500 likes | 619 Views
Overview of the High Intensity Neutrino Source Jean-Paul Carneiro FNAL Accelerator Physics Department FNAL Accelerator Physics and Technology Seminar February 8 th 2007. Fermilab 8 GeV Superconducting H -minus LINAC. TRANSPORT LINE ~1 km. MI10. ACCELERATING SECTION ~678 meters.
E N D
Overview of the High Intensity Neutrino Source Jean-Paul Carneiro FNAL Accelerator Physics Department FNAL Accelerator Physics and Technology Seminar February 8th 2007
Fermilab 8 GeV Superconducting H-minus LINAC TRANSPORT LINE ~1 km MI10 ACCELERATING SECTION ~678 meters Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
Fermilab 8 GeV H-minus LINAC : Main parameters INITIALULTIMATE Linac Particles per macropulse : 1.56E+14 Linac Macropulse Width : 3 ms 1 ms Linac Pulse Repetition Rate : 2.5 Hz 10 Hz Linac Beam Power : 0.5 MW 2.0 MW CREDITS G. W. Foster (Editor) An 8-GeV Superconducting Linac Proton Driver http://protondriver.fnal.gov/SCRF_PD_v56.doc (2005) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
OUTLINE 1 / Accelerating Section : Code benchmarking TRACK (ANL, P. Ostroumov) ASTRA (DESY, K. Floettmann) 2 / Transport Line : Implementation into TRACK Start-to-end parallel simulations (~1.7 km) 3/ The 60 MeV Front End Setup (Meson Linac) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
PART I THE ACCELERATING SECTION Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
ACCELERATING SECTION : LAYOUT (P. Ostroumov, ANL) Z~4 m W~2.5 MeV ~16 m ~10 MeV ~60 m ~120 MeV ~140 m ~420 MeV ~230 m ~1.2 GeV ~678 m ~8.0 GeV Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK / ASTRA : BRIEF DESCRIPTION TRACK (P. Ostroumov, ANL) ASTRA (K. Floettmann, DESY) • Integration of Equation of motion by Runge-Kutta Method of Forth Order • id • Read arbitrary input distribution • id • Read 2D and 3D external E fields • id • Read 2D and 3D external B fields • Read only 2D external B fields • Do not handle RFQ’s • Handle RFQ’s • 3D space charge (Image Charge) • 3D space charge (Free Space) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
BENCHMARKING METHODOLOGY • Benchmark TRACK/ASTRA from RFQ to last accelerating cavity ( 674 m, 454 Cavities, 55 Sol., 117 Quads) • First Zero Current (10k particles) • Then for 43.25 mA (200k macro-particles, 3D Space Charge) 6 beam parameters : RMS Trans. Size, RMS Trans. Emittance RMS Bunch Length, RMS Long. Emittance Energy, RMS energy spread Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK / ASTRA : ZERO CURRENT KINETIC ENERGY Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~2 % TRACK / ASTRA : ZERO CURRENT RMS ENERGY SPREAD Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~2 % TRACK / ASTRA : ZERO CURRENT RMS BUNCH LENGTH Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~0.7 % TRACK / ASTRA : ZERO CURRENT RMS LONG. EMITTANCE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~10 % ~1 % TRACK / ASTRA : ZERO CURRENT RMS ENVELOPE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~0.8 % ~0.8 % TRACK / ASTRA : ZERO CURRENT RMS TRANSVERSE EMITTANCE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
UNITS TRACK ASTRA KINETIC ENERGY [MeV] 7971 7973 (+0.02 %) RMS ENERGY SPREAD [keV] 2630 2565 (-2.47 %) RMS BUNCH LENGTH [mm] 0.251 0.256 (+1.99 %) RMS NORM. EMIT Z [keV-mm] 643 648.2 (+0.73 %) RMS SIZE X [mm] 1.71 1.88 (+9.94 %) RMS SIZE Y [mm] 0.98 0.97 (-1.02 %) RMS NORM. EMIT X [mm-mrad] 0.263 0.265 (+0.76 %) RMS NORM. EMIT Y [mm-mrad] 0.258 0.260 (+0.77 %) TRACK / ASTRA : ZERO CURRENT Résumé Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK / ASTRA : 3D Uniform Ellipsoidal Bunch 3D UNIFORM ELLIPSOID 500k macro-particules (TRACK/ASTRA) CREDITS : T. Wangler, RF Linear Accelerators, p. 277. Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
Transverse Space Charge Fields Longitudinal Space Charge Fields TRACK / ASTRA : 3D Uniform Ellipsoidal Bunch
~8 % TRACK / ASTRA : 43.25 mA RMS ENERGY SPREAD Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK / ASTRA : 43.25 mA RMS BUNCH LENGTH Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~10 % TRACK / ASTRA : 43.25 mA RMS LONG. EMITTANCE RMS LONG. EMITTANCE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~3 % ~9 % TRACK / ASTRA : 43.25 mA RMS TRANSVERSE EMITTANCE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
~6 % ~1 % TRACK / ASTRA : 43.25 mA RMS ENVELOPE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK / ASTRA : 43.25 mA Résumé UNITS TRACK ASTRA KINETIC ENERGY [MeV] 8013 8009 (-0.04 %) RMS ENERGY SPREAD [keV] 2564 2773 (+8.15 %) RMS BUNCH LENGTH [mm] 0.345 0.345 RMS NORM. EMIT Z [keV-mm] 857 943 (+10.03 %) RMS SIZE X [mm] 1.76 1.87 (+6.25 %) RMS SIZE Y [mm] 1.32 1.34 (+1.52 %) RMS NORM. EMIT X [mm-mrad] 0.453 0.493 (+8.83 %) RMS NORM. EMIT Y [mm-mrad] 0.549 0.566 (+3.09 %) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
CONCLUSION : TRACK / ASTRA BENCHMARKING TRACK / ASTRA Agreement Within 10% (Zero Current and 3D Space Charge) ``Benchmarking of simulation codes for high intensity hydrogen ion linacs’’ submitted to Journal of Instrumentation. Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
