Main INDEX
Monthly INDEX
PREV
NEXT
#### User name M JOnes

#### Log entry time 18:16:48 on June15,2000

#### Entry number 43858

#### Followups:

keyword=Estimate of run time for thcm=135 phi=180

Estimate of run time for thcm=135 phi=180

I set up a paw_kumac/mm_check.kumac to estimate the time

needed for a kinematic point.

The results for run 2099 are

Run = 2099 thcm=thcm-135

For tc_cor

tc_cor peak sum=4364 back sum=244 ratio peak/back =17.8852

Sum of missing mass = 4333 , 543.85 events/mC

Sum of missing mass minus back = 4109 , 515.735 events/mC

Sum of missing mass cut on Q2,W = 914 , 114.719 events/mC

Scale by raw/back

missing mass cut on Q2,W = 108.788 events/mC

Need 2100000 events in tight cut, so 19.3036 C needed

At 65 uA the time would be 82.494 hours

At this point we already had 2.68C with the large collimator

which gave at 75 events/ mC which is equivalent to about

1.9C already. So we need 17.4C more at the open collimoators.

This would be 77 hours at 65uA. So if things go well maybe we will

change on Sunday.

I will write up something more extensive for the other kinematics.