Difference between revisions of "Online Spin Flip"
From Hall A Wiki
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== Physics of Spin Flip == | == Physics of Spin Flip == | ||
| − | Please refer to | + | Please refer to [http://www1.jlab.org/Ul/publications/documents/thesis_A1n_ssp.pdf Thesis of Xiaochao Zhen], Charpter 4 Polarized He3 Target |
== System Structure == | == System Structure == | ||
Revision as of 18:27, 22 July 2008
This main page of Spin Flip Control System for Hall A He3 Polarized Target.
Some Quick Links:
Contents
Introduction
Spin Flip System is designed for controlling Hall A Polarized He3 Target automatically flip spin direction during experiment run time. The physics goal is to reduce systematic false asymmetry, driven by experiment Transversity and d2n.
Core functions for this system are
- Control the target spin flip consequence
- Acquire and Record target spin state
- Output target spin related information into DAQ system, therefore data stream
- Interaction with human (Target Operator)
- Communicate with related target software/hardware
Physics of Spin Flip
Please refer to Thesis of Xiaochao Zhen, Charpter 4 Polarized He3 Target
System Structure
User Interface
Exception Handling
Status Page
Status Page Contain two list of status reports of target control software. They are User Report and Automatic Report.
- User Report are generated by pressing "generate report" button on target Main Control GUI.
- Automatic Report are automatically generated after every spin flip or once an error occured.
