# rates

Fortran module: `rates`

## Parameters

User-configurable parameters (can be set via `param_dict`):

| Parameter | Type | Default | Description |
|-----------|------|---------|-------------|
| `cion` | `<class 'numpy.ndarray'>` | `0.0` |  |
| `grainarea` | `<class 'numpy.ndarray'>` | `0.0` |  |
| `h2dis` | `<class 'numpy.ndarray'>` | `0.0` |  |
| `lasttemp` | `<class 'numpy.ndarray'>` | `0.0` |  |
| `rate_er_unsplit` | `float64[(3421,)]` | `array(3421,)` |  |
| `rate_lh_unsplit` | `float64[(3421,)]` | `array(3421,)` |  |
| `turbvel` | `<class 'numpy.ndarray'>` | `1.0` |  |

## Constants (Read-Only)

Fortran PARAMETER constants (compile-time values):

| Constant | Type | Value |
|----------|------|-------|
| `dp` | `<class 'numpy.ndarray'>` | `8` |
| `h2stickingtemp` | `<class 'numpy.ndarray'>` | `87.0` |
| `h2stickingzero` | `<class 'numpy.ndarray'>` | `0.87` |
| `hstickingtemp` | `<class 'numpy.ndarray'>` | `52.0` |
| `hstickingzero` | `<class 'numpy.ndarray'>` | `1.0` |

## Runtime Access

Access `rates` parameters at runtime using `uclchem.advanced.GeneralSettings()`.
See [Accessing Fortran Parameters](index.html#accessing-fortran-parameters-at-runtime) on the main Fortran API page for examples.