THAM7Y01
ESS, Lund, Sweden
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THAM7Y01 |
Beam-Material Issues for Instrumentation in a 5 MW Monolith | |
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| With the European Spallation Source (ESS) striving to become the world’s most powerful spallation neutron source, the proton accelerator driving the spallation process at ESS has to be very powerful as well. The 5MW/2GeV proton beam delivered from a superconducting linear accelerator sets quite demanding requirements on the beam diagnostic system located in the proton beam instrumentation plug (PBIP). This system is observing beam properties and contains multi-wired grids for beam profile monitoring, thermocouples and secondary emission blades for aperture monitoring and a luminescent coating for imaging the beam spot on the target. These devices are critical for detection of any missteering of the beam and consequently for machine protection. Since the components are exposed to high doses of radiation, radiation damage is to be expected and it is challenging to ensure full functionality of the diagnostic system over a set period of runtime. Material choices for these components in the PBIP with respect to lifetime in a radiation field and operational criteria will be presented. | ||
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Slides THAM7Y01 [8.115 MB] | |