Difference between revisions of "Transversity Target Calibration List"
From Hall A Wiki
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| − | This is a collection | + | This is a collection of [[he3]] target calibration measurement for experiment [[transversity]] |
| + | Please add an entry for each furture calibration. Please include | ||
| + | * Time stamp as second order title | ||
| + | * the data directory | ||
| + | * Result if there is any | ||
| + | * measurement condition | ||
| + | * Link to Halog Entry | ||
| + | * Recormend to include the measurement time line | ||
| + | |||
= EPR Calibration = | = EPR Calibration = | ||
| Line 50: | Line 58: | ||
01:13 Temp Stable to | 01:13 Temp Stable to | ||
RTD#0->6=64c 130c 167c 105c 52c 224C 221C | RTD#0->6=64c 130c 167c 105c 52c 224C 221C | ||
| − | 01:14 Field NMR | + | 01:14 Field NMR |
-> Pol=~56% (calib const changes when he3 temperature changes) | -> Pol=~56% (calib const changes when he3 temperature changes) | ||
01:15 Target -> He3 | 01:15 Target -> He3 | ||
Revision as of 18:02, 14 November 2008
This is a collection of he3 target calibration measurement for experiment transversity
Please add an entry for each furture calibration. Please include
- Time stamp as second order title
- the data directory
- Result if there is any
- measurement condition
- Link to Halog Entry
- Recormend to include the measurement time line
Contents
EPR Calibration
Nov 13
Water Calibration
Internal Temp. Calibration
NMR Cross Calibration
Nov 14, 2008
Please Ref to Halog #248715.
Please check the data according the the NMR time stamp below.
Event Time Line
Start Point:
Pick up Coil Pos
Trans - Holding Field
Spin Antiparallel to Field
Pol.=~60%
11:06 NMR Freq Sweep -> Pol = ~60% (42mV)
RTD#0->6=67C 133C 167C 106C 52C 223C 221C
11:20 Bigbite ->710A
11:51 Pumping Laser Off
From now on there is no good NMR pol first guess
since cell temperature changes
12:33 Temp Stable to
Oven=330C
Coil=-4.601A,6.232A,0.712A
RTD#0->6=66C 134C 167C 107C 53C 224C 221C
12:40 Target -> He3
12:43 Freq NMR @ He3
-> Pol=~60% (40mV), Peak @ 81kHz
12:53 Temp Stable to
Oven=330C
Coil=-4.599A,6.230A,0.712A
RTD#0->6=40C 71C 140C 61C 38C 223C 220C
--------------------------------------------------------
NMR Cross Calibration Start
--------------------------------------------------------
12:54 Freq NMR @ He3
-> Pol=50-60% 33mV
01:00 Field -> Long +
01:02 Target -> Pick Coil
01:13 Temp Stable to
RTD#0->6=64c 130c 167c 105c 52c 224C 221C
01:14 Field NMR
-> Pol=~56% (calib const changes when he3 temperature changes)
01:15 Target -> He3
01:27 Temp Stable to
RTD#0->6=40C 71C 137C 62C 38C 223C 221C
01:27 Freq NMR @ He3
-> Pol=50-60% (31mV)
--------------------------------------------------------
NMR Cross Calibration Ends
--------------------------------------------------------
01:50 Temperature change screen shot
02:06 NMR Field Sweep. Pol.=~40~50%
