Installing the detector simulator

The Q4 CCD detector portion of the DHS can be used with a det_emulator program which can be obtained separately from Area Detector Systems Corporation. The det_emulator program simulates a Q4 (or actually a Q1) detector, allowing a simulated beam line to collect 'data'.

The det_emulator generates artificial images and sends the images over socket connections following the same protocol as a the det_api program. The detector DHS is responsible for writing the images to disk.

1. First install and configure a DHS as described in Installing DHS .

2. Copy the correction files from somewhere for the simulated CCD (step not shown).

   blctlxx:~/release-3_2/dhs/linux > ls -alrt POSTNUF CALFIL NONUNF
   -rwxr-----    1 blctl    postgres   334520 May 23 10:53 POSTNUF
   -rwxr-----    1 blctl    postgres 25812118 May 23 10:53 CALFIL
   -rwxr-----    1 blctl    postgres 10617344 May 23 10:53 NONUNF
   

3. Copy the CCD emulator and environment file.

   smbdcsdev:/usr/local/dcs/det_emulator >	scp blcpu2:~/release-3_2/dhs/det_emulator .
   det_emulator         100% |*****************************| 81920       00:00    
   
   smbdcsdev:~/release-3_2/det_emulator >	scp blcpu2:~/release-3_2/dhs/CCD_API.ENV .
   CCD_API.ENV          100% |*****************************|   198       00:00    
   smbdcsdev:~/release-3_2/det_emulator >
   

4. Start the CCD emulator

   smbdcsdev:~/release-3_2/det_emulator >	det_emulator 
   ---------------------------------
          CCD Detector Control V1.1
          Copyright ADSC 1997
   ---------------------------------
   local column offset set to 35 for detector 0
   local column offset set to 69 for detector 1
   local column offset set to 20 for detector 2
   local column offset set to 17 for detector 3
   ccddet_init: CCD size is: 1242 (rows) x 1152 (cols)
   ccddet_init   : at Dec 19 15:03:51: initialized system for controller: 0
   ccddet_init   : at Dec 19 15:03:51: system properly initialized.
   

5. Start up the detector dhs.

   	blctlxx:~/release-3_2/dhs/linux > ./dhs detector