Log entry time 01:35:45 on March 07, 2011

Entry number 350688

This entry is a followup to: 349856

Followups:

• 350885 03/07/11 18:51 V. Sulkosky Updated BCM Coefficients in EOR Script

Using run#2254

The current and the BCM scaler has the following relation:

I_a = [N_a/t - offset_a]/const_K_a

where I_a is the current

N_a/t = scaler rate (Hz)

off_set_a = off_set

a = 1,3,10 is the gain factor

we have:

bcm constK Offset constK_err offset_err

bcm_u1 2059.225227 627.980503 0.317307 10.325868

bcm_u3 6385.086733 259.501488 0.317307 10.325868

bcm_u10 19352.327633 627.422835 1.358402 12.284888

bcm_d1 1234.216156 154.756427 0.317307 10.325868

bcm_d3 7635.017957 636.693049 0.317307 10.325868

bcm_d10 24207.080456 686.709379 1.358402 12.284888

upstream: k10/k1 = 9.397868

upstream: k3/k1 = 3.100723

downstream: k10/k1 = 19.613323

downstream: k3/k1 = 6.186127

The downstream seem to be double the rate.

k1_u/k1_d = 1.668448

k3_u/k3_d = 0.836290

k10_u/k10_d = 0.799449

Figure 1