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General => General Technical Chat => Topic started by: dexters_lab on September 07, 2015, 08:35:37 pm

Title: Some electronics porn from CERN
Post by: dexters_lab on September 07, 2015, 08:35:37 pm
new liquid cooled detectors at CERN

https://www.youtube.com/watch?v=miJbB9MTwzU (https://www.youtube.com/watch?v=miJbB9MTwzU)
Title: Re: Some electronics porn from CERN
Post by: wraper on September 07, 2015, 08:50:22 pm
Seems in the end they decided ceramic capacitors were not enough  :)
Title: Re: Some electronics porn from CERN
Post by: max666 on September 08, 2015, 12:05:56 am
I would love to see this in CPUs and GPUs.

This also seems to come in handy for all the various chip stacking technologies coming up, and the thermal problems going along with that.
Title: Re: Some electronics porn from CERN
Post by: Mechanical Menace on September 08, 2015, 12:16:02 am
Damn how big is a single die?
Title: Re: Some electronics porn from CERN
Post by: Icarus on September 08, 2015, 07:21:03 am
Look at 2:21, he is not working ! he is texting !! :D :D
Title: Re: Some electronics porn from CERN
Post by: German_EE on September 08, 2015, 07:15:20 pm
I would love to see a solution like that applied to RF power amplifiers. Currently if I want to transmit high power I need a copper heat spreader underneath the FETs and then a massive heatsink with fans just to carry away the waste heat. Liquid cooling would mean a submersible pump and a 15L tank underneath the desk.
Title: Re: Some electronics porn from CERN
Post by: McBryce on September 08, 2015, 09:54:30 pm
Quote from: Icarus on September 08, 2015, 07:21:03 am
Look at 2:21, he is not working ! he is texting !! :D :D

Nah, he's probably reading the display of some piece of test equipment that most of us only dream of owning :D

McBryce.
Title: Re: Some electronics porn from CERN
Post by: VK3DRB on September 09, 2015, 01:55:18 pm
Dexter, you might need some help. I don't see anything in the subject that is pornographic at all. Maybe you have spent too much time in Soho. :popcorn:    :-DD

The cooling method described is well engineered, but I reckon it pales into insignificance compared to how the Apollo Saturn V rockets were cooled. Thanks to regenerative cooling, the engine thrust chamber and nozzle extension  was barely above room temperature at takeoff... supreme engineering!
https://www.youtube.com/watch?v=DKtVpvzUF1Y (https://www.youtube.com/watch?v=DKtVpvzUF1Y)
Title: Re: Some electronics porn from CERN
Post by: daqq on September 11, 2015, 10:35:40 am
Today, from the CERN facebook fanpage. Someone misjudged the decoupling needs :)
Title: Re: Some electronics porn from CERN
Post by: PE1RKI on September 11, 2015, 03:53:58 pm
seems like somebody from batteriser made an account here. ^^

kerosene drain in a rocket
https://www.youtube.com/watch?v=fL-Oi9m2beA (https://www.youtube.com/watch?v=fL-Oi9m2beA)
Title: Re: Some electronics porn from CERN
Post by: SeanB on September 11, 2015, 04:57:36 pm
Not that they misjudged the decoupling, just that Kemet does not make the value they need in that small a footprint in a cheap enough custom part.

Wonder what they are using as coolant, at -20C they would be using a HFC compound, and all those with a boiling point above 0C at a sane pressure. Looking at the piping and attachment I would guess a max pressure of 2 atmospheres at most, so you need something that will still be liquid at room temperature, but not freeze at -40C. R141B would be ideal, but then they would need a special dispensation or would have to have a ton around for use in new assemblies and to repair older ones. I still have around 10l in a tank, used for those jobs where you really need to clean a coil or cap tube inside.
Title: Re: Some electronics porn from CERN
Post by: dexters_lab on September 15, 2015, 12:15:06 am
another video on what looks to be the same detector

https://www.youtube.com/watch?v=JTLrwWLrYJk (https://www.youtube.com/watch?v=JTLrwWLrYJk)