On 30. and 31.03.2021 we did some testing with the 6 BaF detectors.

Trigger & threshold:
With a threshold at ~250 keV, each detector has an trigger rate of about 0.5kHz due to internal activity.

Energy spectra
All detectors showed the Na22 lines (511 + 1275 keV) and also the lines from internal activity.
The energy resolution was on the order of 8.5 - 11 keV, depending on the detector.

Time spectra
Raw TDC spectra showed self-stop peak.
TDC diff spectra (between detectors) show one main (sharp) correlation peak about 8ns = 30ch*0.293ns/ch off the zero. 
At very low intensity a time structure around this peak is visible in a region of 120ns around the main peak. This is not understood, the energy spectra look similar for all these time regions (above/on/below the main peak).
Additionally, the coincidence E-specta between detector 1 and 2 (gating on the main time peak), nicely showed only the 511 keV line from Na22 and some gras.

Overnight test run:
Det. 1, 2, 3, 4 with the Na22 source

lxg1275:/data.local3/e127/lmd_2021/test/
e127b_run0021.lmd
e127b_run0022.lmd
e127b_run0023.lmd
e127b_run0024.lmd
e127b_run0025.lmd
e127b_run0026.lmd
e127b_run0027.lmd
e127b_run0028.lmd
e127b_run0029.lmd
e127b_run0030.lmd
e127b_run0031.lmd
e127b_run0032.lmd
e127b_run0033.lmd
e127b_run0034.lmd

Gain matched HV settings: https://elog.gsi.de/esr/E127/289

Issues to solve:
- 2 missing HV channels
- Go4 Analysis not stable
- trigger not on Baf but on Si

The UI-curve of the detector
U I
10 0.11
20 0.13
30 0.15
40 0.17
50 0.19
60 0.21
70 0.22
80 0.23
90 0.25
100 0.27
110 0.29
120 0.31
130 0.33
140 0.35
150 0.37

When the readout/control of the det. weight control via serial connection is active, there is a clear signal induced in the Xray detectors for each command sent.

The solution for now is, that we activate weight control NOT DURING MEASUREMENT!

attached are the settings for all MSCFs.
Settings are optimized for DSSD only, not BaF!

Si was moved from -25 mm to -19 mm before run 0072.

Jan is filling the detector after run0137.

************************************
GEM1800 @ 90deg (xray1) 
GLP2000 @ 35deg (xray2)
GEM3000 @ 145deg (xray3)
************************************

Was noted wrongly in most calib runs.

We now have a drasi DAQ running for our (p,g) experiments.
The RIO we have it installed right now is: r4l-58
It shall be used with the user <litv-exp>

The DAQ-controle shall be done from lxg1275 inside a SCREEN SESSION named "daq"
tab 0 >> drasi 
tab 1 >> logger
tab 2 >> rate
tab 3 >> stream server
tab 4 >> file writing (optional)

To check and control running daq:

login on lxg1275
> ssh litv-exp@lxg1275

enter screen session
> screen -x daq

DRASI
go to tab 0
> ctrl-a 0 
should be quite, no errors showing, no terminal outputs
full restart proceedure
> ssh r4l-58
> cd esrdaq_2018/r4l-58
> ./start.sh (for det. triggered daq)
> ./pulser.sh (for internal pulser trigger)
> ctrl-c (for killing daq)

LOGGER
go to tab 1
> ctrl-a 1
should be quite, no errors showing, no terminal outputs
full restart proceedure
> ssh r4l-58
> cd esrdaq_2018/r4l-58
> ./logger.sh

RATE MONITOR
go to tab 2
> ctrl-a 2
rates should update each second
"incr" should be event rate per sec 
"send" column should be reasonable value if data is written
full restart proceedure
> ssh r4l-58
> cd esrdaq_2018/r4l-58
> ./rate.sh

EMPTY STREAM SERVER
go to tab 3
> ctrl-a 3 
empty stream should be running  
number of processed events should keep increasing
you should see the number of clients connected
full restart proceedure (on lxg1275)
> empty stream://r4l-58 --server=stream:6002

WRITE A FILE
can be done by litv-exp from any lgx-machine
ROOT FILE:
> e127_unpack --stream=lxg1275 --ntuple=RAW,/data.local1/e127/pre_data/file.root
LMD FILE:
> e127_unpack --stream=lxg1275 --output=/data.local1/e127/pre_data/test.lmd
 

If you need to add or change a module of the VME crate you need to follow this proceedure:

