HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=0.9 g/s
beam on
I=20.5µA; new I2C settings; corrected trigger delay (htr)

New run with cold Origami and new I2C settings (shorter peaking time) and hopefully correct timing.

corresponding cal file: cal007

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=0.9 g/s
beam on; xy table position x=306 y=76.5
I=20.5µA; new I2C settings; corrected trigger delay (htr)

New run with cold Origami and new I2C settings (shorter peaking time) and hopefully correct timing - and centered position in both x and y.

corresponding cal file: cal007

currents:
06.10.2011  09:12:12  event=329714  rate=0events/s temp/curr=35.8/-05.5 36.0/-06.0 35.8/-06.9 33.6/001.7 33.5/002.2 33.6/019.3

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=0.9 g/s
beam on; xy table position x=306 y=76.5
I=20.5µA; corrected trigger delay (htr)

New run with cold Origami and same I2C setting as used 2010, with longer shaping time for p-side

centered position in both x and y.

corresponding cal file: cal006

currents:
06.10.2011  09:20:29  event=988  rate=0events/s temp/curr=35.8/-05.5 36.0/-06.0 35.8/-06.7 33.5/001.7 33.6/002.0 33.6/019.3
 

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=1 g/s
beam on; xy table position x=306 y=76.5
I=19.5µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages

Temp. at pipe inlet (K7) = -14°C
Temp. at pipe outlet (K8) = -17°C

Before this run, the front-end voltages (+2.5 and +1.25) were readjusted so that the nominal values appear on MAMBO. (Previously, both were about 50mV too low.) Not sure if this makes a big difference, let's see.

currents:
06.10.2011  15:54:24  event=2901  rate=36events/s temp/curr=35.5/-05.6 35.5/-06.0 35.4/-06.9 34.9/001.9 35.0/002.2 35.0/019.6
06.10.2011  16:24:25  event=81350  rate=50events/s temp/curr=34.9/-05.6 34.9/-06.1 34.9/-06.9 34.3/001.7 34.3/002.2 34.3/019.6
 

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=1 g/s
beam on; xy table position x=260.8 y=60.25
I=19.4µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages 

beam focused on APV #0 of p- and n-side, respectively

currents:
06.10.2011  17:07:41  event=639  rate=3events/s temp/curr=35.2/-05.6 35.2/-06.0 35.2/-06.9 34.5/001.7 34.5/002.2 34.5/019.6

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=1 g/s
beam on; xy table position x=352 y=89
I=19.1µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages

beam focused on APV #3 of p- and n-side, respectively

currents:
07.10.2011  00:16:57  event=987  rate=0events/s temp/curr=34.3/-05.6 34.3/-06.0 34.3/-06.9 33.3/001.7 33.5/002.2 33.3/019.2
07.10.2011  09:13:42  event=249992  rate=0events/s temp/curr=33.6/-05.5 33.5/-06.0 33.6/-06.7 32.5/001.7 32.5/002.0 32.5/018.8
 

HV=+-40V,
CO2 cooling: P_TT_4: 18.2 bar, mf=1 g/s
beam on; xy table position x=321 y=99
I=18.6µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltage

The beam is directly focused onto APV chip #2 of n-side, so that it hits the area underneath chip and cooling pipe.
On p-side this location is attached to chip #4, which currently can not be read out, hence we only get data for the n-side.

currents:
07.10.2011  10:03:22  event=979  rate=0events/s temp/curr=33.2/-05.6 33.3/-06.0 33.2/-06.7 32.2/001.6 32.2/002.0 32.2/018.7
07.10.2011  17:17:18  event=184992  rate=0events/s temp/curr=33.8/-05.6 33.8/-06.0 33.8/-06.9 32.7/001.7 32.7/002.0 32.7/018.7
 

Origami6
HV=+-40V,
CO2 cooling: P_TT_4: 14.9 bar, mf=0.9 g/s
beam on; xy table position x=306 y=76.5

I=18.6µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages 

CO2 pressure reduced to 14.9 bar --> temp is about 4K colder
Temp. at pipe inlet (K7) = -18°C
Temp. at pipe outlet (K8) = -21.8°C

used multi6 config instead of single hit config (cern11_origami_cooled2_multi6.cfg)

currents:
07.10.2011  18:36:07  event=1581  rate=31events/s temp/curr=33.9/-05.3 33.9/-05.6 33.9/-06.6 32.8/001.4 32.8/001.9 32.8/018.1

Origami6
HV=+-40V,
CO2 cooling: P_TT_4: 14.9 bar, mf=0.9 g/s
beam on; xy table position x=306 y=74.5

centered

I=17.8µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages 

CO2 pressure reduced to 14.9 bar --> temp is about 4K colder
Temp. at pipe inlet (K7) = -18°C
Temp. at pipe outlet (K8) = -21.8°C

currents:

07.10.2011  23:26:21  event=89786  rate=0events/s temp/curr=33.0/-05.3 33.0/-05.8 33.0/-06.6 31.9/001.4 32.0/001.9 31.9/017.7
 

Origami6
HV=+-40V, no cooling
beam on
I=91µA

longterm files (same files used for cal004 and run005):
It-pos-0410112056.txt 
It-neg-0410112056.txt  

currents and temperatures:
04.10.2011  21:50:13  event=83750  rate=50events/s temp/curr=35.2/-26.1 35.2/-28.7 35.2/-31.4 34.6/022.6 34.6/025.0 34.6/060.4
 

Origami6
HV=+-40V, no cooling
beam on
Istart=95,2µA
pos: x=306, y=87 (centered)

longterm files (same files used for cal004 and run005):
It-pos-0410112056.txt 
It-neg-0410112056.txt  

currents and temp:
05.10.2011  09:11:21  event=329649  rate=0events/s temp/curr=33.0/-23.9 33.0/-28.9 33.0/-28.9 32.0/020.1 32.0/025.0 32.0/060.0

Origami6
HV=+-40V,
no cooling
beam on; xy table position x=306 y=74.5
Istart=57µA;
std. I2C settings

centered

currents:
8.10.2011  00:07:43  event=991  rate=0events/s temp/curr=33.0/-15.4 33.0/-17.3 33.0/-17.7 31.9/011.5 31.9/013.2 32.0/040.20
...

