====== Easy GRETINA Decomp File Creation ======

  * create a new directory **~gretina/DecompParam/detmap_YYMMD**

  * copy your detmap files for the individual quads to the new directory  (standard format:  **detmap_Q1.txt**)

  * run the script **~analysis/packages/Calibrations/apply_calibration_steps.sh <dirname>**

<code>
~analysis/packages/Calibrations/apply_calibration_steps.sh .
</code>    
  
  * assuming the 10 detmap file exists, this script will create all the necessary decomp files for all gain ranges using the standard naming conventions.

  * You may need to edit the trace gain file for broken segments (i.e. Q4P2, tr_gain_Q4pos2_CC9.txt, set line 25 to 10000.0 and Q8P2 gamma6, line 19 ) OR give SMALL calibration parameter in the detmap_Qx.txt file.

== Loading the Decomp Files == 

  * Copy the setfile. The setfiles are located in **~gretina/DecompParam/** Copy the last setfile to the current date:

<code>
cp setFile.2017-02-09 setFile.YYYY-MM-DD
</code>

  * Edit the newly created setfile. Perform a search and replace within the new setfile of the old date and replace it with the new date; example using setfile.2017-02-09 one would change:

<code>
170209  ->  YYMMDD
</code>

  * edit the file **~/grdecomp.sh** to point to the new setfile.  This is done by editing the variable **FILECONF** in **~/grdecomp.sh**  This variable will be the first uncommented line in the file.  Best practice is to copy/comment the original line before editing.

== Restarting GRETINA Decomp ==

  * Once the above steps are complete, the decomp process needs to be restarted. This can be done in one of two ways:
    * Press either the **GRETINA Stand Alone** of **GRETINA + S800** button.
    * or run **./grdecomp.sh** from a terminal connected to **a2.gam** (WARNING: this will open the run dialog box on the computer the terminal is open on.)