Difference between revisions of "CODA"
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===How to download and check the LHRS MLU trigger (updated 11/05)=== | ===How to download and check the LHRS MLU trigger (updated 11/05)=== | ||
− | Consult the MLU information | + | Consult the MLU information of the main Hall A |
[https://hallaweb.jlab.org/wiki/index.php/Main_Page#Trigger_MLU wiki page]. | [https://hallaweb.jlab.org/wiki/index.php/Main_Page#Trigger_MLU wiki page]. | ||
− | |||
=== How to check the dead time === | === How to check the dead time === |
Revision as of 13:23, 17 July 2017
Start CODA
Open a terminal and type startcoda.
The runcontrol window will appear: File:Startcoda.png
Hit the "Connect" button, then "Configure" (choose a configuration e.g. LeftHrs), and "Start Run", or, to troubleshoot, "Download", "Prestart", and "Go".
Setting prescale factor for the HRS only (updated 11/03)
For Left HRS: * log in as adaq on adaq1 machine * type "prescaleL &" to open the GUI * set the desired prescale factors and click "Save" and Exit
For Right HRS: * log in as "adaq" on "adaq2" machine * type "prescaleR &" to open the GUI * set the desired prescale factors and click "Save" and Exit
Definition of triggers:(Proposed for Argon- 02/07/17) T1 = L-arm s0 && s2 && Shower T2 = L-arm (s0 || s2) && (Cherenov||Shower) T3 = R-arm s0 && s2 T4 = R-arm (s0 || s2) && !(Cherenov||Shower) T5 = T1 && T3 T6 = T2 && T4 T7 = L-arm EDTM trigger T8 = 103.7 kHz pulser (for LHRS), 1.024 kHz (for RHRS) T9 =
Starting xscaler (HRS) and checking raw trigger rates (updated nov 5, 2014)
Raw rates of trigger and detector channels can be accessed using a GUI. Below are the instructions for opening "xscaler" GUI
- These screens are generally already open on the agen5 machine (above the DAQ machine)
- If it is xscaler is not open then follow these instructions:
- login as a-onl on adaq1 or adaq2 machines (eg: "ssh a-onl@adaq1" )
- passwords are written on the white board
- type "goxscaler" and follow the instructions printed on the screen
- type "./xscaler Left" or "./xscaler Right" to access xscaler display
How to download and check the LHRS MLU trigger (updated 11/05)
Consult the MLU information of the main Hall A
How to check the dead time
last update 12/2/14
"Needs to be updated"
There are two ways to check for deadtime:
- online using the XScaler tool.
- See above for instructions on how-to open the Xscaler.
- Select the "misc" tab.
- the ratio (DVCS_stop/DVCS_masterOR) is a measurement of the live time for our main trigger.
- offline. This solution allows to check deadtime for individual triggers (say DIS or DVCS, ...)
After you replay the run, ssh to aonl1, aonl2, aonl3 or aonl4 machine and:
> godvcs > cd marco/deadtime/ > analyzer > .L deadtime.C > deadtime(NNNNN)