SNAP User's Guide--Release 6.0

The SNAP User's Guide

J.A. Murphy, S.D. Scott, H.H. Towner

December 1991

Abstract:

SNAP is a one-dimensional equilibrium kinetic analysis code. This document describes how to run SNAP and its related utilities. The physics models employed in SNAP are described briefly, mostly to clarify the process of preparing input data files. A report describing the physics models in greater detail will be issued separately.

 
• Contents
• List of Figures
• List of Tables
• Introduction
• Getting Started
• SNAPIN--Preparing the Input to SNAP
  • How to Run SNAPIN
  • Read a SNAP Input File
  • Select the Shot and Time of Analysis
  • Set the Physics Controls
  • Select the Ti Model
  • Get the Magnetics Data
  • Select the Diagnostic Profiles
    • The Profile Menus
    • Graphical Editing of Diagnostic Profiles
    • Comments on Editing Diagnostic Profiles
    • Smoothing Diagnostic Profiles
    • Deglitching Diagnostic Profiles
    • Mapping Diagnostic Profiles
    • Density Normalization
    • The Radiated Power Profile
  • Get Beam Data
  • Get the RF Data
  • Get the Impurities Data
    • Getting a Z-Effective Profile
  • Enter Comments
  • Write a SNAP Input File
  • AUTOSNAP
• Running SNAP
  • Executing the SNAP Code
  • The Output
    • Profile Arrays
    • Naming Conventions for Profile Arrays
• SNAP Utilities
  • Looking at SNAP Output with CUPLOT
  • SNAPSUM
  • Restoring and Replotting Data
    • Plotting Snap-tries
    • Looking at Old Snap-try Comments
    • Restoring Old Snap-tries
  • SNAP Error Analysis: the RABBIT Code
  • Creating Databases with SNAP Output
• Physics of SNAP
  • Surface Voltage Correction
  • Deposition of Beam Neutrals
    • Solution of Fokker-Planck Equation
    • Details of Beam Power Profiles
  • RF models
  • Neutral Density Model
  • Plasma Density
  • Evaluation of Particle Fluxes
  • Ion and Electron Power balance
  • Analysis of Momentum Transport
  • Fusion Products
  • Impurity Ti
    • Deposition of Beam Torque
    • Beam `Work' on a Rotating Plasma and Viscous Heating
• Acknowledgments
• Index
• About this document ...