Tracker Misalignment

Study

David Forrest

University of Glasgow

Grid Element● First (?) sizeable MICE Grid job exploiting

Grid storage, processing and Ganga job

submission

● Knowledge gained could filter into future

analyses through tutorial at CM21...

● 80+ hr job on Laptop, 1-2hr on Grid

● Major outcome of misalignment study

Scope● 4D emittance

● 10,000 events

● Stage 6, G4MICE tracker volume

misaligned

● Independant seeds

● Good muons....(to apply)

● Decay off

Now● Granularity 1000 events per cpu on grid

● Each sim stored separately on grid,

fetched, reconstructed into 10,000 event

run and analysed offline. Easily repeated.

● The files are sitting on the grid, done. I

need to chain them together and then

analyse.

Before

After

Future Work● Finish alignment part of alignment study.

Plots for 0.5, 1.5, 2.5, 4.0, 6.0, 8.0, 10 for

+/-10mm in x and y, +/- 3mrad in y and +/-

10mm and 3mrad together for x and y

● Write up grid guide and/or tutorial for

MICE (exploiting storage (co-ord with

Malcolm/Henry), processing and ganga

job submission software)