08.10.2011  06:32:34  event=179710  rate=0events/s temp/curr=33.1/-22.1 33.0/-25.6 33.1/-22.6 31.9/018.2 31.8/021.7 31.9/048.5
08.10.2011  06:33:28  event=180105  ***WARNING*** Error detected in APV 0, subevent 2. Event discarded, reset sent.
 

Permanent APV errors at several (all p-side, some n-side) APV chips after 180105 events, which could not be recovered by software resets. After restart of run, all APVs where alive again, hence hardware reset and I2C reconfiguration after 5 or 10 consecutive APV errors should be added to TUXDAQ software.

After APV errors occured, the cummulative bias current decrised from 78µA to 54µA. This effect can occures whenever the digital part of the APV is switched between idle and full operation. It seems that this is a thermal effect, caused by  the slightly higher power consumption of the digital part of the chips.

Sr90, large scintillator, HVret @ Origami open
Origami Mod. #4
HV=+-40V, Ibias=2,03µA
CO2 cooling on, Tin=-16°C, Tout=-16,7°C

standard I²C settings for uncooled APV chips.

Lab measurement with new dark box but old, large scintillator.

20.02.2012  17:08:27  event=5771  ***WARNING*** Error detected in APV 6, subevent 0. Event discarded, reset sent. --> APV 6 recovered afterwards

Sr90, large scintillator, HVret @ Origami open
Origami Mod. #4
HV=+-40V, Ibias=2,03µA
CO2 cooling on, Tin=-16°C, Tout=-16,7°C

standard I²C settings for uncooled APV chips.

Lab measurement with new dark box but old, large scintillator.

Calibration run for run100.

Sr90, large scintillator, HVret @ Origami open
Origami Mod. #4
HV=+-40V, Ibias=2,03µA
CO2 cooling on, Tin=-16°C, Tout=-16,7°C

I²C settings for cooled APV chips --> same as used in run010.

Lab measurement with new dark box but old, large scintillator.

CO2 empty after 24497 events --> run stopped

same as run101

Sr90, large scintillator, HVret @ Origami open
Origami Mod. #4
HV=+-40V, Ibias=1,8µA
CO2 cooling on, Tin=-20.2°C, Tout=-21.3°C

I²C settings for cooled APV chips --> same as used in run010
e:\cvi-projects\apvdaq_fadc\origami6_V2_multi6_cooled.cfg

Lab measurement with new dark box but old, large scintillator.

CO2 empty after 24497 events --> run stopped --> no corresponding calibration available, but for rought analysis cal100 can be used for this run, too

Sr90, large scintillator, HVret @ Origami open
Origami Mod. #4
HV=+-40V, Ibias=1,8µA
CO2 cooling on, Tin=-20.2°C, Tout=-21.3°C

I²C settings for cooled APV chips --> same as used in run010
e:\cvi-projects\apvdaq_fadc\origami6_V2_single_cooled.cfg

Lab measurement with new dark box but old, large scintillator.

Sr90, large scintillator,
HVret @ Origami closed
HVret @ SMU connected
Origami Mod. #4
HV=+-40V, Ibias=1,6µA
CO2 cooling on, Tin=-20.5°C, Tout=-21.5°C

I²C settings for cooled APV chips --> same as used in run010

e:\cvi-projects\apvdaq_fadc\origami6_V2_multi6_cooled.cfg

Lab measurement with new dark box but old, large scintillator

Wires between HV connectors ground and HVret conntact at the mambo were open --> no HVret conntection between module and SMUs!
Moreover the SMU Inv. Nr. 545-078 has either an unstable output or problems with the current measurement.

Sr90, large scintillator,
Origami Mod. #4
HV=+-40V, Ibias=1,6µA
CO2 cooling on, Tin=-20.5°C, Tout=-21.5°C

I²C settings for cooled APV chips --> same as used in run010

e:\cvi-projects\apvdaq_fadc\origami6_V2_multi6_cooled.cfg

Lab measurement with new dark box but old, large scintillator

SMU:  +HV=Inv.Nr. 545-77    -HV=Inv.Nr. 540-702

HVret configuration:

0 ... switch open / not connected
1 ... switch closed / connected
 

J7... HV ret @ hybrid

Sr90, large scintillator,
Origami Mod. #4
HV=+-40V, Ibias=1,6µA
CO2 cooling on, Tin=-20.5°C, Tout=-21.5°C

I²C settings for cooled APV chips --> same as used in run010

e:\cvi-projects\apvdaq_fadc\origami6_V2_multi6_cooled.cfg

Lab measurement with new dark box but old, large scintillator

SMU:  +HV=Inv.Nr. 545-77    -HV=Inv.Nr. 540-702

HVret configuration:

0 ... switch open / not connected
1 ... switch closed / connected
 

J7... HV ret @ hybrid