LHC@home

LHC@home has delivered some very useful physics results from the recent beam-beam tracking campaign. The accelerator physicists say that these studies were possible only with LHC@home because it gives much more resouces than what they had before. They would not even have imagined making such detailed studies without LHC@home. They could also scan the parameter space more carefully and obtain better results.

One presentation about these results is here: Beam-beam results. It contains some accelerator physics jargon, but the plots basically show the area where LHC beam is stable (called dynamic aperture, DA). These results will also be presented in the next particle accelerator conference EPAC'06.

Jukka Klem
LHC@home team

---

Thanks for keeping us informed about the scientific progress. Although I have to admit, that I did not understand much, if any.

One question though. On page 31 it says something about proposed studies. Are we already in the middle of them, or are they still to come?

And it is really good to know, that our help is appreciated.

Michael

---

Team Linux Users Everywhere

Thanks for the feedback. I'll check out that paper soon. Probably as soon as I get my final exams graded :(

It feels good to know that my little lappy is helping design something as cool and powerful as the LHC!

Kathryn

---

Kathryn :o)
The BOINC FAQ Service
The Unofficial BOINC Wiki
The Trac System
More BOINC information than you can shake a stick of RAM at.

Excellent! Thank you very much for posting this link Jukka. It is very reassuring to get this type of verification that the results of our efforts are actually being utilized - even more gratifying to see some scientific evidence that it is leading to a much more stable beam.

I assume that live tests with the beam have not yet commenced because 1. the magnets are not all yet positioned and aligned and 2. when the beam is on everyone working on detectors, magnets, cabling etc. would have to leave the tunnel. Do you know when the first actual live beam tests are due to start?

---

We are in the middle of new beam-beam studies with LHC@home. The effects of strong magnets (triplet magnets) are simulated. These magnets are close to the point where the LHC beams collide and they are very important for reducing the beam size so that there are many proton-proton collisions. The accelerator scientists are also going to study different tune values. Tune is the number of transverse oscillations protons make when they go around the LHC.

Many more simulations are planned, but first the scientists wait for the results from earlier simulations and then they take a few days to analyze the results.

Jukka Klem
LHC@home team

---

The first live beams should start in the second half of next year if everyhting goes well.
The is a lot of information about the LHC in the LHC web site. A new big control center has been opened. From there the operators control the LHC beams and the related infrastructure.
The big dipole magnets are currently installed in the LHC tunnel. One problem is that there are not enough big trucks to transport the magnets fast enough...

Jukka Klem
LHC@home team

---

One problem is that there are not enough big trucks to transport the magnets fast enough...

so now there is a new project, Trux@home to model the new vehicle accelerator...


Seriously tho, I'd like to add my thanks for the report back, it is good to know our contrubution has already proved useful

---