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Day at LHC timelapsed to 4:45 minutes

  1. Apr 26, 2010 #1

    rhody

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    Thought some might enjoy this, I thought it was a cool video including the synthesizer's voice...

    Reminds me vaguely of Stephen Hawking's...

    Even if you are not familiar with all phases of the cycle, watching this video gives you a rough idea of the time intervals to inject (with retries, about two hours, ramp to 3500 GeV, set up collimators and adjusting to squeeze the beams from 5 mm to 2 mm, then to achieve squeezed stable beams.

    If you look in the upper right hand corner, you get a more frequently updated display of each beams energy levels and they vary beam 1 from around 1.1 - 1.5 GeV, and beam 2 from around 1.8 - 2.1 GeV.

    Is the fact that the beams are not in fact balanced an issue, and anomaly or by design ?

    As always thanks in advance...

    https://www.youtube.com/watch?v=XJLHRtEay1Y

    Rhody...
     
    Last edited by a moderator: Apr 27, 2010
  2. jcsd
  3. Apr 27, 2010 #2

    Vanadium 50

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    I hate to be harsh, but this is wrong. The reason I am being less than gentle is because there is a huge amount of misinformation on the LHC going on, and things are not helped by having people who don't understand what is happening "explaining" it.

    The beam energy is the number next to the word "Energy". It is measured in GeV, and is the same for Beam 1 and Beam 2. It has to be, as they use the same magnets. The numbers to the right of that are the number of protons per beam, or the beam currents, and are denoted by I(B1) and I(B2) - I is for current.

    It's good to be excited, but please, please, check your facts before "explaining" them to others.
     
  4. Apr 27, 2010 #3

    rhody

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    Thanks V_50,

    I was just calling them as I saw them (and asking a clarifying question, which you adeptly answered), now it makes perfect sense, the protons per beam numbers do not have to agree.

    You have every right and expectation to be proud of what has been achieved at CERN, thanks for the less than "pithy" response, I am trying to be as accurate as I can be given the amount of information I am able to access.

    Rhody...
     
  5. Apr 27, 2010 #4

    Vanadium 50

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    If you watch them inject, you will see during periods where only one beam is circulating, only one beam will have a reported current. These periods are probably only a few seconds long on your compressed scale, but maybe you can see them.
     
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