Revision as of 17:56, 14 November 2008

This is a collection asf2r2r243t432t

NMR Cross Calibration

Nov 14, 2008

Please Ref to Halog #248715.

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 @ Ref 
      -> 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%