Sr90 Radioactive Source
No cooling
Module position: 0:0(top left)
HV Turned to +40,-40V with currents. +1.0 and -1.0 µA

N+1.25V current: 0.22A
N+2.50V current: 0.57A
P+1.25V current: 0.26A
P+2.50V current: 0.72A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -57:-30(bottom right)
HV Turned to +40,-40V with currents. +1.2 and -1.22 µA

N+1.25V current: 0.22A
N+2.50V current: 0.56A
P+1.25V current: 0.26A
P+2.50V current: 0.70A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -32:-30(bottom center)
HV Turned to +40,-40V with currents. +1.22 and -1.24 µA

N+1.25V current: 0.22A
N+2.50V current: 0.56A
P+1.25V current: 0.26A
P+2.50V current: 0.70A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -5:-30(bottom left)
HV Turned to +40,-40V with currents. +1.25 and -1.26 µA

N+1.25V current: 0.22A
N+2.50V current: 0.57A
P+1.25V current: 0.26A
P+2.50V current: 0.72A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -59:-20(top right)
HV Turned to +40,-40V with currents. +1.25 and -1.26 µA

N+1.25V current: 0.22A
N+2.50V current: 0.56A
P+1.25V current: 0.26A
P+2.50V current: 0.71A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -32:-20(top center)
HV Turned to +40,-40V with currents. +1.23 and -1.25 µA

N+1.25V current: 0.22A
N+2.50V current: 0.56A
P+1.25V current: 0.26A
P+2.50V current: 0.71A

Events: 200000

Sr90 Radioactive Source
No cooling
Module position: -5:-20(top left)
HV Turned to +40,-40V with currents. +1.2 and -1.2 µA

N+1.25V current: 0.22A
N+2.5 V current: 0.56A
P+1.25V current: 0.26A
P+2.50V current: 0.70A

Events: 200000

Run name: run002

Run type: 0 (Hardware (Normal Run))
Comments:
After ~40min warmup
HV=80
90Sr 1mCi source - moved compared to run001
multi6

Max. Events=100000      Trg delay=25

Origami 6 module #1
w/o cooling
sensor: B2HPK_10938-9239_8

n-side: all 4 APVs read out
p-side: APV #0 to #3  read out, analog output of #4 and #5 were not connected to FADC board

shorts at upper coat

opens at upper coat

shorts at lower coat

opens at lower coat

opens at upper coat

shorts at upper coat

opens at lower coat

shorts at lower coat

*** NOTE: AFTER THIS MEASUREMENT WE REALIZED THAT BIASING WAS NOT DONE PROPERLY
          HENCE THE RESULTS BELOW ARE NOT RELIABLE 
          (in fact it is surprising that they are not worse) ***


Please find the results of the lab source test on the new Micron module here.
It is read out with 3 + 3 APV chips on either side.

Results table of the source measurement:
                      p-side     n-side
 Cluster signal [e]    18361      19434
 Strip noise [e]        1142       1193
 Avg cluster width      1.91       1.30
 Single strip SNR       16.1       16.3
 Cluster SNR            11.6       14.3
 Strip pitch [um]       50.0      153.5     

Apparently, the double metal capacitance is not so bad as expected, even though the Micron sensor does not use
the hourglass crossing scheme. Presumably the dielectric between metal 1 and 2 is rather thick (several um).
Strip noise is roughly the same on both p and n side, so the difference in Cluster SNR (*) only stems from the
unequal cluster width (which is a result of the different pitches).

Peak time precision vs SNR (last plot below) is worse compared to the values obtained with various HPK sensors
in the November 2007 beam test at KEK. However, this is a comparison of source and beam and thus might not be
significant. Let's see what we will get in the SPS beam test next week.

(*) Cluster SNR := sum(signal) / (strip_noise * sqrt(cluster_width) )

soeben haben wir den micron-DSSD (double metal layer) in den 2-teiligen rahmen geklebt und auf beiden seiten
temporäre kapton-stückerln aufgeklebt, über die bias appliziert werden kann. nach trocknung und bonden der
bias-verbindungen (montag, 5.5.2008) wird dieser für sensor-tests zur verfügung stehen.