Process of making cryogenically cooled high thermal performance crystal optics

Patent · 23 June 1992

OSTI ID:7206917

Kuzay, T M

A method is disclosed for constructing a cooled optic wherein one or more cavities are milled, drilled or formed using casting or ultrasound laser machining techniques in a single crystal base and filled with porous material having high thermal conductivity at cryogenic temperatures. A non-machined strain-free single crystal can be bonded to the base to produce superior optics. During operation of the cooled optic, N[sub 2] is pumped through the porous material at a sub-cooled cryogenic inlet temperature and with sufficient system pressure to prevent the fluid bulk temperature from reaching saturation. 7 figs.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5123982; A
• Application Number: PPN: US 7-547753
• OSTI ID: 7206917
• Country of Publication: United States
• Language: English

Related Subjects

661210* -- Cryogenics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COOLANTS
COOLING
CRYOGENIC FLUIDS
CRYOGENICS
CRYSTALS
DESIGN
ELEMENTS
FLUIDS
MONOCRYSTALS
NITROGEN
NONMETALS
OPTICAL SYSTEMS