Polhe3 meeting 20110720
From Hall A Wiki
- progress
- new cell and oven bottom piece (zhiwen)
- the first cell is delivered at UVa, payment is made, Alan is working on oven bottom piece.
- RTD reading (Jie)
- RTD reading discrepancy is solved.
- pulse NMR (all)
- Zhiwen ordered necessary items and talk to Yuan Zheng from UVa. We will start with a simplified setup without the cross diode, potentiometer or mixer (maybe)
- Chunhua did calculation for impedance matching , we will try to use our current capacitor/matchbox, refer to Polhe3_target_lab_howto#Impedance_matching
- Jie is writing labview program for DAQ (Jie)
- diffusion mode measurement (Chunhua)
- We a test of NMR with different RF power and a calculation for H1 which completely destroy polarization is done. Diffusion_rate#test_RF_power
- convection flow study (Zhiwen)
- heaters and RTD are ordered, Omega confirmed that the heaters have no magnetic material. There's some concerns about RTP nickel wires. refer to Polhe3_wanted_item_list_2011_summer
- temperature optimization test (Chunhua)
- Chunhua confirm the fitting results are stable once the range is larger than 1.5*tau.
- new cell and oven bottom piece (zhiwen)
- Calendar
| timeline | Tasks | To be done by | status |
|---|---|---|---|
| new cell and oven bottom piece | |||
| 7/21-8/15 | receiving and check fitting | all | |
| pulse NMR | |||
| 7/21-8/17 | record down the current NMR setup, rearrange it for pNMR setup. test the transmitter circuit and receiver circuit separately. combine them once "switch" arrives, | Jie | |
| 7/21-8/17 | find or make coil and test it with capacitor matchbox | Chunhua | |
| 7/21-8/31 | write labview program | Jie | |
| diffusion mode measurement | |||
| 7/21-8/1 | make a zapper coil or a pair of coils to confine field better | Chunhua | |
| 7/21-8/1 | do a test | all | |
| convection flow study | |||
| 7/21-8/31 | make a zapper coil or a pair of coils to confine field better | Chunhua | |
| 7/21-8/31 | test heaters once they arrive. do calibration on old and new RTD. install new RTD once they arrive. setup up the additional two RTD readout. connect RTD readout/control in labview | Jie | |
| temperature optimization test | |||
| 7/21-8/1 | redo 230 spin down | Zhiwen | |
| 7/21-8/17 | improve analysis, check fitting with error estimation and prepare plots for a note. | Chunhua | |
| 7/21-8/17 | water measurement | all | |
| transfer tube wall measurement | |||
| 7//21-8/1 | borrow Ultrasonic thickness gauge and do the measurement. | Jie | |
