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  1. #1
      Eiman
    Jul 2011
    -
    14,750

    Nuclear Accelerators
    10 . , ( ) . : (1) : 10 100 (2) : 100 1000 . . (3) : 1000 . 10000000 . (1) Ion source: 10000 .
    (2) beam optics: Lorentz force
    F = q(vxB)
    (3) Target: nuclear spectroscopy 10 10 . . (4) Detector . (1) Electrostatic accelerator (2) Cyclotron accelerator (3) Linear accelerator (4) Synchrotrons (5) Colliding-Beam accelerator Electrostatic accelerator E = qV V 10 q E . 10 . 1932 Cockcroft and Walton 800
    voltage multiplication
    P + 7Li º 4He+4He
    Van de Graaff 1932
    corona discharge 20 .
    V = Q/C
    C Q V . SF6 10 20
    .
    . Tandem Van de Graaff :
    20 . . Cyclotron accelerator 1934 . . D .
    T/2 T .
    ()
    v = qBr/m
    . Lawrence and Livingston 1931 12.5 1.3 1.2 . 35 10 . 1930 75 20 . Argonne National Laboratory .
    Linear accelerator Linac . .
    . ɡ t/2 n
    Ln = vnt/2
    n
    1/2 mvn2 = neVo
    n :
    1967 1.2 1.2x109 eV .
    Los Alamos Meson Physics Laboratory
    Colliding-Beam accelerator
    () . X :
    P + P º P + P + X

    .......

  2. #2
      Raed
    Jul 2011
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    1,052

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  3. #3

    Jul 2012
    5,302

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