Neutrino Factory Target Vessel Concept Update V. Graves Target Studies EVO June 12, 2012 Review – IPAC Paper Concept • Double-wall container for mercury containment • Inner.
Download ReportTranscript Neutrino Factory Target Vessel Concept Update V. Graves Target Studies EVO June 12, 2012 Review – IPAC Paper Concept • Double-wall container for mercury containment • Inner.
Neutrino Factory Target Vessel Concept Update V. Graves Target Studies EVO June 12, 2012 Review – IPAC Paper Concept • Double-wall container for mercury containment • Inner container is a hollow SS shell filled with He-cooled W beads – Actually provides triple-wall mercury containment in most areas • Issue is that it allows Hg to leak into a shielding container that is not part of the mercury system • Next step: move outer Hg containment wall inside W, segregate mercury containment and shielding functions Tungsten Beads 2 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Inner Tungsten Shielding Helium inlet Mercury Vessel Helium inlet Prior Concept Inner Tungsten Shielding Helium outlet Hg chamber vent line Hg jet inlet Beam pipe Mercury Vessel Helium outlet Hg drain Maintenance Handle Hg return 3 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Prior Concept Hg jet inlet Hg chamber vent line Beam pipe Helium inlet Helium outlet Hg return 4 Managed by UT-Battelle for the U.S. Department of Energy Hg drain Target Vessel Update 12 June 2012 Updated Concept – Separate Mercury Containment from Shielding Downstream Beam Window Double wall mercury containment inside tungsten shielding chambers 5 Managed by UT-Battelle for the U.S. Department of Energy Mercury Pool Target Vessel Update 12 June 2012 Segmented Mercury Interstitial Space Upstream View Before Hg Pool Upstream View From Hg Pool 6 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Mercury and Shielding Modules 7 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Double-Wall Supply & Return Piping • Mercury requires double containment outside the mercury equipment cell 8 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Double Containment Piping Mercury Drain Piping Pin-hole drains for leaks Nozzle Inlet 9 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Mercury Module Extraction 10 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Cryostat Modules • Now have three distinct modules within the first cryostat • Could combine the shielding modules into one 11 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012 Comments • Isolating the mercury module from the shielding makes remote handling simpler • Still a very complicated geometry and mechanically difficult to fabricate • How much heat energy does this new mercury module have to dissipate? 12 Managed by UT-Battelle for the U.S. Department of Energy Target Vessel Update 12 June 2012