1. stop DRASI
2. add/change module in esrdaq_2018/r4l-58/main.cfg 
   a. add module name and VME address: CAEN_V830 (0x00A00000) {}
   b. use BARRIER keyword between the modules
3. restart DRASI (e.g. ./pulser.sh)
4. check empty unpacker data output
   > empty --stream=r4l-58 --print --data
   should run without error and now have your new module event data
5. adjust unpacker in ~/e127/unpackexps/esr
   a. make sure you have a .spec file defining readout of you module, e.g. "vme_caen_v775.spec" 
   b. edit main_user_esr.spec
      - add module as e.g. "tdc[0] = VME_CAEN_V775(geom=0x2, crate=0);"
      - select "geom=0x1" value according to ascending order of all modules (0x1, 0x2, 0x3, ...)
   c. edit det_mapping.hh 
      - add SIGNAL() keyword for your module
      - e.g.: SIGNAL( TDC_1, esr.tdc[0].data[0],TDC_32, esr.tdc[0].data[31], DATA12); 
      - choose data format, e.g. "DATA12", as specified in module .spec-file
   d. compile your unpacker: 
      > make -j
   e. try it out:
      > ./esr --stream=r4l-58 --print --data
      - should run without errors 
      > ./esr --stream=r4l-58 --ntuple=RAW,/dir/file.root
      - root-file should have your new branches with your module data

The DAQ located in 

../esrdaq_2018/r4l-58/ 
currently includes the readout of
MADC
Caen 775 TDC
Caen 830 Scaler
MDPP-16

../esrdaq_2018/r4l-58_rewind/
is without the MDPP-16:
MADC
Caen 775 TDC
Caen 830 Scaler

the DAQ located in
../esrdaq_2018/r4l-58_dev/

currently includes
2x MADC
2x Caen V775 TDC
2x Caen V830 Scaler




> The DAQ located in 
> 
> ../esrdaq_2018/r4l-58/ 
> currently includes the readout of
> MADC
> Caen 775 TDC
> Caen 830 Scaler
> MDPP-16
> 
> ../esrdaq_2018/r4l-58_rewind/
> is without the MDPP-16:
> MADC
> Caen 775 TDC
> Caen 830 Scaler

• r4l-58 - VME cpu (RIO)
  our DAQ runs on this computer
  access from lxg1275 via ssh litv-exp@r4l-58
  the current DAQ directory is /esr/usr/litv-exp/2020_e127/r4l-58
  from lxg-machines the DAQ dir can also be accessed via the mount point at /lynx/Lynx/esr/usr/litv-exp/2020_e127/r4l-58
  
  
• lxg1275 - main DAQ handler
  used for communication with the DAQ and primary data writing/streaming
  access from any lxg via ssh litv-exp@lxg1275
  primary data folder: /data.local3/e127/lmd/
  local backup folder: /data.local2/e127/lmd_backup/
  
  
• lxg1299 - online monitoring
  used for the R3Broot online monitor server
  access from any lxg via ssh litv-exp@lxg1299
  online data: /data.local3/e127/online/
  
  
• atpnu004 - slow control
  used for remote access to SpecAmps (MesyTec Shapers), Si-HV (caen) and picoscopes
  access from any lxg via E127_nuc or ssh litv-exp@atpnuc004
  screen sessions: mesy_ioc (shapers), caen_ioc (Si HV)
  access screens by screen -x mesy_ioc or screen -x caen_ioc (exit with [Ctrl-a d])
  access vnc session for picoscopes on any lxg: E127_vnc or vncviewer atpnuc004:1
  
  
• apraspi001 - slow control 2
  used for remote access to the BaF HV crate
  access from any lxg via ssh litv-exp@apraspi001
  local access to HV control by telnet: telnet 169.254.93.160 1527
  
  
• lxg0188 - 1st backup node
  used for direct backup of the written data (invoked automatically by stopping a run)
  backup dir: /data.local2/E127_lmd/
  
  
• kronos.hpc.gsi.de - 2nd backup node
  used for secondary backup of lmd-data on lxg0188 (chronjob every 4 hours)
  backup dir: /lustre/ap/litv-exp/2020-03-17_E127_jglorius
  

• E127_daq or /data.local1/e127/scripts/E127_start_gui.sh
  this is the GUI to control the DAQ
  available on lxg1275 only with litv-exp user
  only one instance of this GUI can run at the same time!
  
  
• E127_unpack or /u/litv-exp/unpacker/unpackexps/e127/e127
  this is the unpacker for the current DAQ
  available on any lxg with litv-exp user
  to unpack lmd-files to root-file: E127_unpack infile01.lmd infile02.lmd --ntuple=RAW,outfile.root
  
  
• E127_epics or epicsfind; medm -x /u/litv-exp/e127/medm/e127.adl
  this is the GUI for slow control of Si HV and amplifiers (MesyTec Shapers)
  available on any lxg with litv-exp user
  
  
• E127_rates or /u/litv-exp/e127/UDP/build_cc_x86_64-linux-gnu_4.9.2_debug/udp_reader --trig --rate
  this is the UDP reader for detector and trigger rates
  available on lxg1275 only with litv-exp user