How Webb's Cryocooler Works - MIRI is less than 7 Kelvin! Claim your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/launchpadastronomy. Start your free trial TODAY so you can watch 'Jim Al-Kalili's Guide to Life, the Universe, and Everything' and the rest of MagellanTV’s science collection: https://www.magellantv.com/series/jim-alkhalilis-guide-to-life-the-universe-and-everything
How MIRI's Cryocooler works:
00:00 Intro
01:00 Helium Cryostats vs. Cryocoolers
03:04 Joule-Thomson Cooler
05:13 Magellan TV
06:01 MIRI's Cryocooler Layout
07:05 Thermoacoustic Pulse Tube Pre-Cooler
09:01 Cryocooler Tower Assembly
11:10 Pinch Point Transition
13:22 Thanks to my Patrons!
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🧭 References:
@NightHawkInLight 's series on thermoacoustic pulse tube coolers:
https://youtu.be/abswNCqnMRQ
https://youtu.be/kkBBkQ8jFRY
Petach et al 2019: https://www2.jpl.nasa.gov/adv_tech/coolers/Cool_ppr/C18-
Petach et al 2016: https://www2.jpl.nasa.gov/adv_tech/coolers/Cool_ppr/C16-2010%20MIRI%20Cooler%20Update.pdf
A.A.Boroujerdi, M.Ziabasharhagh 2014: https://doi.org/10.1016/j.enconman.2014.05.019
%20MIRI%20Cooler%20Cold%20Head%20Testing.pdf
Durand et al 2009: https://cryocooler.org/resources/Documents/C15/002.pdf
Ray Radebaugh 2003: https://trc.nist.gov/cryogenics/Papers/Review/2003-Pulse_Tube_Cryocoolers.pdf
Ross, Jr. and Boyle 2002: https://www2.jpl.nasa.gov/adv_tech/coolers/Cool_ppr/C12-2002%20NASA%20Overview.pdf
NBS 1981: https://nvlpubs.nist.gov/nistpubs/Legacy/TN/nbstechnicalnote631.pdf
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