Older Events and discussion 3/22/10

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March_Hare
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Re: ** Current Events and discussion **

Post by March_Hare » Thu Feb 25, 2010 6:10 pm

"... the titanic subterranean magno-doughnut particle smasher ..."

Yay for Lewis!

Edit: looks like they are getting ready for the real thing tonight. (19:26 CET)
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CharmQuark
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Re: ** Current Events and discussion **

Post by CharmQuark » Thu Feb 25, 2010 8:33 pm

Anyone who doesn't take truth seriously in small matters cannot be trusted with large ones either by Albert Einstein.

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Tau
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Re: ** Current Events and discussion **

Post by Tau » Thu Feb 25, 2010 8:34 pm

There was a minor event wednesday, where the new Quench Protection System (nQPS) was a bit too quick deciding to quickly stop 50 magnets by heating them.
The results were so drastic that you can even see in on the temp graph of S78 http://hcc.web.cern.ch/HCC/cryo_main/cr ... &sector=78 (this will vanish in a week from this post).
This is not a real problem, more an annoyance.
Effects for what I understand now are:
  • beam postponed till Friday
  • max energy 1 TeV until further notice :(
I am convinced they'll fix this soon, after they have analysed all the data.
(While typing this, Emmylou put the link to the latest info in. Thanks!)
- Tau

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CharmQuark
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Re: ** Current Events and discussion **

Post by CharmQuark » Thu Feb 25, 2010 8:39 pm

Tau!!!! :D :thumbup:
Anyone who doesn't take truth seriously in small matters cannot be trusted with large ones either by Albert Einstein.

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gronos
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Re: ** Current Events and discussion **

Post by gronos » Thu Feb 25, 2010 8:41 pm

It certainly seems to know how to quench, simply needs to be taught when to quench. Pity it will hold up getting to 3.5TEV for a while.

Rich
Rich Gronostajski
Center of Excellence in Bioinformatics and Life Sciences
University at Buffalo

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DCWhitworth
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Re: ** Current Events and discussion **

Post by DCWhitworth » Thu Feb 25, 2010 8:51 pm

So basically it's the safety systems being over enthusiastic ?
DC

The LHC - One ring to rule them all !

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LarryS
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Re: ** Current Events and discussion **

Post by LarryS » Thu Feb 25, 2010 8:58 pm

Better over for we all saw what happened, given what existed then, when it was under protetive.

Kasuha
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Re: ** Current Events and discussion **

Post by Kasuha » Fri Feb 26, 2010 12:57 pm

over = LHC never starts
under = LHC fails
So I guess we need them "just right".

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CharmQuark
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Re: ** Current Events and discussion **

Post by CharmQuark » Fri Feb 26, 2010 1:12 pm

Kasuha wrote:over = LHC never starts
under = LHC fails
So I guess we need them "just right".
works for me :D :thumbup:
Anyone who doesn't take truth seriously in small matters cannot be trusted with large ones either by Albert Einstein.

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DCWhitworth
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Re: ** Current Events and discussion **

Post by DCWhitworth » Fri Feb 26, 2010 1:18 pm

Kasuha wrote:over = LHC never starts
under = LHC fails
So I guess we need them "just right".
Well there is an area of acceptable tolerance, it's just a matter of defining it.
DC

The LHC - One ring to rule them all !

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CharmQuark
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Re: ** Current Events and discussion **

Post by CharmQuark » Fri Feb 26, 2010 1:21 pm

Latest Info

26-02-10 estimate - hope to solve BIC issues and close machine by noon Friday 26th February.

Afternoon:
-BIC and LBDS test in afternoon
-QPS test
-Pre-Cycle of whole machine


Late afternoon - evening: hope to start operation with beam.


Friday 26th February

Morning until 2pm Finishing patrol (caused by open door) plus access for BIC and QPS.


14:00 Start BIC and LBDS tests

Fingers Crossed :thumbup:
Anyone who doesn't take truth seriously in small matters cannot be trusted with large ones either by Albert Einstein.

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chriwi
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Re: ** Current Events and discussion **

Post by chriwi » Fri Feb 26, 2010 4:16 pm

Its already friday afternoon
- beampermitlop closed
- but they still need acces at point 6, at least no warmingup until now
bye

chriwi

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DCWhitworth
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Re: ** Current Events and discussion **

Post by DCWhitworth » Fri Feb 26, 2010 9:20 pm

Machine access ended, precycle starting, beams in c.90 minutes of all goes well.
DC

The LHC - One ring to rule them all !

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morgad
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Re: ** Current Events and discussion **

Post by morgad » Fri Feb 26, 2010 10:33 pm

first time I have seem 'beam setup - cycling' in a while :-)
(or anything else than 'no beam' come to that)

Dave
fingers and toes crossed

rcl
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"start injection handshake" :-)

Post by rcl » Fri Feb 26, 2010 10:46 pm

Here we go...

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