2014 machine commissioning and 2015 start up

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tomey36
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Re: 2014 machine commissioning and 2015 start up

Post by tomey36 » Tue Mar 24, 2015 7:12 am

I feel like you are trolling me. I allready answered your question. You just quoted my answer and asked exactly the same question.

andrewp
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Re: 2014 machine commissioning and 2015 start up

Post by andrewp » Fri Mar 27, 2015 6:55 am

In which sector is the short circuit?

It's 3-4

Kasuha
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Re: 2014 machine commissioning and 2015 start up

Post by Kasuha » Mon Mar 30, 2015 7:28 am

Beautiful x-rays of the short at the end of the Sunday's presentation. Pity there's no description, I'm still unsure if the problem is the apparent pile of debris or the wire-like thing.

https://indico.cern.ch/event/382659/con ... ides/0.pdf

Whatever it is I hope they'll succeed with the current pulse.

andrewp
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Re: 2014 machine commissioning and 2015 start up

Post by andrewp » Tue Mar 31, 2015 5:28 pm

Indeed they did succeed. Beam to follow!

pcatom
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Re: 2014 machine commissioning and 2015 start up

Post by pcatom » Tue Mar 31, 2015 6:09 pm

andrewp wrote:Indeed they did succeed. Beam to follow!
Yes ... see

http://home.web.cern.ch/about/updates/2 ... back-track

andrewp
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Re: 2014 machine commissioning and 2015 start up

Post by andrewp » Thu Apr 02, 2015 6:06 am

3-4 now quenched. Still got red on the cryo machinery (not the ring). Come on lads - get your fingers out

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DCWhitworth
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Re: 2014 machine commissioning and 2015 start up

Post by DCWhitworth » Thu Apr 02, 2015 10:47 am

We are fully cool !! For the first time since 2012 the cryo status screen is all green.
DC

The LHC - One ring to rule them all !

tomey36
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Re: 2014 machine commissioning and 2015 start up

Post by tomey36 » Thu Apr 02, 2015 12:28 pm

I just saw that, also all sectors are trained to 6.5 tev. Beams should follow soon!

Conundrum
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Re: 2014 machine commissioning and 2015 start up

Post by Conundrum » Sat Apr 04, 2015 7:32 am

Yay!
So am I right in saying that the magnets are maxed out right now? or is this more of a soft limit to maximize useful S-N ratio?

-A

andrewp
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Re: 2014 machine commissioning and 2015 start up

Post by andrewp » Sat Apr 04, 2015 8:46 pm

The design called for 7 TeV (for 14 TeV collisions) so in principle they can be trained up to that.

And that's the limit for these 8 Tesla magnets, based on the LHC's bending radius

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Tau 2
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The beam is going round

Post by Tau 2 » Sun Apr 05, 2015 9:28 am

Sunday, eastern 2015 @ 11:00: Beam 2 is going round!
:dance:

Exciting times are coming!
- Tau

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DCWhitworth
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Re: 2014 machine commissioning and 2015 start up

Post by DCWhitworth » Sun Apr 05, 2015 11:15 am

andrewp wrote:The design called for 7 TeV (for 14 TeV collisions) so in principle they can be trained up to that.

And that's the limit for these 8 Tesla magnets, based on the LHC's bending radius
6.5 TeV is likely to be the limit I think. They've come to the conclusion based on data they have gathered already that some of the magnets are not likely to be able to sustain 7 TeV, hence the decision to limit the machine to 6.5 TeV
DC

The LHC - One ring to rule them all !

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Tau 2
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Re: 2014 machine commissioning and 2015 start up

Post by Tau 2 » Sun Apr 05, 2015 1:25 pm

According to the latest plans, they are going to do more training quenches at the end of the year when they have had a lot of runs first.
Especially sector 45 is going to be interesting, I guess.
- Tau

andrewp
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Re: 2014 machine commissioning and 2015 start up

Post by andrewp » Sun Apr 05, 2015 1:33 pm

Making 20 Tesla magnets for the 100 TeV FCC is sure going to be a challenge

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Tau 2
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Re: 2014 machine commissioning and 2015 start up

Post by Tau 2 » Sun Apr 05, 2015 3:01 pm

andrewp wrote:Making 20 Tesla magnets for the 100 TeV FCC is sure going to be a challenge
If you are really interested, this is the web page of the group that is going to do it:
http://hilumilhc.web.cern.ch/activities/wp3-ir-magnets
- Tau

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