PC-2015-05-14 » History » Version 4
Rogers, Chris, 06 May 2015 09:17
1 | 1 | Rogers, Chris | h1. Phone Call 2015-05-14 |
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3 | Analysis phone call, 15:00 BST, Thursday 14th May 2015, RAL Conference Room CR10. |
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5 | h2. Phone Details |
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7 | http://mice.iit.edu/phonebridge.html |
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8 | |||
9 | h2. Actions |
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11 | * ACTION *(Pasternak/Rogers)*: determine magnetic settings routine - do we imagine "equivalent coil"? Implement iron in MAUS(!)? Run everything through OPERA? |
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12 | * ACTION *(Rogers)*: Tolerances - controls people ask what are the tolerances on magnet current |
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14 | h2. RLSR/MPB Actions |
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16 | * ACTION *Rogers*: Review the requirements for accurate end-to-end simulation |
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17 | * ACTION *Rogers*: Report, in a MICE note to the collaboration, the definitions and methods used for the determination of the betatron functions and emittances. |
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18 | * ACTION *Rogers*: Carry out an independent review of the beam dynamics analysis |
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19 | * ACTION *Rogers*: Define strategies to provide online feedback, quickly |
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21 | h2. Actions following Run planning meeting |
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23 | * ACTION *(Nugent)*: Estimate data rate with cooling channel magnets off |
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24 | ** Still waiting on good April data - this weekend? |
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26 | h2. Agenda |
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27 | |||
28 | * Actions |
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29 | * Issues Arising |
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30 | * [[Physics shifts]] - volunteers needed! |
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31 | * Field Mapping (*Victoria Blackmore*) |
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32 | ** attachment:tracking_measured_misalignments.pdf - Chris Rogers |
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33 | * Step IV Technical Paper |
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34 | ** MICE Muon Beamline (*Jaroslaw Pasternak*) |
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35 | ** Detectors (*Melissa Uchida*) |
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36 | *** Alignment Measurement |
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37 | *** Efficiency |
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38 | *** Residuals |
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39 | ** Particle ID (*Celeste Pidcott*) |
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40 | ** Measurement of magnetic alignment (*Chris Rogers*) |
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41 | ** Quality of transported beam (*Chris Hunt*) |
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42 | * Step IV First Demonstration of Cooling (*Chris Rogers*) |
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43 | * Step I Papers (*Victoria Blackmore*) |
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44 | ** EMR paper |
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45 | ** Pion contamination |
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46 | * MICE Demonstration of Ionisation Cooling (*Jaroslaw Pasternak*) |
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47 | ** Lattice close out by CM41; paper first revision soon afterwards |
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48 | * Magnetics |
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49 | ** Non-linear beam optics/measurement(*Rob Ryne*) |
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50 | * Absorber and material physics |
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51 | ** Scattering measurement |
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52 | ** Energy loss measurement |
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53 | ** Beam (de)polarisation attachment:analysismeeting300415.pdf |
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54 | * Support |
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55 | ** Batch Production (*Ryan Bayes*) |
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56 | ** X-BOA (*Chris Rogers*) |
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57 | ** Online Analysis Tool (*Chris Rogers*) |
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58 | ** Trigger analysis (*Chris Rogers*) |
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59 | * Date of next meeting |
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60 | ** April 30th |
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61 | ** (May 6th, VC) |
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62 | ** May 14th |
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63 | ** May 21st - clash with MAP workshop |
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64 | ** May 28th |
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65 | ** June 4th |
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66 | ** June 11th |
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67 | ** (CM 42: June 22-24) - we may want to have an analysis workshop around the CM |
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68 | 2 | Rogers, Chris | |
69 | 4 | Rogers, Chris | h1. Notes |
70 | 2 | Rogers, Chris | |
71 | 1 | Rogers, Chris | h3. Present |
72 | 4 | Rogers, Chris | |
73 | Rob Ryne |
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74 | Holge Witte |
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75 | Jaroslaw Pasternak |
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76 | John Nugent |
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77 | Joe |
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78 | Adam Dobbs |
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79 | 2 | Rogers, Chris | |
80 | 3 | Rogers, Chris | h3. Field Off Trigger Rate |
81 | 1 | Rogers, Chris | |
82 | 3 | Rogers, Chris | * Solenoid fields off triggers at TOF1 44000 TOF2 1000 |
83 | * Solenoid fields on triggers at TOF1 53000 TOF2 43000 |
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84 | ** => 3 % rate scaling; but run with TOF2 trigger; so limit comes from ISIS/target |
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85 | * 120 triggers per spill with the Decay Solenoid at TOF1, not including tracker deadtime |
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86 | * Jaroslaw notes attempt to optimise was not successful |
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87 | 2 | Rogers, Chris | |
88 | 3 | Rogers, Chris | h3. Physics shifter |
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90 | 2 | Rogers, Chris | * Seek to get the physics devil automated |
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92 | 3 | Rogers, Chris | h3. Beamline |
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94 | 2 | Rogers, Chris | * Validated calibration |
95 | 1 | Rogers, Chris | * Checked some old settings |
96 | * Made two additional settings to match to diffuser |
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97 | 2 | Rogers, Chris | * Made two additional settings to optimise for "straight tracks" |
98 | * Seeking to validate MC |
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100 | 3 | Rogers, Chris | h3. EMR Papers |
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102 | 1 | Rogers, Chris | * Review next week (Tuesday) |
103 | 2 | Rogers, Chris | |
104 | 3 | Rogers, Chris | h3. Pion contamination |
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106 | 1 | Rogers, Chris | * See slides |
107 | 2 | Rogers, Chris | * Feldman-Cousins? |
108 | ** Frequentist method based on likelihood ratio; can deal in an automatic way with statistical results that fall outside of physically allowed; determines upper limit or two sided; |
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109 | ** Paul Soler suggests alternatively use Bayesian method (e.g. Higgs papers) |
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111 | 3 | Rogers, Chris | h3. MDIC |
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113 | 1 | Rogers, Chris | * Final coil positions by MAP meeting |
114 | 2 | Rogers, Chris | * Use IPAC paper as starting point for PR-ST AB paper |
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116 | 3 | Rogers, Chris | h3. Error Fields |
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118 | 2 | Rogers, Chris | * Slide 4: cusps come from the mesh |
119 | * Slide 4: symmetry point is at -2.75; tracker is at around -4.75 to -5.75 |
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120 | * Few * 10^-4 T in the tracker azimuthal |
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121 | * Slide 9: units are T at 0.15 m |
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122 | Solenoid fields in 2 weeks time |
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124 | 3 | Rogers, Chris | h3. Non-linear beam optics |
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126 | 1 | Rogers, Chris | * Looking at the 6x6 problem... |