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CERN, 29.January 2009Uli Raich AB/BI 3 MeV instrumentation commissioning U. Raich Linac-4 Beam Coordination Committee 10.1.2013
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2 BPM SLITS BCT SEM Grids H+V SEM Grid H BSM Halo Monitor
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Instruments to be commissioned BPMs: –First tests have been made on Linac-2 –ToF completely untested yet –Problems seen in intensity measurements (signal is lower than predicted by simulations) –Time estimated for commissioning: 2 months, can be done parasitically without disturbing other measurements –Incompatible with emittance measurements CERN, 29.January 2009Uli Raich AB/BI
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Emittance meter Emittance Meter: Only movements have been tested Experience with 45 keV emittance meter should help 1 week commissioning before measurements can be made Possible problems: –alignment of the slit –heating CERN, 29.January 2009Uli Raich AB/BI
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Bunch Shape Measurements BSM: Device is fully mounted including electron multiplier Has been tested without beam as far as possible Commissioning needs: 2 weeks with presence of colleagues from INR Focusing of secondary electrons needs to be adjusted RF tests not yet done CERN, 29.January 2009Uli Raich AB/BI
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Transformers BCTs: Tests have been made in beam with 45 keV protons Calibration needs to be improved Comparison measurements Faraday Cup / Transformer at 45 keV Estimated commissioning time: 1 week but parasitic measurements are possible any time Incompatibility with emittance meter CERN, 29.January 2009Uli Raich AB/BI
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Halo Monitor Halo monitor: Can only really be tested with chopper Some preliminary tests may be possible before To be discussed with M. Hori CERN, 29.January 2009Uli Raich AB/BI
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Laser stripping Profile measurements using laser stripping: Only possible on H- beams with reasonable intensity Laser can be borrowed from Rutherford Lab. Need to know if tests can be foreseen until May 2013 Can be run parasitically without disturbing other measurements Incompatible with emittance meter CERN, 29.January 2009Uli Raich AB/BI
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Spectrometer Needs spectrometer SEMGrids. Has been done at 45 keV 1-2 days should be sufficient to make the SEMGrids work CERN, 29.January 2009Uli Raich AB/BI
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