Difference between revisions of "HRS DAQ for Q2, Optics"

From PREX Wiki
Jump to: navigation, search
(Created page with "The HRS DAQ is used for Optics, for measuring Qsq, and background studies. This is expert driven. L-HRS DAQ runs on adaq3 ........ R-HRS DAQ runs on adaq2 Account: adaq COD...")
 
Line 1: Line 1:
 
The HRS DAQ is used for Optics, for measuring Qsq, and background studies. This is expert driven.
 
The HRS DAQ is used for Optics, for measuring Qsq, and background studies. This is expert driven.
 +
 +
We will need a checklist for switching between counting mode and integrating mode. The old checklist is linked below. We'll need instructions which are at least as good:
 +
 +
https://hallaweb.jlab.org/parity/prex/runinfo/check_spectdaq.html
  
 
L-HRS DAQ runs on adaq3 ........ R-HRS DAQ runs on adaq2
 
L-HRS DAQ runs on adaq3 ........ R-HRS DAQ runs on adaq2

Revision as of 10:48, 20 June 2019

The HRS DAQ is used for Optics, for measuring Qsq, and background studies. This is expert driven.

We will need a checklist for switching between counting mode and integrating mode. The old checklist is linked below. We'll need instructions which are at least as good:

https://hallaweb.jlab.org/parity/prex/runinfo/check_spectdaq.html

L-HRS DAQ runs on adaq3 ........ R-HRS DAQ runs on adaq2

Account: adaq

CODA will normally be running already. But, to start CODA from scratch on either HRS: "startcoda"

The running config is usually LeftHRS or Righthrs, but there may be other configs for special purposes.

Triggers are (still to be defined)

T1: S0 scintillator T2: S3 scintillator (behind Quartz) T3, T4, etc.

How to set Prescale factors: Type "prescaleL" or "prescaleR" and use the obvious GUI.

Scalers display (xscaler): Login to aonl1 as the a-onl account and type "xscaler", then do what it says to do. Note that xscaler is normally running on the hapc3 computer above the adaq1 console.

 
Triggers for PREX

T1 = S0A & S0B
T2 = S3
T3 = S0A || S0B
T4 = Upstream Quartz
T5 = Downstream Quartz
T6 = ((S0A & S0B) & S3) = T1.and.T2
T8 = Clock (1024 Hz)

Note about prescale factors
Max prescale factors: ps1-4=16777215; ps5-8=65535
T9-12 cannot be prescaled but any trigger can be turned off with ps=0