1 / 14

SPL development status

SPL development status. OUTLINE 1. Introduction 2. Up-to-date characteristics 3. On-going work 4. Planning and needs. SPL Working Group. 1. Introduction. CERN baseline scenario for a Neutrino Factory. Other applications of the proton driver. Approved physics experiments

zachery-shepherd
Télécharger la présentation

SPL development status

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SPL development status OUTLINE 1. Introduction 2. Up-to-date characteristics 3. On-going work 4. Planning and needs 1

  2. SPL Working Group 2

  3. 1. Introduction CERN baseline scenario for a Neutrino Factory 3

  4. Other applications of the proton driver • Approved physics experiments • CERN Neutrinos to Gran Sasso (CNGS): increased flux (~ ´ 2) • Anti-proton Decelerator: increased flux • Neutrons Time Of Flight (TOF) experiments: increased flux • ISOLDE: increased flux, higher duty factor, multiple energies... • LHC: faster filling time, increased operational margin... • Future potential users • “Conventional” neutrino beam from the SPL “super-beam” • Second generation ISOLDE facility (“EURISOL” -like) • ??? 4

  5. 2. Up-to-date SPL characteristics H- source, 25 mA 14% duty cycle CCDTL new SC cavities: b=0.52,0.7,0.8 Fast chopper (2 ns transition time) • RF system: • freq.: 352 MHz • ampli.: tetrodes and LEP klystrons 5

  6. Improvements w.r.t. the reference design • Improved transitions between sections  better beam stability • Doubled period length above 1.1 GeV  save 25 doublets, 8m, 3 MCHF • Improved error studies 100% beam radius < 20 mm,even for large error case (30 %) quad. radius reduced from 100 mm to 60 mm,(17rms)  save 2 - 3 MCHF • Reduced longitudinal emittance: 0.6  0.3 ºMeV improved design of the transfer line (drift length 230  175 m, bunch length 180  130 ps) • Use of beta=0.8 cavities up to the highest energy shorter tunnel (- 100 m), less cavities per klystron, better control of mechanical resonances 6

  7. Revised SPL beam specifications 7

  8. Accumulator-Compressor scheme for a Neutrino Factory 8

  9. Proton beam characteristics & influence on the rest of the complex p production Cycling rate of all the facility m burst length Distance between m bunches 9

  10. SPL sequencing and beam delivery Fast deflection kickers 10

  11. 3. On-going work 11

  12. Study of RT structures for the SPL front-end bl Alvarez Drift Tube Linac unsurpassable <20 MeV good but expensive for 20-120 MeV bl Cell Coupled Drift Tube Linac attractive solution for 20-150 MeV (a cold model is being designed) bl/2 Coupled-Cell Cavity (LEP1) better efficiency >110 MeV quadrupole quadrupole The final choice will depend on preferred apertures, RT final energy, etc. 12

  13. Intensity increase programme: possible location of the SPL front-end in the PS South Hall Þ´ 1.8 the flux to CNGS (provided upgrades are made to PSB, PS & SPS…) Þ “cheap” installation, giving benefits from SPL related hardware before the full machine is operational & shortening the final setting-up 13

  14. 4. Final comments Planning (guesses ...) and consequences • 2009: SPL commissioning with beam • 2005: Start of construction (civil engineering, preparation and test of SC cavities in SM18, etc.) • beginning of 2004: land acquisition and authorisation of construction • end 2003: decision Þ detailed design report for 2004 Þ increase the design effort at CERN & in interested laboratories by an order of magnitude before 2004 ! 14

More Related