overview of the high intensity neutrino source jean-paul carneiro

Overview of the High Intensity Neutrino Source

Jean-Paul Carneiro

FNAL Accelerator Physics Department

FNAL Accelerator Physics and Technology SeminarFebruary 8th 2007

Fermilab 8 GeV Superconducting H-minus LINAC

Jean-Paul Carneiro FNAL Accelerator Physics and Technology Seminar, Feb 8 th 07

MI10

ACCELERATING SECTION

~678 meters

TRANSPORTLINE~1 km

Fermilab 8 GeV H-minus LINAC : Main parameters


G. W. Foster (Editor) An 8-GeV Superconducting Linac Proton Driverhttp://protondriver.fnal.gov/SCRF_PD_v56.doc

(2005)

CREDITS

INITIAL ULTIMATE

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


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)


PART I

THE ACCELERATING SECTION

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


ASTRA (K. Floettmann, DESY)

TRACK (P. Ostroumov, ANL)

• 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

• 3D space charge (Free Space)

• 3D space charge (Image Charge)


TRACK / ASTRA : BRIEF DESCRIPTION

• Handle RFQ’s • Do not handle RFQ’s

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. EmittanceEnergy, RMS energy spread


TRACK / ASTRA : ZERO CURRENT

KINETIC ENERGY


~2 %

RMS ENERGY SPREAD



~2 %

RMS BUNCH LENGTH



~0.7 %

RMS LONG. EMITTANCE



~10 %

~1 %

RMS ENVELOPE



~0.8 %

~0.8 %

RMS TRANSVERSE EMITTANCE


TRACK / ASTRA : ZERO CURRENT Résumé


(+0.02 %)

0.970.98[mm]RMS SIZE Y

ASTRATRACKUNITS

[mm-mrad]

[mm]

[keV-mm]

[mm]

[keV]

[MeV] 79737971KINETIC ENERGY

0.2650.263RMS NORM. EMIT X

1.881.71RMS SIZE X

648.2643RMS NORM. EMIT Z

0.2560.251RMS BUNCH LENGTH

25652630RMS ENERGY SPREAD

RMS NORM. EMIT Y [mm-mrad] 0.258 0.260

(-2.47 %)

(+1.99 %)

(+0.73 %)

(+9.94 %)

(-1.02 %)

(+0.76 %)

(+0.77 %)

TRACK / ASTRA : 3D Uniform Ellipsoidal Bunch


3D UNIFORM ELLIPSOID500k macro-particules (TRACK/ASTRA)

CREDITS : T. Wangler, RF Linear Accelerators, p. 277.

TRACK / ASTRA : 3D Uniform Ellipsoidal Bunch

Transverse Space Charge FieldsLongitudinal Space Charge Fields

RMS ENERGY SPREAD


~8 %

TRACK / ASTRA : 43.25 mA



RMS BUNCH LENGTH


RMS LONG. EMITTANCE

~10 %


RMS LONG. EMITTANCE


~3 %

~9 %


RMS TRANSVERSE EMITTANCE


~6 %

~1 %


RMS ENVELOPE

(-0.04 %)

1.341.32[mm]RMS SIZE Y

ASTRATRACKUNITS

[mm-mrad]

[mm]

[keV-mm]

[mm]

[keV]

[MeV] 80098013KINETIC ENERGY

0.4930.453RMS NORM. EMIT X

1.871.76RMS SIZE X

943857RMS NORM. EMIT Z

0.3450.345RMS BUNCH LENGTH

27732564RMS ENERGY SPREAD

TRACK / ASTRA : 43.25 mA Résumé



(+8.15 %)

(+10.03 %)

(+6.25 %)

(+1.52 %)

(+8.83 %)

(+3.09 %)

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 CALCULATIONS OF THE LCLS INJECTOR USING ASTRA

Linac CenterLine

LCLS Injector Parts

QE02

Transverse RFCavity

WS2/OTR5/BPM8

OTR6 WS4

BPM7/WS1/OTR4

CM3/BPM4/OTR2

OTR3,BPM6

OTR1

BPM2CM2

BPM7/OTR7

Valve, V3

SC4

WS3/CM4

Sector 20-8BSector 20-8A BeamStopper

SC2

S2

SC3

SC5

BPM9

RF Gun

L0 Accelerators

SC7

EO2/SC6/BPM5

BPM3

Valve, V4

SC8

SC9V

SC9H SC10

5.00m.

