1 / 12

Update 1. Transport functions 2. RHRS optics

Update 1. Transport functions 2. RHRS optics. Min Huang 11/06/2012. Transport Functions P ackage. Goal: For simulation of longitudinal target field optics situation (Rseptum:400016) to help identify sieve hole ID

geraldine-reagan
Télécharger la présentation

Update 1. Transport functions 2. RHRS optics

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. Update1. Transport functions2. RHRS optics Min Huang 11/06/2012

  2. Transport Functions Package • Goal: For simulation of longitudinal target field optics situation (Rseptum:400016) to help identify sieve hole ID • Setting in Snake: 5T longitudinal target field, 400016 septum field map, 2.251 GeV e- trajectories • Fitting functions • Forward: target plane to focal plane; to 8 end-planes in between with apertures to determine which e- can pass through • Reverse: focal plane to target plane • Self checked and compiled in Geant4 • Next: get it double checked with Geant4 test, and see how to work out the simulation

  3. Reconstruction Check Target  focal plane  target, then compare the value with initial value δtheta=0.54mrad δdelta=1.27e-4 δy=0.65mm δphi=0.88mrad

  4. RHRS Straight-thru Optics • Settings • Beam energy 2.253GeV • 0T target field at 6 deg, Gep target magnet config • Good septum • Optics runs • Full delta scan on both arms (-3.5%, -1%, 0, 2%, 3.5% on RHRS)

  5. Matrix Calibration • Adopted the steps from Left calibration last time • Start from initial matrix from Snake, and lowest possible x order of each (theta, y, phi) term

  6. Steps of cuts Tg_y vs. Tg_phvetex cut for the whole run Cut on each hole These two are from #22262dp=0%

  7. Steps of cut 3. Cut carbon elastic for each hole Contamination, like Al elastic C12 elastic C12 1st excited These two are from #22262dp=0%

  8. Matrix Angle Calibration Initial pattern, before calibration

  9. Matrix Angle Calibration After 1st iteration

  10. Matrix Dp calibration

  11. Next • Any suggestions from this meeting • RHRS longitudinal situation?

  12. backup

More Related