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RunPlan20130803¶
Daily schedule¶
August | Fri 2nd | Sat 3rd | Sunday 4th | Monday 5th |
estimated hours | 4 pm - 8 pm | 8 am - 8pm | 8 am - 8pm | 8 am - 8pm |
MOM | Blackmore | Blackmore | Blackmore | Gamet |
Lead shifter | Blackmore | |||
Shifter 2 | Boyd | Boyd | Alex D | |
Shifter 3 | Hunt | Hunt | Hunt | Hunt |
BLOC | Nebrensky | Nebrensky | Nebrensky | Nebrensky |
SOC | ||||
Experimenter | Rogers + Martyniak | |||
Aim | ||||
Beam? | ||||
Extra Personnel |
Shifter hours of service¶
See the shift schedule, otherwise hours are:
MOM: | 08:00 - 10:00 and 18:00-20:00 |
Lead shifter | 10:00 - 18:00 |
Shifter1 | 08:00 - 16:00 |
Shifter2 | 12:00 - 20:00 |
- Note that we will need to inform ISIS crew about new PPS procedures and hall access if we are locking the hall overnight (Action on MacWaters cc MOM)
Data Requested¶
- Beamline optimisation for rate at TOF2 (Blondel)
- PID data for pion/muon discrimination using e.g. KL (Orestano)
- rate has factor 3 reduction for TOF2 distance, little reduction for DS off
- Run 3454, 3256; seek to get same rate
- TOF calibration (Rajaram/Rogers)
- Calibrate TOF2 in new position (copy run 3511?)
- Check calibration of TOF1 (copy run 3248?)
- Compare calibration as a function of quad settings (is calibration dependent on path length of electrons)
- Ckov data (Cremaldi)
- Magnet alignment study (Overton)?
- Hall PPS tests (Nebrensky)
Reference runs¶
- Reference runs at the beginning of every day
Number of pulses | Beamloss (V) | Trigger | Proton absorber | Q1 | Q2 | Q3 | D1 | DS | D2 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Polarity |
200 | 4 | TOF1 | 29 | 57.8 | 105.6 | 64.6 | 202.8 | 0 | 100.43 | 176.83 | 237.14 | 157.24 | 157.6 | 238.52 | 203.7 | + |
Beamline optimisation for rate at TOF2¶
- I think the job here is to "tweak the currents" trying to improve rate. Not sure how that can go...
PID data¶
Number of pulses | Beamloss (V) | Trigger | Proton absorber | Q1 | Q2 | Q3 | D1 | DS | D2 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Polarity |
10000 | 4 | TOF1 | 29 mm | 48.41 | 88.48 | 54.13 | 169.11 | 0 | 84.45 | 147.28 | 197.51 | 130.87 | 126.61 | 191.46 | 163.35 | + |
6000 | 4 | TOF1 | 29 mm | 63.73 | 116.53 | 71.32 | 225.16 | 0 | 110.58 | 195.63 | 262.35 | 174.00 | 176.82 | 267.62 | 228.64 | + |
- Want 100k-200k triggers for each data set
TOF Calibration¶
10000 | 4 | TOF1 | 29 mm | 38.7 | 48.3 | 33.5 | 115.5 | 0 | 59.7 | 97.2 | 130.3 | 86.1 | 51.2 | 76.6 | 64.4 | + |
10000 | 4 | TOF1 | 29 mm | 57.8 | 105.6 | 64.6 | 202.8 | 0 | 100.43 | 176.83 | 237.14 | 157.24 | 126 | 190.92 | 122.1 | + |
5000 | 4 | TOF1 | 29 mm | 38.7 | 48.3 | 33.5 | 115.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | + |
- If DS is off, take more pulses; aim to get ~ 40k triggers, need ~ 1000 electrons per pixel to do the fits; when quads are off, we don't need to calibrate all the pixels, only a few as a cross-check
Email from Durga (images attached):
> On Jul 25, 2013, at 11:44 AM, Chris Rogers wrote: > > Can you remind me - roughly how many electrons per pixel do you need to get a good TOF calibration? Is it per pixel or per pair of pixels (i.e. is it for TOF0 slab x, slab y -> TOF1 slab x, slab y)? > > Cheers, > Chris The requirements are a little different for the timewalk and trigger/t0 calibrations. But, roughly ~200 particles /per pixel/ in a station should satisfy all the pieces. If you're interested in a little more detail: I am attaching XY plots from the Dec'11 calibration data to give some idea of what we had. - For TOF0 -- the timewalk calibration failed for 4 slabs -- the 2 slabs at the bottom and the 2 at the top. - For TOF1 -- which was the trigger station -- the trigger calibration failed for pixels (XY) = (0,0) (0,1) (0,5) (0,6) (6,0) (6,1) (6,5) (6,6)
Ckov Data¶
- Just want Ckov turned on, no other special request
Magnet Alignment Study¶
From email from Ed Overton:
- Preferably using a positive beamline.
- Repeating some previous runs, so see #2808
- G4BL suggests quad scans are still good even with no DS
For all scans use:
Number of pulses | Beamloss (V) | Trigger | Proton absorber | Q1 | Q2 | Q3 | D1 | DS | D2 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 |
250 | 4 | TOF1 | 83 mm | 68.0 | 84.9 | 59.0 | 203.0 | -- | 94.32 | 176.8 | 237.1 | 157.2 | * | * | * |
Q7 | Q8 | Q9 |
0 | 0 | 0 |
80.0 | 0 | 0 |
160.0 | 0 | 0 |
240.0 | 0 | 0 |
320.0 | 0 | 0 |
0 | 0 | 0 |
0 | 80.0 | 0 |
0 | 160.0 | 0 |
0 | 240.0 | 0 |
0 | 320.0 | 0 |
0 | 0 | 0 |
0 | 0 | 80.0 |
0 | 0 | 160.0 |
0 | 0 | 240.0 |
0 | 0 | 320.0 |
Hall PPS Tests (Henry)¶
Henry wants to test the PPS with some obscure use-cases at the end of the shift on Monday, 5th August (related to dropping hall searches, etc.) It should take about 10 minutes at the end of the shift.
- confirm no Muon Test permit during CE state - Confirmed DONE
- test for Muon Test permit during SC Permit non-searched CE state - not possible :-( DONE
- PK00 for Start Search - to be in PK press DONE
- Cancel Search during Searching state - confirmed - DONE
- confirm permit keys not removable while enabled - confirmed - DONE
- Search point photos for user guide - DONE
Updated by Nebrensky, Henry about 10 years ago ยท 47 revisions