Scale:

RadiationShielding

BPM11/OTR9

BPM10

QE01

QE03QE04

StraightAhead

Spectrometer

Tune-upDump/

Faraday Cup

OTR10/BPM12/CM6

SC11

OTR11/BPM13

QM01

QM02

QB

QM03&QM04

Valve, V5

Valves,V6&V7

ValveV8

ValveV9

ValveV10

D. DowellX2494

April 4, 2002

L01

L02

SOLENOIDRF GUN + SOLENOID

9.4 M

LCLS INJECTOR : ASTRA / PARMELA

Jean-Paul Carneiro CALCULATIONS OF THE LCLS INJECTOR USING ASTRA

0 2 4 6 8 100

1

2

3

4

5

Z [m]

RM

S N

orm

. Em

it. X

[mm

-mra

d]

PARMELAASTRA

0 2 4 6 8 100

0.5

1

1.5

2

2.5

Z [m]

RM

S S

ize

X [m

m]

PARMELAASTRA

LCLS INJECTOR : ASTRA / PARMELA

Jean-Paul Carneiro ASTRA SIMULATIONS OF THE LCLS INJECTOR

EXIT L02 (8.42 M) – RESUME

UNITS ASTRA PARMELA

MOMEMTUM [MeV/c] 149.14 149.96

RMS ENERGY SPREAD [%] 0.18 0.17

RMS SIZE X [mm] 0.32 0.29

RMS NORM. EMIT X [mm-mrad] 0.98 0.96

RMS SIZE Y [mm] 0.32 0.29


RMS BUNCH LENGTH [mm] 0.90 0.88

(0.5 %)

(6%)

(10%)

(2 %)

(10%)

(2 %)

(2%)


PART II

THE TRANSPORT LINE

8 GeV TRANSPORT LINE TO MI: LAYOUT (D. Johnson et al., FNAL)


Stripping foil

ARC 1 ARC 2

Matching+

Collimation

DEBUNCHER CAVITYRT-SUPERSTRUCTURE

17 CELL

(T. Khabiboulline, FNAL-TD)

~1 km (8 GeV, Space Charge Off)

TRANSVERSE PARTICLE DISTRIBUTION AT THE FOIL (TRACK)


No Collimator With Collimators

LONGITUDINAL PHASE SPACE AT THE FOIL (TRACK)


Debuncher OFF Debuncher ON

TRANSPORT LINE : MAD SIMULATIONS


From D. Johnson (FNAL)

TRANSPORT LINE : TRACK / ELEGANT (M. Borland, ANL)


DISPERSION

[m]

TRANSPORT LINE : TRACK / ELEGANT


BETA FUNCTION

~10 H 40 mn

~1 H 18 mn

Acc. Section (3D Space Ch.)

Transport Line (No Space Charge)

TRANSPORT LINE : TRACK / PARALLEL TRACK (J. Xu, ANL)


TRACK START-TO-END SIMULATIONS


TRANSV. RMS EMITTANCE

TRACK START-TO-END SIMULATIONS


HINS longitudinal phase spaceRMS ENERGY SPREAD

http://home.fnal.gov/~carneiro/hins_long_phase_space.avi

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 computerTakes 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)

TRACK SIMULATION : BLACKBODY STRIPPING


H. C. Bryant and G. H. Herling “Atomic physics with a relativistic H- beam” Journal of Modern Optics, January 2006

CREDITS C. Hill “Preliminary Notes: H- Ion Stripping in Transport by Thermal Photons” FERMILAB-Internal Memorandum (Dec. 2004) – unpublished -

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)

W. Chou “8 GeV H- Ions : Transport and Injection” PAC05


PART III

THE MESON LINAC

MESON LINAC : LAYOUT (~60 MeV, ~48 m)


Cooling ring dipoleEffective Magnetic Length ~1.3 m

SQA Quads “Old 8 GeV to MR line”Effective Magnetic Length ~45 cm

Main Ring Trim QuadsEffective Magnetic Length ~35 cm

MESON LINAC : TRACK SIMULATIONS



MESON HALL : SOUTH VIEW

Capture Cavity II Cave


MESON HALL : NORTH VIEW


MESON LINAC : MODULATOR, PULSE TRANSFORMER, KLYSTRON


MESON LINAC : KLYSTRON, RF CONTROL SYSTEM


FERMILAB Proton Source + LEBT (H. Piekarz, C. Schmidt, D. Moehs)

Installed in MS6 building~15 mA, 66 µs, 15 Hz


FERMILAB magnetron H- source (D. Moehs)

~20 mA, 3 ms, 1 Hz(January 2007)

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

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).

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)

overview of the high intensity neutrino source jean-paul carneiro

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