LCLS INJECTOR : ASTRA / PARMELA RF GUN + SOLENOID SOLENOID L01 L02 9.4 M Jean-Paul Carneiro CALCULATIONS OF THE LCLS INJECTOR USING ASTRA
LCLS INJECTOR : ASTRA / PARMELA Jean-Paul Carneiro CALCULATIONS OF THE LCLS INJECTOR USING ASTRA
EXIT L02 (8.42 M) – RESUME (0.5 %) (6%) (10%) (2 %) (10%) (2 %) (2%) Jean-Paul Carneiro ASTRA SIMULATIONS OF THE LCLS INJECTOR
PART II THE TRANSPORT LINE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
8 GeV TRANSPORT LINE TO MI: LAYOUT (D. Johnson et al., FNAL) ~1 km (8 GeV, Space Charge Off) Matching + Collimation Stripping foil ARC 1 ARC 2 DEBUNCHER CAVITY RT-SUPERSTRUCTURE 17 CELL (T. Khabiboulline, FNAL-TD) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRANSVERSE PARTICLE DISTRIBUTION AT THE FOIL (TRACK) No Collimator With Collimators Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
LONGITUDINAL PHASE SPACE AT THE FOIL (TRACK) Debuncher OFF Debuncher ON Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRANSPORT LINE : MAD SIMULATIONS From D. Johnson (FNAL) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRANSPORT LINE : TRACK / ELEGANT (M. Borland, ANL) [m] DISPERSION Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRANSPORT LINE : TRACK / ELEGANT BETA FUNCTION Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRANSPORT LINE : TRACK / PARALLEL TRACK (J. Xu, ANL) Acc. Section (3D Space Ch.) Transport Line (No Space Charge) ~10 H 40 mn ~1 H 18 mn Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK START-TO-END SIMULATIONS TRANSV. RMS EMITTANCE Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
HINS longitudinal phase space TRACK START-TO-END SIMULATIONS RMS ENERGY SPREAD Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK SIMULATIONS : CONCLUSION & NEXT STEPS Start-to-End simulations (from RFQ to stripping foil) implemented into TRACK The 1.7 km beamline runs on parallel (64 CPU) at ANL-BlueGene computer Takes 1H18 mn to perform, 200k particules. NEXT STEPS IN HINS SIMULATIONS 1/ Halo Studies (1M to 80M particle distribution on 64 to 256 CPUs) 2/ Jitter + Misalignment Studies (up to 100 CPU on ANL-JAZZ computer) 3/ Implementation H-minus stripping into TRACK (Magnetic, Residual Gas and Blackbody radiation) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
TRACK SIMULATION : BLACKBODY STRIPPING CREDITS C. Hill “Preliminary Notes: H- Ion Stripping in Transport by Thermal Photons” FERMILAB-Internal Memorandum (Dec. 2004) – unpublished - H. C. Bryant and G. H. Herling “Atomic physics with a relativistic H- beam” Journal of Modern Optics, January 2006 W. Chou “8 GeV H- Ions : Transport and Injection” PAC05 Hill’s Equation of Total Loss per Unit Length : with Numerical Application : 300 K : 1/L=7.86E-7 m-1 × 1.56E14 p/sec × 1.28E-9 J ≈ 0.15 W/m (1 Hz) 80 K : 1/L=2.7E-10 m-1 × 1.56E14 p/sec × 1.28E-9 J ≈ 5.3E-5 W/m (1 Hz) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
PART III THE MESON LINAC Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON LINAC : LAYOUT (~60 MeV, ~48 m) SQA Quads “Old 8 GeV to MR line” Effective Magnetic Length ~45 cm Cooling ring dipole Effective Magnetic Length ~1.3 m Main Ring Trim Quads Effective Magnetic Length ~35 cm Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON LINAC : TRACK SIMULATIONS Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON HALL : SOUTH VIEW Capture Cavity II Cave Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON HALL : NORTH VIEW Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON LINAC : MODULATOR, PULSE TRANSFORMER, KLYSTRON Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON LINAC : KLYSTRON, RF CONTROL SYSTEM Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
FERMILAB Proton Source + LEBT (H. Piekarz, C. Schmidt, D. Moehs) Installed in MS6 building ~15 mA, 66 µs, 15 Hz Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
FERMILAB magnetron H- source (D. Moehs) ~20 mA, 3 ms, 1 Hz (January 2007) Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
MESON LINAC : CONCLUSION Modulator, Pulse Transformer and Klystron installed into Meson Hall Expected delivery time for RFQ : Summer 2007 Expected first 2.5 MeV beam : Winter 2007 Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07
CONCLUSION and ACKNOWLEDGMENTS Start-to-End simulation of the 8 GeV H-minus linac implemented into TRACK Jitter Studies and impact into stripping efficiency and MI losses (ESME ?) Benchmarking the code with experimental datas (Meson Linac) Acknowledgments G. Apollinari (FNAL), S. Aseev (ANL), M. Borland (ANL), K. Floettmann (DESY), B. Foster (ex-FNAL), I. Gonin, C. Hill (FNAL), D. Johnson (FNAL), T. Khabiboulline, D. Moehs (FNAL), B. Mustapha (ANL), P. Ostroumov (ANL), H. Piekarz (FNAL), C. Schmidt (FNAL), V. Shiltsev (FNAL), B. Webber (FNAL), D. Wildman (FNAL), J. Xu (ANL). Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8th 07