Muon Collider 2011 Workshop

Jun 27-July 1 in Telluride, CO

Gollwitzer & Nagaitsev presented

Attending: Ankenbrandt, Lebedev, Pasquinelli, Popovic,

and another 30 Fermilab

Program• Plenary Sessions• Parallel Sessions– Physics and Detectors– Accelerators

• Protons– Task Force, Upgrade Specifics

• Target• Collection• Cooling• Acceleration• Collider Ring• Machine Detector Interface

• https://indico.fnal.gov/conferenceOtherViews.py?view=standard&confId=4146

Task Force Presentation (1)• Project X & Muon Accelerator Program • Feasibility path to Neutrino Factory/Muon

Collider• Project X upgrade– 4MW proton beam at 8GeV

• Reformatting of beam– Pulsed Linac beam out of Project X– 15Hz; single bunch of <3ns bunch length

Task Force Presentation (2)• Project X upgrade– Average beam current 5mA– Peak beam current 10mA– Pulse linac operation rep rate 15Hz– Pulsed linac duty factor 10% (pulse length of

6.7ms)• Reformatting of beam– Rings• Accumulator and Compressor• ~200m with h=8

– Delivery trombone system to form “single bunch”

Project X Solution(1)• Details of Project X• Impact of proposed upgrade– Front end: no impact – CW linac: depends upon 3GeV program

• Coupler optimization for running 5mA (10% duty cycle) and another possible current (90% duty cycle)

– Pulsed linac: straight forward• More RF power (higher current)• Upgrade power couplers (higher current)• More cryo capacity (longer pulse)

– Conventional facilities: started investigating• More water cooling• More Klystrons (more floor space)

30%

13%

15%

23%

6%

13%Linac / Cryomodules

RF Power

Cryogenics

Conventional Facilities

MI / RR Modifications

Other (6 Categories)

Project X Solution(2)• Expect to “reuse” >75%

of the cost of Project X• Pulsed Linac Couplers– 2KW to 15KW

• Pulsed RF Power– 125KW/cavity• Klystrons available

• Cryo capacity for Pulsed Linac: increase by 30%• CW Linac Coupler: setting optimization for

future 3GeV and pulsed linac average currents