# The `Test_absorption` Instrument

*McStas: Test of Union material with only absorption*

## Identification

- **Site:** Tests_union
- **Author:** Mads Bertelsen
- **Origin:** University of Copenhagen
- **Date:** September 2015

## Description

```text
Testing an absorber made using the Union components. An absorber is made
without processes and just the make_material component, and requires
a few special cases.
```

## Input parameters

Parameters in **boldface** are required; the others are optional.

| Name | Unit | Description | Default |
|------|------|-------------|---------|

## Links

- [Source code](Test_absorption.instr) for `Test_absorption.instr`.

---