Majority of 5, threshold at 1000 ADC count, 13 channels enabled (10 trigger signals)  50 Hz, 30 us window.

58 k events recorded.

Majority of 5, threshold at 1000 ADC count, 24 channels enabled (16 trigger signals)  100 Hz, 30 us window.

38 k events recorded.

Majority of 8, threshold at 1000 ADC count, 24 channels enabled (16 trigger signals)  10 Hz, 200 us window, trigger at 9.5 microseconds.

10 k events recorded.

By direct inspection pileup seems at the 10 % level in the 200 us window.

Crew: Edgar Sanchez Garcia, Sam Hill, Simone Stracka, Tom Thorpe, Yi Wang

Morning: Tested photocurrents for MB2 on tabletop using SMU and Keithley switching matrix.  All measured between 1-10 microAmps.

Afternoon: Tested PDU mounting procedure with TPC assembled and with the mockup.  No showstoppers. This will be the procedure for installation
With the mockup on the table we double checked the resistances.  Confirmed all values are as before cooling indicating no additional damage to the wire-bondings.

Crew: Edgar Sanchez Garcia, Sam Hill, Simone Stracka, Tom Thorpe, Yi Wang

Morning: Set up equipment for the IV curve measurements. We enable the interlock system in the SMU in order to go higher than 42 V (handle with care).

Afternoon:  Measuring IV curves.  Note there is a voltage drop in the LV cable that needs to be compensated for.  

Chan 1 is set at +3.3V drawing 1.46A; sense line reads +2.39V
Chan 2 is set at -3.3V drawing 1.46A; sense line reads -2.39V
IV curves are scanning from 0-80V in 200mV steps w/ 100uA limit: elog:45/2 , elog:45/3
The two runs are visible ( elog:45/1 for color code and mapping )
Compare to elog:45/4 , obtained when probing individual tiles under more controlled light conditions

People:  Simone, Sam, Tom, Edgar

Tested IV curve python script that runs using MIDAS. Measured resistance consistant with resistor specification. elog:46/1

The resistance is attached to ch11, and we called the script (channels go from 0 to 24):
chnum=11 ; python3 iv_curve.py --no_steering --caen_chan $chnum --stop_v 3 --step_v 0.001 --filename ivcurve_`date +%s`_$chnum.txt 

Issues:

No readout of trip condiotion therefore python script overides power supply trip and attemps to bring back voltage to next value. Potentially dangerous. Script only terminates with the final voltage value. See attached plot elog:46/1

Script terminated with error message:

Traceback (most recent call last):
  File "iv_curve.py", line 287, in <module>
    iv.run()
  File "iv_curve.py", line 269, in run
    self.set_caen_and_wait_for_readback(voltage)
  File "iv_curve.py", line 223, in set_caen_and_wait_for_readback
    raise RuntimeError("CAEN HV didn't respond to request to set voltage to %s; latest readback voltage is %s" % (voltage, rdb))
RuntimeError: CAEN HV didn't respond to request to set voltage to 2.976; latest readback voltage is 0.052000001072883606

People: Edgar, Simone

Installed differential to single-ended converters in VME crate, and turned crate back on. elog:47/2

Channel count in the converters is 0 to 15 starting from the low end. Wired according to:
left board, channels 0..15 = PDM slot 1..16
right board, channels 0..8 = PDM slot 17..25

N.B. V1725 board #0 logic level is set to TTL (boards #1, #2, #3 to NIM) elog:47/3

In ODB / Equipment / V1725_Data00 / Settings /  set Channel Mask to 0x1555 for all V1725 boards (enables channels 0 2 4 6 8 10 12)
(board 0 receives 7 PDM inputs, boards 1,2,3 receive 6 PDM each)

In https://ds-proto-daq.cern.ch/chronobox/ , set Enable Channel [ch_enable] = 0x3F3F3F7F , Channel Assignment [ch_assign] = 0x00393340.
9 central PDM's assigned to "top" group, external PDM's assigned to "bottom" group elog:47/1

Wiki instructions with the script to get the CDM back into a sensible state seem outdated. The variables seem fine, though ... 
[dsproto@ds-proto-daq ~]$ esper-tool read 192.168.1.5 cdm ext_clk
[49999632]
[dsproto@ds-proto-daq ~]$ esper-tool read 192.168.1.5 lmk pll1_ld
[1]
[dsproto@ds-proto-daq ~]$ esper-tool read 192.168.1.5 lmk pll2_ld
[1]

We need python3 package tkinter installed on ds-proto-daq in order to run the steering module GUI. 

I don't have root privileges.

I have installed the python3-tkinter package from yum. I checked that "import tkinter" works from a python3 prompt.

> V1725 board #0 logic level is set to TTL (boards #1, #2, #3 to NIM) 

There was a problem with CMakeLists for the V1725 driver, and the frontend was only connecting to 1 board. This is now fixed, and all the boards should have the same (TTL) logic level.

