Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-45V, Ibias=70A
Position: APVs #2, 7, 11, 15 | # 17/18, 21, 25, 29
= p: 2DSSD #2, Origami3 #3, Origami1 #3, wedgenew #3
= n: 2DSSD #1/2, Origami3 #1, Origami1 #1, wedgenew #1

no beam at beginning (LINAC problem)

Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-50V, Ibias=77A
Position: APVs #2, 7, 11, 15 | # 17/18, 21, 25, 29
= p: 2DSSD #2, Origami3 #3, Origami1 #3, wedgenew #3
= n: 2DSSD #1/2, Origami3 #1, Origami1 #1, wedgenew #1

beam went off (LINAC problem) around

20.10.2012  07:00:39  event=315937

So better ignore the last 3000 events during analysis.

Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-50V, Ibias=76A
Position: APVs #2, 7, 11, 15 | # 17/18, 21, 25, 29
= p: 2DSSD #2, Origami3 #3, Origami1 #3, wedgenew #3
= n: 2DSSD #1/2, Origami3 #1, Origami1 #1, wedgenew #1

Same as run016, but timing shifted by 1 CLK to better center the peak of the shaped wafeforms for subsequent fitting during analysis.

Beam was turned off around here:

19.10.2012  08:56:12  event=193394

So better ignore the last ~5000 events for analysis.

Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-50V, Ibias=77A
Position: APVs #2, 7, 11, 15 | # 17/18, 21, 25, 29
= p: 2DSSD #2, Origami3 #3, Origami1 #3, wedgenew #3
= n: 2DSSD #1/2, Origami3 #1, Origami1 #1, wedgenew #1

Stack is now positioned on globally best performing position which should also enable reasonable tracking.

Trigger timing not perfect, needs adjustment (-1 CLK) -> new run

 Liebe Kollegen,

wir brechen. auf. Wünscht uns Glück!

Internal calibration for "stealth parasitic" mode Belle stack; taken without beam

Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-50V, Ibias=80A
Position: approx. centered
no beam
 

Total bias current history:

At the beginning, the system was already running for a few hours and the APV25 chips were initialized before, so thermal equilibrium was reached.

The actual calibration run happened during the first ~250 measurement points (~1 hour). It seems like the APVs draw a bit more current during internal calibration. The overall decay is supposedly due to a temperature decrease towards night.

Now tried the same thing with a short software run - same effect:

Need to investigate supply currents while data taking - they should actually go up a bit - and their dependency on the trigger rate.

Dieser Stack wird jetzt quasi als Pausenkasperl eingebaut und läuft im "stealth parasitic" mode während der Irradiation-Woche. Gut, dass wir alles auch von Wien aus fernsteuern können :-)

Origami Stack 2: Origami #4, #3, Wedge new1, old

HV = +-50V

Ibias=4.43µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#2 -> center of measureable area

Position of xy table:
x = 53, y = -31

Temperatur sensors:

• T11: Origami #4 in
• T12: Origami #4 out
• T13: Origami #3 in (wrong values!)
• T14: Origami #3 out
• T15: Wedge new 1 out
• T16: Wedge old out
• T17: Wedge new 1 cooling block
• T18: Wedge old cooling block

CO2 was empty @ 6 am.

 This run was not recorded in original sequence in the ELOG!!!

Same as run011, but now with +- 50V bias voltage.

Origami Stack 2: Origami #4, #3, Wedge new1, old
HV = +-10V

Ibias=4.83µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#1 ->  right side of sensor -> small side of wedge sensors

Position of xy table:
x = 23, y = -31

Temperatur sensors:

• T11: Origami #4 in
• T12: Origami #4 out
• T13: Origami #3 in (wrong values!)
• T14: Origami #3 out
• T15: Wedge new 1 out
• T16: Wedge old out
• T17: Wedge new 1 cooling block
• T18: Wedge old cooling block

So steuert man einen Testbeam!

