高能正負電子對撞機的參數(shù)表.doc

高能正負電子對撞機的參數(shù)表VEPP-2M(Novosibirsk)DAFNE(Frascati)BEPC(Beijing)VEPP-4M(Novosibirsk)起始運行19741998199819891994最大束流能量0.70.550.510(0.75max)2.26亮度5100135（540）550碰撞時間間隔(ms)0.030.01(0.0027)0.80.6對撞角(mrad)000能散度(10-3)0.360.400.581束團長度(cm)33.055束半徑(10-6m)H/V:300/10H:2100V:21H:800V:37H:1000V:30亮度壽命(hr)連續(xù)27-122橫發(fā)射度(p rad-m)H/V:110/1.3H:1000V: 10H:600V: 28H:400V: 20b*(m)H:0.45V:0.05H:4.5V:0.045H:1.2V:0.05H:0.75V:0.05束團粒子數(shù)(1010)26.78.92015RF頻率(MHz)200368.25199.53180平均束流(mA)50160131352504080束團數(shù)13012012對撞點2221環(huán)長(km)0.0180.09770.24040.366高能正負電子對撞機的參數(shù)表CESR(Cornell)KEKB(Japan)PEP-II(SLAC)SLC(SLAC)LEP(CERN)起始運行19791999199919891989最大束流能量6e-:7-12(9.0)e+:2.5-4(3.1)50100亮度1000100001300（1999）30002.550碰撞時間間隔(ms)0.028-0.220.0020.0042830022對撞角(mrad)200011,00001.20能散度(10-3)0.60.7e-/e+:0.61/0.771.21.0束團長度(cm)1.80.4e-/e+:1.1/1.00.11.0束半徑(10-6m)H:500V:10H:77V1.9H:181V:5.4H:1.5V:0.5H:200V:8亮度壽命(hr)3-422.5_10橫發(fā)射度(p rad-m)H:240V: 6H:18V:0.36e-:48(H),1.5(V)e+:64(H),2.0(V)H:0.5V:0.05H:35V:0.25-1b*(m)H:1.0V:0.018H:0.33V:0.01e-:0.67(H),0.02(V)e+:0.50(H),0.015(V)H:0.0025V:0.0015H:1.5V:0.05束團粒子數(shù)(1010)15e-/e+:1.3/3.2e-/e+:2.7/5.94.030RF頻率(MHz)500508.887476_352.2平均束流(mA)180e-/e+:1100/2600e-/e+:995/21610.00082.5束團數(shù)9 trains of 2 bunch5120185614 train of 2 bunch對撞點111(2)14環(huán)長(km)0.7683.0162.21.45+1.4726.66高能對撞機的參數(shù):ep,ppHERA (DESY) SpS(CERN)TEVATRON(Fermilab)LHC(CERN)Physics start date19921981Physics end date1990Particles collided PbPb最大束流能量(TeV):0.030p:0.820.3151.07.0 2.76TeV/u亮度1462101000碰撞時間間隔(ms)0.0963.80.3960.0250.125對撞角(mrad)000能散度(10-3)0.350.090.10.1束團長度(cm)20387.57.5束半徑(10-6m)1615亮度壽命(hr)10157-30106.7橫發(fā)射度(p rad-m)0.50.5b*（m）0.6(H)0.15(V)0.350.50.5束團粒子數(shù)(1010)10.50.0094RF