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  HEPHY logbook of the Electronics Group, Page 3 of 4  Not logged in ELOG logo
ID Datedown Author Project Measurement Type Object ID Subject
  26   Thu May 8 16:51:03 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 1 of 6 room temperature measurements using Sr90 Source (single)

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

  23   Wed May 7 18:20:36 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 6 of 6 room temperature measurements using Sr90 Source (multi6)

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

  22   Wed May 7 17:33:21 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 5 of 6 room temperature measurements using Sr90 Source (multi6)

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

  21   Wed May 7 16:43:37 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 4 of 6 room temperature measurements using Sr90 Source (multi6)

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

  20   Wed May 7 15:53:38 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 3 of 6 room temperature measurements using Sr90 Source (multi6)

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

  19   Wed May 7 15:04:32 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 2 of 6 room temperature measurements using Sr90 Source (multi6)

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

  18   Wed May 7 14:36:29 2014 Benedikt WürknerBelle IIsourceL3 moduleNo 1 of 6 room temperature measurements using Sr90 Source (multi6)

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

  17   Sun Jul 4 05:48:36 2010 Christian IrmlerBELLE UpgradesourceOrigami 6 - module 1run002: first analysis results

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

 

 

  16   Wed Oct 7 14:24:06 2009 Dieter UhlBELLE Upgradehybrid#5hybrid-pitchadapter

shorts at upper coat

pitchadapter5_upper_coat.gif

 

opens at upper coat

pitchadapter5_upper_coat_opens.gif

 

shorts at lower coat

pitchadapter5_lower_coat.gif

 

opens at lower coat

pitchadapter5_lower_coat_opens.gif

  15   Wed Oct 7 14:23:35 2009 Dieter UhlBELLE Upgradehybrid#4hybrid-pitchadapter

opens at upper coat

pitchadapter4_upper_coat_opens.gif

 

shorts at upper coat

pitchadapter4_upper_coat.gif

 

opens at lower coat

pitchadapter4_lower_coat_opens.gif

 

shorts at lower coat

pitchadapter4_lower_coat.gif

  14   Tue May 20 14:27:50 2008 Markus FriedlBELLE Upgradesourcemicronanalysis results of source test
*** 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) )
  13   Fri May 9 10:04:26 2008 Christian IrmlerSPS Testbeam June08modulemodule 05/05properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 18.0 nA Ibias (200 V) = 23.6 nA
  12   Fri May 9 10:00:34 2008 Christian IrmlerSPS Testbeam June08modulemodule 03/10properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 18.9 nA Ibias (200 V) = 25.5 nA
  11   Fri May 9 09:56:15 2008 Christian IrmlerSPS Testbeam June08modulemodule 06/03properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 26.5 nA Ibias (200 V) = 37.8 nA
  10   Wed May 7 19:05:08 2008 Christian IrmlerSPS Testbeam June08modulemodule 04/04properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 27.8 nA Ibias (200 V) = 32.7 nA
  7   Wed May 7 16:12:58 2008 Christian IrmlerSPS Testbeam June08modulemodule 12/08properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 22.2 nA Ibias (200 V) = 26.5 nA
  8   Wed May 7 15:40:07 2008 Christian IrmlerSPS Testbeam June08modulemodule 07/07properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 20.2 nA Ibias (200 V) = 21.9 nA
  9   Wed May 7 15:26:24 2008 Christian IrmlerSPS Testbeam June08modulemodule 20/09properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100 V) = 25.1 nA Ibias (200 V) = 31.4 nA
  6   Wed May 7 15:24:49 2008 Christian IrmlerSPS Testbeam June08modulemodule 10/02properties (noise, intcal), APVs bonded to the sensor
Module tested with 1 and 2 rows bonded to the sensor, respectively. HV = 100 V Ibias (100V) = 19.1 nA Ibias (200V) = 23.7 nA
  5   Wed Apr 30 16:52:17 2008 Markus FriedlBELLE Upgrademodulemicronmicron sensor glued to frame
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.
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