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Fuji Test Beam Line commissioning

Fuji Test Beam Line commissioning. Y.Sudo Univ. of Tsukuba. Room for test beam @Fuji B3. We can control currents of magnets from this room. Network is ready. position of magnets and monitors （ Fuji strait section ）. Target + rate monitor. Electron monitor(strip scintillator ). M1. M2.

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Fuji Test Beam Line commissioning

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  1. Fuji Test Beam Linecommissioning Y.Sudo Univ. of Tsukuba

  2. Room for test beam @Fuji B3 We can control currents of magnets from this room. Network is ready.

  3. position of magnets and monitors（Fuji strait section） Target + rate monitor Electron monitor(strip scintillator ) M1 M2 M3 M4 M5 M6 Trigger counter Beam shutter M7 10/11 at 18:00 Magnets are turned on with 3.0GeV/c. 10/12at 11:00 HER started injection of beam. lead-glass counter

  4. Beam shutter Beam shutter Concrete block Beam line This stage is able to move only vertically. Controller of the stage

  5. Result of last week and plan • HER 700mA, LER 1200mA • We observed beam ～30Hz. • Beam energy looks constant. • (according to oscilloscope) • When shutter is closed, rate of • the beam goes down 0Hz. • Plans of this week • Measurement of correlation • between beam intensity and • - HER current • - condition of the vacuum • correlation of intensity between upper side of shutter and lower side • Measurement of beam profile with electron monitor. • Adjustment of magnets • adjust currents of B2-4 between -1% and +1% Pulse shape of lead-glass counter

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