We have tried to connect the steering module to the DAQ pc via Luigi's USB-Ethernet adapter. 

That does not appear to work. We'll receive another USB-Ethernet adapter tomorrow, and it should be configured to have a static IP address : 192.168.121.1 and NetMask 255.255.255.0
For the time being, we are using Tom's laptop. 

The HV board from Naples did not turn on: Yury gave it to the CAEN guys to check and/or bring back for replacement.

Yi and Luigi rented a new HV module (A1519). The HV module (A1520P) we used for tests of the I-V script is also present in the Mainframe (see below).
The first 24 channels (slots 0 and 1) are therefore HV. If the new HV does not show up on time we'll try and adapt the cables to work with A1519.

The A2517A module is LV. This is currently operated from the DAQ pc using CAEN_HVPSS_ChannelsController.jnlp (located in the Desktop/SteeringModule folder).
The three low voltage channels (0,1,2) should be turned on at the same time by setting Pw = ON.

Settings: 

Channel 0 and 1: I0Set = 2.0 A , V0Set = 2.5 V ,  UNVThr = 0 V, OVVThr = 3.0 V, Intck = Disabled
IMon = 1.44 (this depends on the illumination) , VMon = 2.48 V , VCon = 2.79 V

Channel 2: I0Set = 1.0 A , V0Set = 5.0 V ,  UNVThr = 0 V, OVVThr = 5.5 V, Intck = Disabled
IMon = 0.07 , VMon = 4.998 V , VCon = 5.02 V

In case the channels trip they cannot be ramped back up unless the alarms are cleared.

For a few days we were unable to access ds-proto-daq remotely. We were also unable to reach the outside world from ds-proto-daq.

To gain more control over the network settings, I have disabled the automatic configuration by dracut. I created the file /etc/dracut.conf.d/no-ifcfg.conf with the single line `omit_dracutmodules+="ifcfg"`.

I then set the following contents in /etc/sysconfig/network-scripts:

# cat ifcfg-enp0s31f6
NAME=enp0s31f6
DEVICE=enp0s31f6
ONBOOT=yes
NETBOOT=yes
UUID=4887c207-13da-4424-8307-116ef2163fd8
IPV6INIT=no
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
HWADDR=18:31:BF:2E:00:12
BOOTPROTO=dhcp
IPV6_PRIVACY=no
AUTOCONNECT_PRIORITY=1
DNS1=137.138.16.5
DNS2=137.138.17.5
PEERDNS=no


# cat ifcfg-enp5s0
TYPE=Ethernet
PROXY_METHOD=None
BROWSER_ONLY=no
BOOTPROTO=static
DHCPCLASS=
IPADDR=192.168.1.1
PREFIX=24
NETMASK=255.255.255.0
GATEWAY=
DEFROUTE=no
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
HWADDR=68:05:CA:8E:66:5C
ONBOOT=yes
DEVICE=enp5s0


Network settings are now correct, and have survived a reboot. We are able to talk to both the local network and the outside world. We are also able to connect to ds-proto-daq from lxplus, and via the web proxy.

After booting, the elog was only showing logs from before July, and was missing the "For Shifters" category. It appears we were loading the incorrect config file. The running command was:

/usr/sbin/elogd -D -c /etc/elogd.cfg -s /usr/share/elog/ -d /var/lib/elog/logbooks/

while it should have been:

/usr/sbin/elogd -D -x -c /home/dsproto/online/elog/elogd.cfg -s /usr/share/elog


rc.local was set up to run the latter command, but rc.local~ had the prior version. Perhaps that was being picked up. I have deleted the rc.local~ version, and will see if elog starts correctly next time we reboot.

Ramp down the fields, in 200V steps.
Nominal values:
1st ring: 4180 V
wire gate: 3780 V
cathode: 6180 V

Gas pocket: ON

Fields: OFF

Threshold: 400 ADCc below baseline

Threshold extend:  5x16 = 80ns

Comment: Noise appeared on event 4200

Ramp UP the fields, in 100V steps.

Nominal values:
1st ring: 4180 V
wire gate: 3780 V
cathode: 6180 V

Gas pocket: ON

Fields: ON

Threshold: 200 ADCc below baseline

Threshold extend:  5x16 = 80ns

Comment: Noise appeared on event 48500

Gas pocket: ON

Fields: ON (wire gate 3780 V, 1st ring 4180 V, cathode 6180 V)

Threshold: 200 ADCc below baseline

Threshold extend:  5x16 = 80ns

TPC Pressure: 242 mbarg

SiPM HV: 65V

Comment: noise conditions good, 1e5 evts

Gas pocket: ON

Fields: drift field ON (1st ring 4180 V, cathode 6180 V), extraction field OFF (wire gate 0 V)

Threshold: 200 ADCc below baseline

Threshold extend:  5x16 = 80ns

TPC Pressure: 244 mbarg

SiPM HV: 65 V

Comment: noise conditions good, 1e5 evts