Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 285 - 289 |
| Number of pages | 5 |
| Journal | Superconductor Science and Technology |
| Volume | 17 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2004 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- SQUID
- washer
- transition edge sensor
- bipolar transistors
- superconducting transistors
Cite this
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Design and performance of multiloop and washer SQUIDs intended for sub-kelvin operation. / Kiviranta, Mikko (Corresponding Author); Penttilä, Jari S.; Grönberg, Leif; Hassel, Juha; Virtanen, Antti; Seppä, Heikki.
In: Superconductor Science and Technology, Vol. 17, No. 5, 2004, p. 285 - 289.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Design and performance of multiloop and washer SQUIDs intended for sub-kelvin operation
AU - Kiviranta, Mikko
AU - Penttilä, Jari S.
AU - Grönberg, Leif
AU - Hassel, Juha
AU - Virtanen, Antti
AU - Seppä, Heikki
PY - 2004
Y1 - 2004
N2 - We have developed a set of dc SQUIDs intended for frequency-domain multiplexed readout of transition edge sensor (TES) arrays. The first design is based on the Ketchen-style washer, and has exhibited a 1.2 × 10−7 Φ0 Hz1/2 flux noise both at 4.2 and 0.43 K. The second design is based on the multiloop structure and utilizes the spoke-terminating resistors which double as junction shunts in order to minimize the excess noise due to the resonance damping. The multiloop device has exhibited a 3.5 × 10−7 Φ0 Hz1/2 flux noise level at 4.2 K. The mutual inductances are chosen such that a typical ac-biased TES-based x-ray calorimeter would need only a moderate amount of negative feedback in order to handle the dynamic range of the signal.
AB - We have developed a set of dc SQUIDs intended for frequency-domain multiplexed readout of transition edge sensor (TES) arrays. The first design is based on the Ketchen-style washer, and has exhibited a 1.2 × 10−7 Φ0 Hz1/2 flux noise both at 4.2 and 0.43 K. The second design is based on the multiloop structure and utilizes the spoke-terminating resistors which double as junction shunts in order to minimize the excess noise due to the resonance damping. The multiloop device has exhibited a 3.5 × 10−7 Φ0 Hz1/2 flux noise level at 4.2 K. The mutual inductances are chosen such that a typical ac-biased TES-based x-ray calorimeter would need only a moderate amount of negative feedback in order to handle the dynamic range of the signal.
KW - SQUID
KW - washer
KW - transition edge sensor
KW - bipolar transistors
KW - superconducting transistors
U2 - 10.1088/0953-2048/17/5/038
DO - 10.1088/0953-2048/17/5/038
M3 - Article
VL - 17
SP - 285
EP - 289
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 5
ER -