Dr. Daniel R. Ladner, Research and Development Scientist

Dr. Daniel R. Ladner received his PhD in Low Temperature Experimental Physics from Ohio State University in 1983. Dr. Ladner comes to Equinox Interscience with 29 years experience in cryogenics, superconductivity, fluid dynamics, and instrumentation/testing with 10 years in technical project management. Since 1994, he has been actively involved in Pulse Tube Cryocooler R&D, including the development and testing of both laboratory and flight cryocooler hardware. At Lockheed Martin Astronautics he was Payload Manager and PI for the Miniature Pulse Tube Cryocooler Experiment that flew on STS-90 (April 1998) and on STS-108 (Nov 2001). He collaborated with NIST on a 150K one-stage coaxial cooler to replace inefficient TECs in space instrument applications. In 1997 he demonstrated high accuracy thermometry ( 0.005 K) using commercial devices for NOAA satellite emissivity calibrations.

In 1992-93 Dr. Ladner was Assistant Program Manager at DoE in High Temperature Superconductor Technology. In 1985-89 Dr. Ladner developed a Cryogenic R&D Lab at Ball Aerospace and managed development of a spaceflight prototype adiabatic demagnetization refrigerator, operated at 0.18 K for a SIRTF far-IR requirement.

In 1980-85 Dr. Ladner was a space physicist at NASA-MSFC Space Science Lab and a member of the NASA/ SAO team for the IR Telescope on Spacelab 2 (1985). He received a NAS Fellowship, NASA & SAO Outstanding Performance and Group Achievement Awards. He has authored numerous publications and technical reports in the fields of cryogenic engineering, low temperature physics, and flight hardware performance.

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