Manx, a 6-d muon Cooling Experiment macc muons, Inc

MANX, a 6-D Muon Cooling Experiment

• MACC

• Muons, Inc.

• www.muonsinc.com

MANX Collaboration

MANX LOI Synopsis

MANX Motivations

Muons, Inc. Background

• Idea of gaseous energy absorber enables new technology to generate high accelerating gradients for muons by using the high-pressure region of the Paschen curve.

• Measurements by Muons, Inc. and IIT at FNAL have demonstrated that hydrogen gas suppresses RF breakdown

• H2 performs 6 X better than He - gradients high enough to overcome dE/dx energy loss
• H2 has better heat capacity, viscosity and IC effectiveness

• Concept of a cooling channel filled with a continuous homogeneous absorber to provide longitudinal cooling by exploiting the path length correlation with momentum in a magnetic channel with positive dispersion. (HCC)

• HCC concept can be extended to the case of magnetic fields that change amplitude along the z-axis (the beam direction). For MANX, the beam momentum can change and the conditions for 6D cooling can still be met as a beam slows down in a continuous absorber.

Ionization cooling issues

HCC theory evolution

HCC Applications

• As precooler:

• absorber, no RF.

MANX HCC Design Evolution

Prototype Coils

• First HCC coil manufacture..

Correction coils

Feasibility of RF in MANX

R & D Toward MANX/HCC Cooling..

• Detectors:

• Studies at FNAL by for cryo operation of scintillation fibers (M. Hu)
• New detector proposals:
• Multi-Pixel Photon Counters For Particle Detection Systems (new phase I 2008 proposal submitted to DOE SBIR)
• Fast timing detectors ~ few picosecs resolution with U Chicago

• RF

• MTA beam test is scheduled for High pressure (GH2) RF at FNAL

• HCC Ring Tests

• Supported by FNAL and Muons, Inc. PH II

• Simulations

• Continue studies of HCC optimization
• Extension to G4BL for resolutions, systematics and controls studies
• “MANX “0th” order study MANX with the MICE detectors.
• MANX extension to “”G4MICE” for complete reconstruction

MANX Near Future

• FNAL has put muons on the agenda

• FNAL MTA beam test is a priority

• HCC theory is being simulated and refined:

• RF studies informing HCC MANX design
• New insights into isochronicity (gamma-t) are being investigated and exploited

• HCC coil tests planned and implemented

• Serious engineering concerns on MANX HCC being addressed

• Muons, Inc. has joined MICE – natural collaborators, many similar problems (detectors/trackers/part. I.D./data acq)