primitive helicity check

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User name R. Michaels

Log entry time 16:08:33 on February19,2011

Entry number 347673

This entry is a followup to: 347653

Followups:

347676 02/19/11 16:33 Higinbotham 1 kHz Decoding

keyword=primitive helicity check

First of all, last time I checked pattern synch was
Thursday morning, not Friday. I had remembered wrongly.

Below is a raw dump of some helicity data from just now.
(I am in the CH.)

It looks ok to me. Quad structure. The clock
is 101 which is about right (103.7 kHz / 960 Hz).
In this printout "qrt" means "pattern synch".
Of course this doesn't replace an analysis code,
which is what we need. But it's a good sign.

ring_map points to the 4 channels we save in
ring buffer. It might not be optimal. "9" was
formerly the DVCS trigger 10, but now it's the clock.

What it was:
ring_map[0] = 2;
ring_map[1] = 17;
ring_map[2] = 9;
ring_map[3] = 4;

What I change it to now
ring_map[0] = 2; /* trigger 3 */
ring_map[1] = 17; /* upstream BCM (x3 gain) */
ring_map[2] = 0; /* trigger 1 */
ring_map[3] = 4; /* trigger 5 */

I'll make sure this gets implemented (reboot TS11 to load it).

On a more negative note, when I run my own online helicity
checks there are many failures. It is "as if" the
helicity disagrees with the predictor algorithm.
Like maybe they changed this ?
I am investigating.

------------ on TS11 (when NOT running DAQ) ---------------

-> PrintRing()

Printing 200 values from 5105 in RingBuffer
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 2 2 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 1 data 1 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 2 0 101
clk 101 qrt 1 hel 1 data 3 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 102 qrt 0 hel 1 data 0 0 102
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 1 2 101
clk 101 qrt 0 hel 0 data 2 0 101
clk 101 qrt 1 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 101 qrt 1 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 1 data 0 2 101
clk 102 qrt 0 hel 0 data 0 0 102
clk 101 qrt 0 hel 0 data 2 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 2 2 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 1 data 1 2 101
clk 102 qrt 0 hel 0 data 0 0 102
clk 101 qrt 0 hel 0 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 1 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 102 qrt 1 hel 0 data 1 0 102
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 1 0 101
clk 102 qrt 1 hel 0 data 1 2 102
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 2 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 1 data 3 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 1 0 101
clk 101 qrt 1 hel 1 data 1 0 101
clk 101 qrt 0 hel 0 data 1 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 1 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 2 101
clk 101 qrt 1 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 102 qrt 0 hel 0 data 0 2 102
clk 101 qrt 1 hel 1 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 1 data 0 2 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 0 101
clk 101 qrt 1 hel 0 data 0 0 101
clk 101 qrt 0 hel 1 data 0 2 101
clk 101 qrt 0 hel 1 data 2 0 101
clk 101 qrt 0 hel 0 data 0 0 101