Noise measurements in a 2-hole radio frequency SQUID at liquid nitrogen temperature

Noise measurements in a 2-hole radio frequency SQUID at liquid nitrogen temperature

The authors report measurements of the noise in a two-hole RF SQUID (superconducting quantum interference device) fabricated from bulk YBCO by an erosion technique in the frequency range 30 mHz to 1 kHz. Above 100 Hz the noise is essentially white with an RMS (root mean square) value of 5*10/sup -4/...

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Veröffentlicht in:IEEE transactions on magnetics 1989-03, Vol.25 (2), p.876-877
Hauptverfasser: Harrop, S.P., Colclough, M.S., Gough, C.E., Keene, M.N., Muirhead, C.M.
Format: Artikel
Sprache:eng
Schlagworte:
Frequency measurement
Noise measurement
Radio frequency
Radiofrequency interference
Root mean square
SQUIDs
Superconducting device noise
Superconducting devices
White noise
Yttrium barium copper oxide
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Zusammenfassung:The authors report measurements of the noise in a two-hole RF SQUID (superconducting quantum interference device) fabricated from bulk YBCO by an erosion technique in the frequency range 30 mHz to 1 kHz. Above 100 Hz the noise is essentially white with an RMS (root mean square) value of 5*10/sup -4/ phi /sub 0// square root Hz and is dominated by noise from the electronics. Below 10-Hz the noise power rises as 1/f/sup 0/9/.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.92425