Some electronics porn from CERN - Page 1
Forum section: electronics / general

author: dexters_lab
author_rank: Unknown
timestamp: September 07, 2015, 08:35:37 pm
content: new liquid cooled detectors at CERN

author: wraper
author_rank: Unknown
timestamp: September 07, 2015, 08:50:22 pm
content: Seems in the end they decided ceramic capacitors were not enough

author: max666
author_rank: Frequent Contributor
timestamp: September 08, 2015, 12:05:56 am
content: 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.

author: Mechanical Menace
author_rank: Super Contributor
timestamp: September 08, 2015, 12:16:02 am
content: Damn how big is a single die?

author: Icarus
author_rank: Regular Contributor
timestamp: September 08, 2015, 07:21:03 am
content: Look at 2:21, he is not working ! he is texting !!

author: German_EE
author_rank: Super Contributor
timestamp: September 08, 2015, 07:15:20 pm
content: 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.

author: McBryce
author_rank: Super Contributor
timestamp: September 08, 2015, 09:54:30 pm
content: Quote from: Icarus on September 08, 2015, 07:21:03 amNah, he's probably reading the display of some piece of test equipment that most of us only dream of owningMcBryce.

author: VK3DRB
author_rank: Super Contributor
timestamp: September 09, 2015, 01:55:18 pm
content: 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.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!

author: daqq
author_rank: Super Contributor
timestamp: September 11, 2015, 10:35:40 am
content: Today, from the CERN facebook fanpage. Someone misjudged the decoupling needs

author: PE1RKI
author_rank: Regular Contributor
timestamp: September 11, 2015, 03:53:58 pm
content: seems like somebody from batteriser made an account here. ^^kerosene drain in a rocket

author: SeanB
author_rank: Super Contributor
timestamp: September 11, 2015, 04:57:36 pm
content: 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.

author: dexters_lab
author_rank: Unknown
timestamp: September 15, 2015, 12:15:06 am
content: another video on what looks to be the same detector