Javelin was developed for use by the U.S. Army and U.S. Marine Corps as a man-portable, anti-tank weapon. A key feature is its fire-and-forget technology. Carleton has been involved with the Javelin program since its inception in the late-1980s, and we are currently working on the second year of full-rate production. We have produced more than 5,000 cryostats and gaslines with an estimated 15,000 more to come.

Cryostat performance and features:

• Fast cooldown unit designed to optimally cool a dewar encapsulated infrared-imaging focal plan array to <90k in < 10 seconds using a 7,500 psi argon gas supply
• Dual parallel heat-exchangers with self-regulating two-flow gas control
• Integrated 5-micron wire-mesh filter
• .375 inch (.952 mm) heat exchanger diameter
• <10 gram total mass

Performance and features:

• Wound for 2-axis torque relief
• Integral inlet and outlet subminiature gas fittings
• Drawn and seamless stainless steel tubing
• Manufactured, cleaned, and tested with cryogenically-compatible processes

Carleton's LEAP vessel provides high pressure argon gas to an open-cycle Joule-Thomson cryostat. Its features include:

• Titanium alloy toroid vessel
• Welded manifold and mounting hardware
• Cryogenically-compatible pyrotechnic initiator
• Filled with 6,300 psig argon at 25 degrees C
• Hard volume of 9 cubic inches
• Burst pressure of 14,990 psig
• Filled weight of 650 grams max