super-beam work package

EuroNu CERNFebruary 5, 2008

Marco Zito

Super-Beam work package

Marco ZitoDapnia-Saclay

On behalf of the SB w2 team

EuroNu 5/2/2008

Thanks to M. Dracos for providing materials!


Marco Zito

Outline

• About this workpackage• Focusing on the most challenging/crucial problems :

– The target - talk by C. Densham

– The collector

– The target/collector integration

– Neutrino beam simulation

• Participating institutes: IN2P3, CEA/IRFU(previously Dapnia), CCLRC, Cracow U. of Technology

• Deliverables and milestones -> a CDR for the Superbeam!


Marco Zito

What Euroν DS Superbeam is about-1

• Consider as baseline the SPL to Frejus concept

MEMPHYS

Far detector feasibility, excavation, engineering is covered by the Laguna DS


Marco Zito

What Euroν DS Superbeam is about-2

• Proton driver and target : many issues in common between Super-Beam and NF

• Decide to join forces and tackle these problems in this WP

• The NF WP will focus on the muon front-end• The conclusion of this WP will then be incorporated in

the SB and NF CDR’s


Marco Zito

SPL

• Important and very positive recent news (see next slides from R. Garoby and F. Gerigk)

• CDR for SPL available • Ongoing work by dedicated team• Refinements, R/D, further studies in other frameworks

(HIPPI, IA …)• Changes to this proton-driver design only from the

optimization of the target and collection or from the physics and detector studies


Marco Zito

CERN-AB-2007-014-PAF


Marco Zito


Marco Zito

Collector

• Main challenges:• design of a high current pulsed power supply (300

kA/100 μs/50 Hz), • cooling system in order to maintain the integrity of

the horn despite of the heat amount generated by the energy deposition of the secondary particles provided by the impact of the primary proton beam onto the target,

• definition of the radiation tolerance,• integration of the target.


Marco Zito

CollectorsCollectors

horns

Or solenoid

In operation

completed

built

MiniBooNE

CNGS K2K

(SB)

NUMI

In operation

M. Dracos


Marco Zito

Focusing system: magnetic horn

Protons

Current of 300 kA

To decay channel

Hg Target B1/R

B = 0

M. Dracos


Marco Zito

Horn prototype ready for tests M. Dracos


Marco Zito

The power supply

Due to the high price go to a modular system and increase small by small the current

M. Dracos


Marco Zito

Neutrino Beam simulation

• Needed to optimize the target, collector, decay tunnel• Use modern tools (GEANT 4) and recent data (HARP)• Input to the physics work package for the performance

evaluation• Need to develop in synergy with similar studies in

existing SB and in the IDS community


Marco Zito

"Physics" studies to be restarted"Physics" studies to be restarted

energy depositionz (cm)

P (

kW

)

z (cm)corne

corne 2

M. Dracos


Marco Zito

Sensitivity 3.5GeV

sin221310-110-210-3

m2

23

10-3

10-2

10-4

90%CL95%CL99%CL

Minimum:13= 1.2°(90%CL)

PreliminaryA.Cazes thesis


Marco Zito

Deliverables

Deliverable Delivery date (months)

Requirements for proton driver

6

Target and Collection design report

30

Target and Collection integration

36

Beam characteristics 36

Final report 48


Marco Zito

Milestones

Milestone Delivery date (months)

Proton driver report 12

Prel. Design of Target and Collection

24

1st Target and Collection integration drawings

24

1st Est. of Nu Beam Intensity

24

Final Target and Collection integration drawings

36

Design of target station 40

Report on Nu Beam Intensity

42


Marco Zito

Conclusions

• SuperBeam work package of the Euroν DS is focusing on the key issues for this project

• The SPL to Fréjus project is the baseline• Excellent news from SPL side• Feasibility and conceptual solutions for the target and

collector (horn) will be studied• A strong European collaboration is ready to contribute to

this field

super-beam work package

Documents

physics work package

primary proton beam

spl available ongoing

collector horn

spl sidefeasibility

projectthe spl

proton driver

protondriver design