Difference between revisions of "He3 Target Test Items"
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== Cell Characterization == | == Cell Characterization == | ||
| + | |||
| + | === Density === | ||
| + | * Filling density | ||
| + | * Broadening of Alkali absorption | ||
| + | |||
| + | === Wall Thickness === | ||
| + | * Laser interference measurement: wall and window | ||
| + | |||
| + | == Optical Pumping System == | ||
| + | |||
| + | === Laser Optics === | ||
| + | * Laser power measurement | ||
| + | * Laser spectrum measurement/Absorption adjustment | ||
| + | * Calibrations of optics orientations, e.g. λ/4 plates | ||
| + | * Laser polarization measurement | ||
| + | * Optics alignment | ||
| + | * Power consumption at laser connectors (if there is any) | ||
| + | |||
| + | === Oven === | ||
| + | * RTD calibration | ||
| + | * Condition optimization: oven temperature as a function of gas flow and heater power | ||
| + | |||
| + | == Calorimetry == | ||
| + | |||
| + | === NMR === | ||
| + | * System Q-curve measurement of all pickup coils to prevent resonance | ||
| + | * He<sup>3</sup> NMRs: frequency and field sweeps (including NMRs during EPR calibration) | ||
| + | * AFP loss measurement | ||
| + | * Internal temperature measurement in pumping chamber using NMR | ||
| + | * NMR cross calibration: frequency vs. field, different locations | ||
| + | * Water NMR: field sweep (frequency sweep as well if possible) | ||
| + | * Flux calibration: pickup coil survey and flux calculation | ||
| + | |||
| + | === EPR === | ||
| + | * EPR calibration | ||
| + | * Cross check with water calibrated NMRs | ||
| + | |||
| + | == MISC Studies == | ||
| + | * Spin up time | ||
| + | * Relaxation time: room temperature, high temperature | ||
| + | * Optimization of pumping condition: laser power, oven temperature | ||
| + | * Polarization gradient | ||
Revision as of 12:03, 9 January 2012
Contents
Cell Characterization
Density
- Filling density
- Broadening of Alkali absorption
Wall Thickness
- Laser interference measurement: wall and window
Optical Pumping System
Laser Optics
- Laser power measurement
- Laser spectrum measurement/Absorption adjustment
- Calibrations of optics orientations, e.g. λ/4 plates
- Laser polarization measurement
- Optics alignment
- Power consumption at laser connectors (if there is any)
Oven
- RTD calibration
- Condition optimization: oven temperature as a function of gas flow and heater power
Calorimetry
NMR
- System Q-curve measurement of all pickup coils to prevent resonance
- He3 NMRs: frequency and field sweeps (including NMRs during EPR calibration)
- AFP loss measurement
- Internal temperature measurement in pumping chamber using NMR
- NMR cross calibration: frequency vs. field, different locations
- Water NMR: field sweep (frequency sweep as well if possible)
- Flux calibration: pickup coil survey and flux calculation
EPR
- EPR calibration
- Cross check with water calibrated NMRs
MISC Studies
- Spin up time
- Relaxation time: room temperature, high temperature
- Optimization of pumping condition: laser power, oven temperature
- Polarization gradient
