these sputtered coatings have been characterized by Rutherford backscattering, XANES and photoemission spectroscopy. We will also consider multiple cells standing wave section coated by a molybdenum layer designed to improve the performance of X-Band accelerating systems.
Molybdenum sputtering film characterization for high gradient accelerating structures / S., Bini; B., Spataro; A., Marcelli; Sarti, Stefano; V. A., Dolgashev; S., Tantawi; A. D., Yeremian; Y., Higashi; M. G., Grimaldi; L., Romano; F., Ruffino; R., Parodi; G., Cibin; C., Marrelli; Migliorati, Mauro; C., Caliendo. - In: CHINESE PHYSICS C. - ISSN 1674-1137. - 37:9(2013), pp. 097005-097005-7. [10.1088/1674-1137/37/9/097005]
Molybdenum sputtering film characterization for high gradient accelerating structures
SARTI, Stefano;MIGLIORATI, Mauro;
2013
Abstract
Technological advancements are strongly required to fulfill the demands of new accelerator devices with the highest accelerating gradients and operation reliability for the future colliders. To this purpose an extensive R&D regarding molybdenum coatings on copper is in progress. In this contribution we describe chemical composition, deposition quality and resistivity properties of different molybdenum coatings obtained via sputtering. The deposited films are thick metallic disorder layers with different resistivity values above and below the molibdenum dioxide reference value. Chemical and electrical properties of these sputtered coatings have been characterized by Rutherford backscattering, XANES and photoemission spectroscopy. We will also consider multiple cells standing wave section coated by a molybdenum layer designed to improve the performance of X-Band accelerating systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
