1. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 1 Beamline Diagnostics Kenny Walaron University of Glasgow / RAL

2. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 2 Change of emphasis Previously work had been carried out focussing on PID along beamline Plan now is to firstly construct a detector to measure expected beam rates from target Segmented scintillator with double sided read-out to measure dE/dx placed inside ISIS ring PMTs XP2020 or EM19954 First possible test Summer 2005 Segmented BC-404

3. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 3 Specs BC-404 Light output 68% Rise Time 0.7ns Pulse width = 1.8ns Att. Length = 210cm XP2020 Gain 3*10^7 Rise Time = 1.5-1.7 ns

4. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 4 Layout relative to ISIS

5. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 5 Motivation Measure particle rate and ID (P, Pi contamination) Expected beam rates unknown Normalisation using different simulation tools still in disagreement * LAHETMARSGEANT4 217326762558 * Figures from TJR at RAL Oct 2004 Collab meeting Monitor conditions of beam online Events/ms of good target and RF

6. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 6 Current Simulation Constructed using G4Beamline Scintillator modelled as 1cm of Polyethelene Air taken into account (10m and 20m will be shown) My code, developed for beamline particle ID, will be used to show particle energy loss in Scintillator

7. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 7 Particle ID code Changes to G4beamline source. Asciifile.cc, BLTrackfile.cc Stand alone shell script and code calculates from asciifile output by particles in the scintillator using all G4 Eloss modelling

8. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 8 Theoretical Prediction

9. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 9 10m from Target

10. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 10 20m from Target

11. Walaron Diagnostics MICE Collaboration Meeting Berkley 9/2/2005 11 What's next … Proposal to ISIS to be submitted by P.Drumm Purchase scintillator, test PMT’s, construct detectors Place scintillators inside ISIS ring in Summer. Need a DAQ system Any offers would be received graciously