Integration of Superconducting Electrical and Thermal Circuits for Microscale Cooling

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,950.00
Award Year:
2006
Program:
STTR
Phase:
Phase I
Contract:
NNG06LA44C
Agency Tracking Number:
050018
Solicitation Year:
2005
Solicitation Topic Code:
T4.02
Solicitation Number:
n/a
Small Business Information
Atlas Scientific
1367 Camino Robles Way, San Jose, CA, 95120-4925
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
938515913
Principal Investigator:
Ben Helvensteijn
Principal Investigator
() -
bhelvensteijn@atlasscientific.com
Business Contact:
Ali Kashani
Program Director
(408) 507-0906
akashani@atlasscientific.com
Research Institution:
San Francisco State University
Not R Available
1600 Holloway Avenue
San Francisco, CA, 94132
(415) 338-7091
Domestic nonprofit research organization
Abstract
Microcalorimetry is an enabling technology for many NASA space science missions because it permits detection of single photons at high rates with unprecedented energy resolution and efficiency. This remarkable technology relies upon superconducting devices that must be cooled below 100 mK. We propose to construct a doubly-integrated circuit in which critical features of microcalorimeter pixels on micromachined thermal isolation structures are cooled by microscale refrigerators that exhaust heat into the substrate at 300 mK. In Phase 1 we will demonstrate a new process for fabricating suspended thermal isolation membranes that is planar and fully photolithographic. A parallel Phase 1 activity will be to design a self-contained "omni-orientable" sorption refrigerator as a 300 mK heat sink that can be started and operated in any orientation in order to facilitate retrofitting microcalorimeters to existing materials analysis systems.

* information listed above is at the time of submission.

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