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Front End Test Stand for Neutrino Factory: State-of-the-Art Beam Quality Analysis

Explore key aspects of beam production at a neutrino factory using innovative diagnostic tools and ionization cooling techniques to enhance beam quality.

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Front End Test Stand for Neutrino Factory: State-of-the-Art Beam Quality Analysis

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  1. NF activities at IC (part II) m. apollonio IPPP- Imperial College, London 1

  2. FETS • MICE • - NF Decay Rings • Key issues for Neutrino • Factory: • High-power target • Ionisation cooling • Rapid (large acceptance) acceleration • RF cavity (in magnetic field and superconducting) IPPP- Imperial College, London 2

  3. FETS (RAL) L. Jenner, S. Jolly, A. Kurup, D. Lee, K. Long, J. Pozimski, P. Savage • High Power (5MW) Pulsed Proton Source (50 Hz, 3 MeV) • H- Penning source: 65 kEV, 60 mA, 2ms pulse • LEBT: solenoidal channel • RFQ: 1st acceleration stage • (65 keV  3 MeV) • Chopper: prepares the beam for next acceleration (in bunches) • MEBT: Quadrupoles + RF bunching • diagnostic: conventional & non destructive laser: beam profile + emittance The design constraints and cost of a large facility like the neutrino factory, depends on the quality of the beam that is produced in the Front End. It is therefore essential to understand what the beam looks like after the chopper. The Front End Test Stand will be equipped with a set of conventional diagnostic devices (e.g. current transformers, Spectrometers, etc.) and newly developed, non-destructive laser based system to measure the beam profile and quality. IPPP- Imperial College, London 3

  4. MICE M Apollonio, P J Dornan, J Leaver, K Long, J Sedgbeer, G Barber, A Jamdagni, A Fish, A Dobbs, A Alekou • Demonstrate feasibility of ionisation coolingin a variety of initial momenta/emittances • cooling := emittance reduction • emittance := beam occupancy in transverse phase space (x,x’,y,y’) • need to be FAST: tm = 2.2 msec  use energy loss by ionisation • recover Pz by means of cavities m p Proton Cooling x’ x acceleration-RF LH2 absorber IPPP- Imperial College, London 4

  5. e2 e1 MICE: theory to practice … PId DETECTORS TRACKERS COOLING SECTION measure: eT before and after the channel (De to 0.1%) & transmission of the channel IPPP- Imperial College, London 5

  6. MICE @ RAL • IC active in: • tracker(s) • ISIS beam studies • re-design of new target • m-beam line IPPP- Imperial College, London 6

  7. Q1 Q2 Q3 D1 Q4 Q5 Q6 Q7 Q8 Q9 D2 MICE @ RAL vBEAMLINE: US/DS in place v DETECTORS/ MONITORS: in place and in DAQ chain v LINDE Refrigerator v MLCR xTARGET x SOLENOID: still in progress MLCR LINDE IPPP- Imperial College, London 7

  8. MICE @ RAL re-design of the Target (and control) IPPP- Imperial College, London 8

  9. Decay Rings for the NF • S. M. H. Alsari, M. Apollonio, M. Aslaninejad, P. Dornan, K .Long, S. Jolly, • Kurup, J. Pasternak, J. Pozimski, • P. Savage, D. Lee Pm = 25 GeV/c L=1608 m High b straights Decay Ring Twiss Parameters Resonance diagram with/without sextupole correction Tracking studies of Dynamic Aperture

  10. Decay Rings for the NF G4Beamline reproduction of the Decay Ring muons let decay electrons straight section matching section arc Dipole virtual detector planes QD QF IPPP- Imperial College, London 10

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