Search found 92 matches

by dukwon
Wed Apr 25, 2018 11:39 am
Forum: New Users Start Here
Topic: HI
Replies: 2
Views: 1769

Re: HI

Welcome!

Don't be put off by the lack of posts recently, and if you're an IRC user, check out #lhc on irc.gnome.org
by dukwon
Tue Apr 24, 2018 7:29 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

Good news: the intensity ramp is about 7–10 days ahead of schedule, although some of that extra time may be spent on extra MDs. Bad news: the problem at 16L2 has not gone away, and seems to be identical to last year. It was responsible for 5 dumps during the scrubbing run yesterday. As a reminder: 1...
by dukwon
Mon Apr 23, 2018 8:09 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

We've had 2 fills with 339b. Scrubbing all of today until tomorrow morning. Then a third 339b fill with 48 bpi. Might switch to 600b Wednesday afternoon.
by dukwon
Sat Apr 21, 2018 11:37 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

We've had 3 fills with 75b, where the third was with BCMS beams. I believe the next step will be 300b.
Currently scrubbing with 2605b. More scrubbing planned on Monday.
by dukwon
Wed Apr 18, 2018 1:37 pm
Forum: Off topic
Topic: Meanwhile, in Japan...
Replies: 4
Views: 845

Re: Meanwhile, in Japan...

Hm, no, while the beam currents are higher than the LHC by a factor of ~5, the LHC still has 3 orders of magnitude more energy per particle. Maybe they just mean luminosity.
by dukwon
Wed Apr 18, 2018 1:32 pm
Forum: Off topic
Topic: Meanwhile, in Japan...
Replies: 4
Views: 845

Re: Meanwhile, in Japan...

Stored energy in the ring, perhaps? It's certainly the highest-luminosity collider (800 kHz/µb)
by dukwon
Wed Apr 18, 2018 11:51 am
Forum: Off topic
Topic: Meanwhile, in Japan...
Replies: 4
Views: 845

Meanwhile, in Japan...

There will be a livestream starting Friday 12:00 (Japanese time) for the first collisions of SuperKEKB https://www.kek.jp/en/newsroom/2018/04/12/1300/ If you want to watch some monitoring plots, there are some here: http://www-linac.kek.jp/skekb/snapshot/dailysnap.html http://www-linac.kek.jp/skekb/...
by dukwon
Tue Apr 17, 2018 11:10 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

Screenshot from 2018-04-17 13-07-37.png
3DTower.png
Screenshot from 2018-04-17 13-07-00.png
by dukwon
Tue Apr 17, 2018 11:02 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

Stable beams with 3 bunches per beam!
lhc1.png
by dukwon
Mon Apr 16, 2018 6:47 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

Latest news is that we could see stable beams after tomorrow's morning meeting (so in about 12 hours or more)
by dukwon
Sat Apr 14, 2018 11:21 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

ADT tests (necessary for train injections and abort gap cleaning) have been given priority over first stable beams w/ 3b, so the latter has been pushed back to Tuesday.
by dukwon
Thu Apr 12, 2018 9:22 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

dashboard0.png
We have collisions!
by dukwon
Wed Apr 11, 2018 7:04 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

First collisions (not stable beams) could be tomorrow mid-morning if loss maps and TCDI validation are performed during the night.
by dukwon
Tue Apr 10, 2018 10:02 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

The recommissioning is going very smoothly. Collision-finding should already take place this week, and first stable beams with 3 bunches could be as early as Monday 16th.

There will be a scrubbing run either next week or the one after.
by dukwon
Fri Mar 30, 2018 10:45 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11060

Re: 2018 Operation

Both beams successfully circulating

https://i.imgur.com/3ef5c2g.png