# A Field Theory Approach to Modeling Helical FCG's

## Abstract

Often helical flux-compressor generator (FCG) design codes are essentially circuit codes which utilize known equations for parameterizing circuit elements such as armature and stator inductance. The authors present an analytical model that is based more on first principals. The stator inductance is calculated using a definition of inductance in terms of the magnetic vector-potential. The calculation accounts for winding-pitch, bifurcations, and works for any ratio of length to diameter. The currents on the armature are calculated self-consistently and are not assumed to simply 'mirror' the stator currents. Resistive losses and magnetic diffusion losses are calculated less rigorously but they are working on better methods. Details of the model and comparison with experiment will be presented.

- Authors:

- Publication Date:

- Research Org.:
- Los Alamos National Lab., NM (US)

- Sponsoring Org.:
- US Department of Defense (US)

- OSTI Identifier:
- 759415

- Report Number(s):
- LA-UR-98-4555

TRN: US0004342

- DOE Contract Number:
- W-7405-ENG-36

- Resource Type:
- Conference

- Resource Relation:
- Conference: Megagauss Magnetic Field Generation, Tallahassee, FL (US), 10/18/1998--10/23/1998; Other Information: PBD: 18 Oct 1998

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; POWER SUPPLIES; ARMATURES; COMPUTER-AIDED DESIGN; MAGNETIC FIELDS; STATORS; CALCULATION METHODS

### Citation Formats

```
Fortgang, C M.
```*A Field Theory Approach to Modeling Helical FCG's*. United States: N. p., 1998.
Web.

```
Fortgang, C M.
```*A Field Theory Approach to Modeling Helical FCG's*. United States.

```
Fortgang, C M. Sun .
"A Field Theory Approach to Modeling Helical FCG's". United States. https://www.osti.gov/servlets/purl/759415.
```

```
@article{osti_759415,
```

title = {A Field Theory Approach to Modeling Helical FCG's},

author = {Fortgang, C M},

abstractNote = {Often helical flux-compressor generator (FCG) design codes are essentially circuit codes which utilize known equations for parameterizing circuit elements such as armature and stator inductance. The authors present an analytical model that is based more on first principals. The stator inductance is calculated using a definition of inductance in terms of the magnetic vector-potential. The calculation accounts for winding-pitch, bifurcations, and works for any ratio of length to diameter. The currents on the armature are calculated self-consistently and are not assumed to simply 'mirror' the stator currents. Resistive losses and magnetic diffusion losses are calculated less rigorously but they are working on better methods. Details of the model and comparison with experiment will be presented.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {1998},

month = {10}

}