| Paper |
Title |
Page |
| WEP2PO030 |
A 4D Emittance Measurement Device for the 870 keV HIPA Injection Line |
329 |
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- R. Dölling, M. Rohrer
PSI, Villigen PSI, Switzerland
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A 4D emittance measurement device has recently been installed in PSI's high intensity proton accelerator (HIPA) after the acceleration tube of the Cockcroft-Walton pre-accelerator. A pinhole collimator is moved 2D transversally and at each collimator position, the resulting beamlet is downstream scanned 2D by vertically moving over it a horizontal linear array of small electrodes. The properties of this setup and the intended use are discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-HB2018-WEP2PO030
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| WEP2PO032 |
A Secondary Emission Monitor in the SINQ Beam Line for Improved Target Protection |
334 |
| |
- R. Dölling, M. Rohrer
PSI, Villigen PSI, Switzerland
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A 4-strip secondary-emission monitor (SEM) has been installed in the beam line to the SINQ neutron source to detect irregular fractions of the megawatt proton beam which might damage the spallation target. We discuss the estimated performance of the monitor as well as its design and implementation.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-HB2018-WEP2PO032
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| WEP2PO033 |
A Test of Stripper Foil Lifetime in PSI's 72 MeV Proton Beam |
338 |
| |
- R. Dölling, R. Dressler
PSI, Villigen PSI, Switzerland
- L. Calabretta
INFN/LNS, Catania, Italy
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A test of the lifetime of an amorphous carbon foil of ~79 ug/cm2 was performed at PSI in the transfer line between Injector 2 and Ring cyclotron during the regularly beam production. The 72 MeV ~1.7 mA proton beam had a central current density of ~2.8 mA/cm2. Two spots on the foil were irradiated alternatively with in total three fractions of 17, 52 and 119 mAh. Foil thickness was measured before and after irradiation at several positions via the energy loss of alpha-particles from a 241Am source in the foil. We discuss the observed foil damage as well as the experimental setup, the estimation of the beam parameters and practical boundary conditions.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-HB2018-WEP2PO033
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| Export • |
reference for this paper using
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※ LaTeX,
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