Trigger  Monitoring Checklist L3

High Voltage To TRIGGER counters Look at HV_Control.vi on the Plastic computer.
Nominal State  Actual State Agree? Actions to Take Comments
On c    Off c On c  Off c Yes c No c If they disagree, contact local trigger expert
High Voltage to ZDC In ZDC HV (pet) window on RHIC X-term. 
Nominal State  Actual State Agree? Actions To Take Comments
On c    Off c On c  Off c Yes c  No c If they disagree, contac local trigger expert  
Nominal and measured voltages agree within 50 volts Yes c  No c If they disagree, contact local trigger expert
Trigger Discriminator Compare image of Camac_Control.vi with nominal state under documentation -> trigger

(click on the square green buttons on top of left-hand window to switch between the positive and negative displays)
Do the nominal and actual states agree? Actions to Take Comments
Positive Yes c  No c If they disagree, contact local trigger expert
Negative Yes c  No c If they disagree, contact local trigger expert

 

Scalers

Record the visual scalers in the chart below.  Do not stop the scalers to make the measurements (make estimates where necessary).  Do not reset the scalers.

Scalers are reset only at 10 am.  Each morning at 10 am, the shift crew should reset the scalers and record the reset time in the online logbook.

Please write any comments you feel pertinent ('start of run', 'middle of long store', 'beams steered in our area', etc.)  

If you want to print this table without printing out the whole checklist, go here.
Date:

Time:

Blue Beam Current ( /10^6 ions):

Yellow Beam Currents (/10^6 ions):
Paddle Negative Sum  
ZDC Negative Sum  
Paddle Positive Sum  
ZDC Positive Sum  
 
PP*PN [wide]  
PP*PN [narrow]  
PP[N]*PN[N] [wide] Nge3  
Cerenkov OR Neg  
 
ZP*ZN[wide]  
ZP*ZN[narrow]  
ZN  
ZP  
 
PP[N] N ge 3  
PP [N ge 1]  
PN[N] N ge 3  
PN [N ge 1]  
 
PP[Nge3]*PN[Nge3]*[PP*PN]  all narrow  
Events Accepted  
ZP*ZN*CC (25 GeV 15 ns) RHIC SCALER  
Triggers Applied  
 
Central  
ZP*ZN (10 GeV 40 ns)  
Accepted Collisions Central  
Cerenkov OR P  

Electronics Room Check The Trigger Rack is directly in front of the electronics door.
Instructions Actual state Action to Take Comments
Red switches of Fans A, B, C, D On c Off c

 

 If Off contact local trigger expert.
Nim bins LED's A ,B , C, D  On c Off c If Off contact local trigger expert.