Aug. 13 - Cryogenics - Mike McAshan
[Tour: walk thru Central Helium Liquifier]
(Lecture partly comparable to the fun stuff in ch 1 & 2 of
Flynn, "Cryo Engineering")
Basic principles
Great moments in Cryogenic History, Cryo Nobel prizes, etc.
Properties of cryogenic fluids
How Helium plants are the same & different
Microscopic origin of J-T coeff's, inversion temp, etc.
Compressors and Expanders
Heat Exchangers
Properties of Materials at low temperatures
Minimizing heat leaks: vacuum insulation, heat intercepts...
Theory of Multilayer Insulation
Thermo-acoustic oscillations
Thermometry & Barometry etc.
Ten bad ways to make a Mass Flow Meter
Concepts in Process Control & failure modes
How to think about Capital and Operating costs
What's inside the CHL
Aug. 14 - Controls Systems - Gerry Annala
[Tour: walk all the way around the Tevatron tunnel]
What the control system does on every pulse of the Tevatron.
- fault tree for the accelerator complex
- map of all possible beam transfers
- the need for & logic of each subsystem
- timing requirements
- the way it works (hardware, software, etc.)
- the way it fails
- Top Ten Trickiest Controls Subsystems
(i.e. why some of you gotta apply for the
job openings in the controls group!)