Search found 34 matches
- Tue May 12, 2015 8:35 am
- Forum: New Users Start Here
- Topic: Hi dear people!
- Replies: 3
- Views: 7760
Re: Hi dear people!
don`t believe the rumors but check it yourself. Liking your attitude already. :) Current status is that they are trying to set up everything to do some serious physics, but the last few days everything seems to cooperate against them: all kinds of different mechanical parts of different things seem...
- Fri May 08, 2015 4:52 am
- Forum: End Of The World
- Topic: The CERN safety study
- Replies: 54
- Views: 115415
Re: The CERN safety study
Geometric mean? Where does that come from? Sounds really strange to me.chelle wrote:In that case, the energy available in the collision is the geometric mean of the beam (UHECR) energy and the target mass.
- Thu Apr 30, 2015 4:48 pm
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
Apparently they decided the ULO is not big enough to hinder beam operation. The only thing that can go wrong is that it will cause so much radiation when touched that it will quench the magnet it is in, but that appears not to happen with the beams they tried until now. As a precaution, they steer t...
- Fri Apr 24, 2015 6:10 am
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
Latest news: I concluded that if they touched the beam when steering 6 mm down, the object would be there, butI forgot to take the thickness of the beam into account. The official position of the object is: horizontally in the middle, vertically 9.6 mm below beam centre (which is about 8 mm high, co...
- Wed Apr 22, 2015 7:09 pm
- Forum: The Accelerator
- Topic: What is a BSRI?
- Replies: 2
- Views: 7200
What is a BSRI?
Ladies and gentlemen, Does anybody know what a BSRI is for? I figured out the following: From the pictures in the Elogbook, it appears to be a device that splits a beam through two slits and makes pictures of the interference pattern. It looks like it operates on light (it says lambda=560 nm, which ...
- Wed Apr 22, 2015 6:55 pm
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
I thought that meant "not speaking the truth".chelle wrote:It's 'Lying' without an a
Wonder how you spell that, then.
- Wed Apr 22, 2015 4:38 pm
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
The latest news is that they tried to scrape the ULO with a "nominal" beam, that is a single bunch of about 100 billion protons in this case. This resulted in the ULO being 1 mm lower, so it is now 6 mm under the center of the tube. This might be enough. :shifty: What happened the last few days is m...
- Wed Apr 22, 2015 4:25 pm
- Forum: The Accelerator
- Topic: 2014 machine commissioning and 2015 start up
- Replies: 59
- Views: 159567
Re: 2014 machine commissioning and 2015 start up
It might be not so bad. I see no plans to stop the operations (yet).
For details, see the thread "MUFO?"
For details, see the thread "MUFO?"
- Wed Apr 22, 2015 4:23 pm
- Forum: New Users Start Here
- Topic: New User
- Replies: 2
- Views: 6054
Re: New User
Glad to see new faces around here; it was terribly silent lately.
And I spent so much time figuring out details and posting them
And I spent so much time figuring out details and posting them
- Tue Apr 21, 2015 10:16 am
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
I just read that they named it, in their typical CERN way, an ULO (Unidentified Laying Object).
- Mon Apr 20, 2015 5:16 pm
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
Well, the good news is that is seems to be gone. It might be that heating the beam screen solved the problem: it hasn't been seen since, even though they sent the beam right next to the probable source, as far left, right, down and up (in that order) as they could: no more MUFOs. But it also might b...
- Sat Apr 18, 2015 3:19 pm
- Forum: The Accelerator
- Topic: MUFO?
- Replies: 20
- Views: 34034
Re: MUFO?
What is a MUFO? A microUFO? I can't find MUFO or UFO in the acronym list. Quite the contrary, It is a Mega UFO. The first mention of it was in the morning meeting on Tuesday 14 March: Comparison to UFO-Model Preliminary analysis indicates that the particle needs to be very large: 150 µm radius. (Pr...
- Fri Apr 17, 2015 12:41 pm
- Forum: The Accelerator
- Topic: 2014 machine commissioning and 2015 start up
- Replies: 59
- Views: 159567
Re: 2014 machine commissioning and 2015 start up
I'll try to explain what I understood from the elogbook in the first weeks of commisioning. Most of the systems mentioned here are being adjusted, tested, repaired when needed, and procedures for using them are written. First, there are the big working magnets: the bending dipoles and focusing quadr...
- Wed Apr 15, 2015 1:55 pm
- Forum: The Accelerator
- Topic: Humor in the elogbook
- Replies: 0
- Views: 8633
Humor in the elogbook
For those of you reading the elogbook, Please show you the funniest entries you found. Sometimes they can be pretty interesting. For starters, here are some entries I found: MPP log, april 3, 13:26: Spent a few hours of Good Friday to analyse a big RB.A34 quench + propagation to RQ. All done, all ok...
- Wed Apr 15, 2015 11:21 am
- Forum: The Accelerator
- Topic: Entertainment for nerds
- Replies: 0
- Views: 7598
Entertainment for nerds
This might be fun to do if they are injecting: Open a browser, with Vistar pages in different tabs. Choose the following vistar pages in order: CPS, PSB, SPS Page 1, LHC Page 1, LHC Beam Dump Now go to the first tab, look for a "LHC Probe" line, and if you see it is sent, switch to PSB, check if you...