PROJECT SITE:

You are here!

Official site of the design, build, test and launch of JWST.

SCIENCE SITE:

webbtelescope.org

JWST Science overview, future home of science data and images.

NASA HQ SITE:

www.nasa.gov/jwst

Overview of the spacecraft, mission and science of JWST.

JWST related content on the NASA HOME PAGE plus links to NASA’s other great activities and missions.

MISSIONS:

JWST related Missions.

MORE NASA:

News, Careers, Locations & more.


Cryocooler

Cryocooler, Northrop Grumman

The mid-IR detectors must operate at 7K to detect thermal emissions at wavelengths out to 29 microns. A high-efficiency pulse-tube cryocooler is being developed to provide this cooling capability. The Webb cryocooler is unique in that it provides cooling remotely: the cold head is close to the mid-IR detectors which are located approximately 20 meters from the cryocooler compressor and electronics.

A three year technology demonstration program has already proven the remote cooling capability. Further testing on a bread-board system has shown that the cooler is capable of cooling the detectors to required 7K operating temperature.

Image Gallery View our crycooler image gallery.