Target Analysis for Transversity Yi Qiang Jan. 29, 2009 for Transversity Analysis Meeting Transversity Analysis Meeting 6/17/2019

Transversity Analysis Meeting Outline Goal of the target analysis Measurements/data obtained so far Procedures for major analysis List of analysis 6/17/2019 Transversity Analysis Meeting

Goals of target analysis Target polarization: 3% Target polarization direction: 0.2 degrees Target density/Luminosity calculation: 2% Target cell wall thickness: 10% Nitrogen dilution factor: 10% * 3He elastic scattering asymmetry 6/17/2019 Transversity Analysis Meeting

Transversity Analysis Meeting Data obtained so far Basic characteristics of all three production cells Geometry, Volume and 3He density (N2 density from UVa cells) Holding field direction Compass measurements Coil currents in each event RTD readings in each event: pumping, target and reference cells NMR frequency sweeps in each spin flip (every 20min) EPR/NMR cross calibration: at least 2 for each config Pumping chamber internal temperature test: at least 1 for each config NMR freq/field cross calibration: at least 1 for each config Water measurement: 3 sets of data Distance of pickup coil to cell Some spin up and AFP loss data 6/17/2019 Transversity Analysis Meeting

Holding Field Calibration Field Direction Determination: Used vertical compass aligned Vertical field direction before the experiment ( ~ 0.1 degrees ) Horizontal Compass survey with constant holding field current settings: 8 combinations ensure enough parameters for a fairly realistic field formula ( early analysis already shows an 0.2 degrees accuracy with 6 parameters) Field Strength Determination: EPR frequency NMR 6/17/2019 Transversity Analysis Meeting

EPR/NMR analysis EPR Analysis Polarization! Internal Temperature Measurement Internal Temperature Calibration Target Density Measurement RTD readings Density at Pumping Chamber Target Cell Geometry EPR Data: EPR frequency shift and NMR during each flip EPR Analysis Polarization at pumping chamber NMR frequency sweep calibration constant NMR Frequency Sweep Data including Temperature Polarization! 6/17/2019 Transversity Analysis Meeting

Water analysis Water Analysis Polarization! Pickup Coil Distance Flux Calculation Target Density Measurement Density at Target Chamber Cell Geometry Water NMR Field Sweep Data Water Analysis Polarization at Target Chamber NMR Field Sweep Calibration Constant RTD readings Data Filter Holding Field Current Magnetic Field Strength NMR Field/Frequency Cross Calibration NMR Frequency Sweep Calibration Constant NMR Frequency Sweep Data including Temperature Polarization! 6/17/2019 Transversity Analysis Meeting

Dilution Factor Dilution Factors In-Elastic Yield of 3He, H2 and N2 Elastic Pressure Curve In-Elastic Data from Reference Cell, RTD Readings Density of 3He and N2 Elastic Data of Reference Cell with Different Pressure RTD Readings Production Data with RTD Readings Dilution Factors Production Cell Elastic Data Filling Density Compare In-Elastic Yield of 3He, H2 and N2 Calibrated Pressure Readings 6/17/2019 Transversity Analysis Meeting

Transversity Analysis Meeting List of Works Analysis Holding Field Modeling EPR Internal Temperature Calibration (Chiranjib) EPR Analysis (Chiranjib/Jin) Water Flux Calculation (Yi’) Water Analysis/Data Filtering Dilution Factor Measurement Density Measurement (Yi’) Wall Thickness Measurement (Yi’) 6/17/2019 Transversity Analysis Meeting