Difference between revisions of "Online Spin Flip"
From Hall A Wiki
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== Spin Flip System == | == Spin Flip System == | ||
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| − | === | + | === 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 | # Control the target spin flip consequence | ||
# Acquire and Record [[target]] spin state | # Acquire and Record [[target]] spin state | ||
# Output target spin related information into DAQ system, therefore data stream | # Output target spin related information into DAQ system, therefore data stream | ||
| − | # | + | # Interaction with human ([[Target Operator]]) |
# Communicate with related target software/hardware | # Communicate with related target software/hardware | ||
| − | === | + | === Structure === |
| + | [[Image:Spin Flip System.png|thumb|Spin Flip System Diagram]] | ||
| + | |||
| + | === Components Description === | ||
| − | === | + | ==== User Interface ==== |
==== [http://transversity.jlab.org:22/ Status Page] ==== | ==== [http://transversity.jlab.org:22/ Status Page] ==== | ||
Revision as of 18:13, 22 July 2008
This main page of Spin Flip Control System for Hall A He3 Polarized Target.
Contents
Shift Worker Quick Start
Please see main article Spin Flip Shift Worker Quick Start
Physics of Spin Flip
Spin Flip System
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
Structure
Components Description
User Interface
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.
