CERN Accelerating science

Preprint
Report number	arXiv:1407.3220
Title	On superconducting niobium accelerating cavities fired under N2-gas exposure
Author(s)	Eichhorn, Ralf (Cornell U., CLASSE) ; Gonnella, Daniel (Cornell U., CLASSE) ; Hoffstaetter, Georg (Cornell U., CLASSE) ; Liepe, Matthias (Cornell U., CLASSE) ; Weingarten, Wolfgang (CERN)
Publication	2014
Imprint	11 Jul 2014
Number of pages	17
Subject category	physics.acc-ph ; Accelerators and Storage Rings
Abstract	The dependence of the Q-value on the RF field (Q-slope) is actively studied in various accelerator laboratories. Although remedies against this dependence have been found, the physical cause still remains obscure. A rather straightforward two-fluid model description of the Q-slope in the low and high field domains is presented with emphasis on the recently experimentally identified improvement of the Q-value by so-called "N-doping".
Other source	Inspire
Copyright/License	arXiv nonexclusive-distrib. 1.0