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Record Details

Record 20 of 70968
Comparing Transition-Edge Sensor Response Times in a Modified Contact Scheme with Different Support Beams
External Online Source: hdl:2014/44417
Author and Affiliation:
Beyer, A. D.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Kenyon, M. E.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bumble, B.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Runyan, M. C.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Echternach, P. E.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Holmes, W. A.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bock, J. J.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bradford, C. M.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Abstract: We present measurements of the thermal conductance, G, and effective time constants, tau, of three transition-edge sensors (TESs) populated in arrays operated from 80-87mK with T(sub C) approximately 120mK. Our TES arrays include several variations of thermal architecture enabling determination of the architecture that demonstrates the minimum noise equivalent power (NEP), the lowest tau and the trade-offs among designs. The three TESs we report here have identical Mo/Cu bilayer thermistors and wiring structures, while the thermal architectures are: 1) a TES with straight support beams of 1mm length, 2) a TES with meander support beams of total length 2mm and with 2 phononfilter blocks per beam, and 3) a TES with meander support beams of total length 2mm and with 6 phonon-filter blocks per beam. Our wiring scheme aims to lower the thermistor normal state resistance R(sub N) and increase the sharpness of the transition alpha=dlogR/dlogT at the transition temperature T(sub C). We find an upper limit of given by (25+/-10), and G values of 200fW/K for 1), 15fW/K for 2), and 10fW/K for 3). The value of alpha can be improved by slightly increasing the length of our thermistors.
Publication Date: Jun 24, 2013
Document ID:
20150008050
(Acquired May 19, 2015)
Subject Category: ELECTRONICS AND ELECTRICAL ENGINEERING
Document Type: Conference Paper
Meeting Information: International Workshop on Low Temperature Detectors; 15th; 24-29 Jun. 2013; Pasadena, CA; United States
Meeting Sponsor: California Inst. of Tech.; Pasadena, CA, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: THERMAL CONDUCTIVITY; TIME CONSTANT; OPTICAL TRANSITION; TRANSITION TEMPERATURE; SPECTROGRAPHS; ARRAYS; SUBSTRATES; TIME RESPONSE; SUPPORTS; THERMISTORS; PHONON BEAMS
Other Descriptors: INFRARED; SPACEBORNE; BACKGROUND LIMITED INFRARED/SUB-MM SPECTROGRAPH (BLISS); SAFARI INSTRUMENT
Availability Source: Other Sources
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