## Comet parameter: activation_method

- This parameter specifies which scan types are searched.
- If "ALL" is specified, no filtering based on the activation method is applied.
- If any other allowed entry is chosen, only spectra with activation method matching the specified entry are searched.
- This parameter is valid only for mzXML, mzML and mz5 input.
- Allowed values are: ALL, CID, ECD, ETD, PQD, HCD, IRMPD
- The default value is "ALL" if this parameter is missing.

Example:
`activation_method = ALL`
`activation_method = CID`
`activation_method = ETD`
`activation_method = HCD`