SQUID Developments for the Gravitational Wave Antenna MiniGRAIL

We designed two different sensor SQUIDs for the readout of the resonant mass gravitational wave detector MiniGRAIL. Both designs have integrated input inductors in the order of 1.5 muH and are planned for operation in the mK temperature range. Cooling fins were added to the shunt resistors. The fabr...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2007-06, Vol.17 (2), p.764-767
Main Authors: Pleikies, J.., Usenko, O.., Kuit, K.H., Flokstra, J.., de Waard, A.., Frossati, G..
Format: Article
Language:English
Subjects:
Applied sciences
Coils
Cooling
Cooling fins
Detectors
Electrical engineering. Electrical power engineering
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Gravitational wave antenna
Gravitational wave antennas
Gravitational waves
Inductors
Magnetic devices
Noise
Resistors
Resonance
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Shunt (electrical)
SQUIDs
Superconducting devices
Superconducting quantum interference devices
Temperature distribution
Temperature sensors
Transformers and inductors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We designed two different sensor SQUIDs for the readout of the resonant mass gravitational wave detector MiniGRAIL. Both designs have integrated input inductors in the order of 1.5 muH and are planned for operation in the mK temperature range. Cooling fins were added to the shunt resistors. The fabricated SQUIDs show a behavior that differs from standard DC-SQUIDs. We were able to operate a design with a parallel configuration of washers at reasonable sensitivities. The flux noise saturated to a value of 0.84 muPhi 0 /radicHz below a temperature of 200 mK. The equivalent noise referred to the current through the input coil is 155 fA/radicHz and the energy resolution yields 62 h.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2007.898067