1. Beam Dynamics Studies of the HIE-ISOLDE Superconducting LINAC at CERN
High Intensity and Energy: HIE-ISOLDE
Matthew A. Fraser – University of Manchester, Cockcroft Institute and CERN (EN-STI-RBS)
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

2. ISOLDE: An ISOL RIB Facility
HIE-LINAC upgrade of REX-ISOLDE
To take beams to above 10 MeV/u
Post-Acceleration
From 5 keV/u up to 2.8 MeV/u
Low Energy Experimental Area
Beam Energy at 60 keV
M.A. Fraser Manchester Particle Physics Group Xmas Meeting - 5th January 2010

3. Introduction to HIE-ISOLDE
> 10 MeV/u (β > 14.5 %)
HIE-ISOLDE aims to improve:
Quality
Intensity
Energy – SC Post-accelerator
BEAM DIRECTION
High Energy
Section
Low Energy Section
1.2 MeV/u (β = 5.4 %)
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

4. What Have I Been Up To? JUAS 2009
January
February
March
April
May
June
July
August
September
October
November
December
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

5. Numerical Beam Dynamics Simulations
What Have I Been Up To?
Numerical Beam Dynamics Simulations
2009
January
February
March
April
May
June
July
August
September
October
November
December
Augmented first-order BD simulations with realistic fields of high-β QWR and solenoid.
Parametric Resonance / Beam Steering
TRACK (argonne national lab)
Benchmarked TRACK with my own code.
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

6. Analytical Beam Dynamics
What Have I Been Up To?
Analytical Beam Dynamics
2009
January
February
March
April
May
June
July
August
September
October
November
December
HIE-ISOLDE High-β QWR
Derived higher-order transit time factors for a two gap resonator (J. Delayen Formalism):
Energy Gain to First-order (constant velocity):
Energy Gain to Second-order (small perturbation of velocity):
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

7. What Have I Been Up To?
Particle Accelerator Conference, PAC 09,
Vancouver
2009
January
February
March
April
May
June
July
August
September
October
November
December
2009
January
February
March
April
May
June
July
August
September
October
November
December
Won a grant from the conference organisers:
“Beam Dynamics Studies of the HIE-ISOLDE Linac at CERN”
Visit of ISAC-II post-accelerator at TRIUMF:
HIE-ISOLDE International Technical Review Meeting
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

8. What Have I Been Up To?
Error and Misalignment Study of the High Energy Section of the HIE-LINAC
2009
January
February
March
April
May
June
July
August
September
October
November
December
Undertook a BD study to specify the error and misalignment tolerances for the linac.
misalignment
field error and jitter
mismatch of beam at injection
steering correction routine
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

9. Superconducting Radiofrequency Conference, SRF 09, Berlin.
What Have I Been Up To?
Superconducting Radiofrequency Conference, SRF 09, Berlin.
2009
January
February
March
April
May
June
July
August
September
October
November
December
Won a grant from conference organisers
tutorials in rossendorf/dresden (FZD)
presented geometrical modifications to the QWR to improve the symmetry of the em fields on the beam axis:
“compensation of transverse field asymmetry in the high-beta quarter-wave resonator of the hie-isolde linac at cern”
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

10. What Have I Been Up To? Submitted Two CERN BE Dept. Notes
2009
January
February
March
April
May
June
July
August
September
October
November
December
Second-order Transit Time Factors for a Two Gap Resonator.
Misalignment and Error Studies for the High Energy Section of the HIE-ISOLDE Linac
HIE-ISOLDE made an OFFICIAL PROJECT at CERN, 12th November 2009!
Holiday in Argentina!
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010

11. What Will I do in 2010?
Beam dynamics study (longitudinal) of NC structures:
Complementary measurements on the REX-ISOLDE beam line:
bead-pull measurement of the ih-structure
longitudinal emittance measurement
High-beta Cavity CERN, WHEN the LHC works!
Low-beta Cavity Design
Deceleration scheme in low energy section of HIE-LINAC
M.A. Fraser Manchester Particle Physics Xmas Group Meeting - 5th January 2010