Origami Stack 2: Origami #4, #3, Wedge new1, old
HV = +-50V, Ibias=12.3µA
Position: verticallbtween APV 1&2 of 6,  left side of sensor,
wide side of wedge sensors

calibration for run013

Temperatures @ 21:00:

T11: -32 degC
T12: -33 degC
T13: -16 degC (obviously wrong value)
T14: -35 degC
T15: -18 degC
T16: -17 degC
T17: -15 degC
T18: -15 degC

Origami Stack 2: Origami #4, #3, Wedge new1, old

HV = +-50V

Ibias=5.2µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#3 ->  left side of sensor -> wide side of wedge sensors

Position of xy table:
x = 83, y = -31

Temperatur sensors:

• T11: Origami #4 in
• T12: Origami #4 out
• T13: Origami #3 in (wrong values!)
• T14: Origami #3 out
• T15: Wedge new 1 out
• T16: Wedge old out
• T17: Wedge new 1 cooling block
• T18: Wedge old cooling block

Origami Stack 2a: Origami #4, Wedge new1
reading out all 6 APV of p-side
HV = +-40V, Ibias=10.4µA
 
Origami 3 and Wedge old are still installed in the box, but not read out --> disconnected

beam:
p-side: centered between APV 4&5
n-side: centered between APV 2&3

--> upper left corner of Origami and wedge module --> we hit the APV chips and / or the PA0 of the Origami module

no cooling

Temperatur sensors:

• T11: Origami #4 in
• T12: Origami #4 out
• T13: Origami #3 in (wrong values!)
• T14: Origami #3 out
• T15: Wedge new 1 out
• T16: Wedge old out
• T17: Wedge new 1 cooling block
• T18: Wedge old cooling block

Origami Stack 2a: Origami #4, Wedge new1
reading out all 6 APV of p-side
HV = +-40V, Ibias=5.12µA
 

no beam

no cooling

ATTENTION: Bias voltage was +-100 V instead of +- 50 V

Origami Stack 2: Origami #4, #3, Wedge new1, old

HV = +-100V

Ibias=12.3µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#3 ->  left side of sensor -> wide side of wedge sensors

Position of xy table:
x = 83, y = -25

Temperatures:

Origami #4: In=-33 degC / Out=-34 degC
Origami #3: Out=-35 degC (temperatur sensor of inlet is not working)
Wedge new 1: Out =  -17 degC, cooling block = -16 degC
Wedge old: Out = -15 degC, cooling block = -15 degC

Stopped after 132658 events, because of empty gas bottle and thus insufficient cooling.

ATTENTION: Bias voltage was +-100 V instead of +- 50 V

Same as run009.

Origami Stack 2: Origami #4, #3, Wedge new1, old
HV = +-10V

Ibias=12.3µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#1 ->  right side of sensor -> small side of wedge sensors

Position of xy table:
x = 23, y = -25

Temperatures:

Origami #4: In=-33 degC / Out=-34 degC
Origami #3: Out=-35 degC (temperatur sensor of inlet is not working)
Wedge new 1: Out =  -17 degC, cooling block = -14 degC
Wedge old: Out = -16 degC, cooling block = -14 degC

15.10.2012  22:08:31  event=0  rate=0events/s temp/curr=31.3/089.2 31.3/-16.2 31.2/-17.9 31.3/-18.2 29.9/003.6 29.9/003.1 30.0/-01.1 29.9/-01.6

ATTENTION: Bias voltage was +-100 V instead of +- 50 V

Origami Stack 2: Origami #4, #3, Wedge new1, old
HV = +-100V

Ibias=12.3µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#1 ->  right side of sensor

Position of xy table:
x = 23, y = -25

Temperatures:

Origami #4: In=-33 degC / Out=-34 degC
Origami #3: Out=-35 degC (temperatur sensor of inlet is not working)
Wedge new 1: Out =  -17 degC, cooling block = -14 degC
Wedge old: Out = -16 degC, cooling block = -14 degC

ATTENTION! Bias voltage was +-100 V instead of +-50 V 

Origami Stack 2: Origami #4, #3, Wedge new1, old
HV = +-100V

Ibias=12.3µA
 

beam position:
vertical: between APV 1&2 (of 6)
horizontal: centered on APV#1 ->  right side of sensor

Position of xy table:
x = 23, y = -25

Temperatures:

Origami #4: In=-33 degC / Out=-34 degC
Origami #3: Out=-35 degC (temperatur sensor of inlet is not working)
Wedge new 1: Out =  -17 degC, cooling block = -14 degC
Wedge old: Out = -16 degC, cooling block = -14 degC

15.10.2012  22:08:31  event=0  rate=0events/s temp/curr=31.3/089.2 31.3/-16.2 31.2/-17.9 31.3/-18.2 29.9/003.6 29.9/003.1 30.0/-01.1 29.9/-01.6
 

Stopped after 31650 events, because of PS problems and no beam.

Beam setting file:
H6A.804: FM HAD (H8=+180, H6=120@0mrad) PARALL IN H6A; RD42

Kommentar (Marko):
Das alte Beam Setting File war optimiert fuer H6B, sprich der Beam Focus war dort. Dieses Setting ist neuer und hat den Focus in H6B.