1 / 6

MICE Target Source Calculations

MICE Target Source Calculations. Tom Roberts Illinois Institute of Technology March 30, 2004. Outline of Computation. Select beamline tune, determine an enclosing target acceptance (P min , P max , x’ min , x’ max , y’ min ,y’ max )

jeremy-good
Download Presentation

MICE Target Source Calculations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MICE Target Source Calculations Tom Roberts Illinois Institute of Technology March 30, 2004

  2. Outline of Computation • Select beamline tune, determine an enclosing target acceptance (Pmin, Pmax, x’min, x’max, y’min,y’max) • Use LAHET, MARS, and g4beamline (Geant4) to determine pi+ that enter the target acceptance per proton on target • Use g4beamline to generate 20M pi+ into the target acceptance, and determine how may good mu+ they produce. • Model the ISIS beam and target to determine the rate of protons on target. • Put the above values together to determine the absolute rate of good-mu+/millisecond.

  3. Target Acceptance (JAN04 tune)

  4. Target Particle Production Particles into acceptance per millisecond of good target.

  5. Model of Target and ISIS Beam * Estimate of: (beam density at target)/(average beam density)

  6. Results JAN04 tune, 6π mm-rad input emittance, no LH2, no RF. • Major Variables: • Beamline tune can vary rates by a factor of ~6 (tuning for lower input emittance yields higher good mu+/proton) • Target dip height directly affects protons on target (must keep ISIS losses within bounds) Because of the large variations in yield for different tunes, and the need to keep ISIS losses to a minimum, an easily- adjustable insertion depth for the target is essential.

More Related