Online Info

The laser spots

As of June 2001:

There are 3 laser spots.

Two are one Barrel 3 Ladder 15 Wafer 7 Hybrid 1 (Index 430) Near Anode 200. Due to a cabling mix up on the SvtDataViewer they appear to be one Ladder 16 One is on Barrel 3 Ladder 7 Wafer 1 Hybrid 2 (Index 293) Near Anode 200.

The ASIC parameters

As of Aug 1 2001:

Ped offset=10
Pre-time bucket save2=1
Post-time buckets saved=3
Additional anodes(left and right) saved = 1 (This is the svt specific change Tonko implemented


ASIC parameters
 
Seq-Hi = 0
Seq-Lo= 2
Threshold hi = 7
Theshold lo=3

As of Aug 27 2001:

Ped offset=10
Pre-time bucket save2=1
Post-time buckets saved=3
Additional anodes(left and right) saved = 1 (This is the svt specific change Tonko implemented


ASIC parameters
 
Seq-Hi = 0
Seq-Lo= 2
Threshold hi = 8
Theshold lo=3

As of Sept 21 2001:

Ped Offset = 20

As of Dec 20 2001

Threshold hi = 10

The Black Anodes

As of Start of run 2001

No black anodes written out

As of XX XXX 2001

Anodes 1 and 2

As of XXX XXX 2001

Anodes 1 and 240

As of Oct 25 2001

Anodes 2 and 239

The T0

As of June 2001:

T0 at ~ timebucket 4

As of Aug 1 2001:

Whole of STAR trigger timing change moved the T0 by 319 ns which is ~-8 timebuckets. T0 at ~ timebucket -4

As of Aug 1 2001 3.30pm :

SVT timing change moved the T0 back by 319 ns which is ~+8 timebuckets. T0 at ~ timebucket +4

As of Sept 21 2001 :

Another 2 RHIC strobes (n=25) added to the T0 it should now be at T0= +12

RDO's on/off

As of Sept 6 2001:

RDOW8 turned off as causing DAQ to hang.

As of Sept 10 2001:

RDOW8 fixed and back in

Injectors

As of Sept 12 2001:

Injectors automatically powered on start up so not only get the pulse but it actually does something in the pulser events. Before this date it will be fairly random if the injectors fire for a given run it depends how diligent the shift leaders are.

Bad Anodes

As of Sept 20 2001:

The bad anode list was implemented by Tonko and Jun in the raw data taking.

10-8 bit Conversion Table

Get conversion table here

Helen Caines

Last modified: Mon Apr 15 09:18:00 EDT 2002