1.
Rev Sci Instrum
; 82(1): 013302, 2011 Jan.
Artigo
em Inglês
| MEDLINE
| ID: mdl-21280820
RESUMO
This paper presents nondestructive dark current measurements of tera electron volt energy superconducting linear accelerator cavities. The measurements were carried out in an extremely noisy accelerator environment using a low temperature dc superconducting quantum interference device based cryogenic current comparator. The overall current sensitivity under these rough conditions was measured to be 0.2 nA/Hz(1/2), which enables the detection of dark currents of 5 nA.