Attached are plots for Si-pad 2 with hits from ionization of 206Pb81+ at the target.
The plots are representative for all Si-pads, the pattern is always the same!

y-axis: E n-side
x-axis: E p-side strip
condition: E_gate on peak in CsI

While strips 1, 2 and 7 look fine, strips 3 and 6 show already signs of degradation. 
For strips 4 and 5, it is clearly visible that something is wrong.
Those are the central strips, which probably see the most rate.

The same dataset was analyzed here: https://elog.gsi.de/esr/E121/62

This might be a hint to a radiation damage or to the fact that we operate at too low bias voltage (32 Volt).
Maybe it recovers if we increase bias to 60 Volt.

We identified an issue with randomly missing adc channels in all lmd-files before run 0273.
This led to errors in the unpacking process. 

This issue is solved with the new config and mapping for the unpacker. 
The respective files are attached here. 
The unpacker is ready to use in /u/litv-exp/unpacker/unpackexps/E121

The adc issue is also understood. We deactivated the internal adc thresholds during the experiment, because we encountered the very same unpacker errors. This solved the problem for all later runs, but we forgot to think about a solution for the earlier runs. 
Mea culpa.

Jan 

Attached is the f_user.c and the mbslog.l files.
The readout function is for the following setup:
3x ADC CAEN V785 
1x SCA CAEN V830
1x TDC CAEN V1190
1x Vulom TRB5 (triggerbox)
1x Vulom4b PEV (priority encoder)
1x TRIVA7
1x RIO4 R4L-47

  root [1] .L e121_analysis.C++
  root [2] run()

#include "e121_raw.h"

#include "e121_mapped.h"

Attached is a list of all set values for the 5 MSCF shaper modules.
This was done prior to run0251, which served as a final benchmark for those settings.
See: https://elog.gsi.de/esr/E121/62
And https://elog.gsi.de/esr/E121/104

The det. to MSCF assignment is the following:
MSCF 1: Si-pad 1 + 2 p-side/strips (ch. 1-7 + ch. 9-15)
MSCF 2: Si-pad 3 + 4 p-side/strips (ch. 1-7 + ch. 9-15)
MSCF 3: Si-pad 5     p-side/strips (ch. 1-7)
MSCF 4: Si-pad 6     p-side/strips (ch. 1-7)
MSCF 5: DSSD (ch. 1 - 4); CsI (ch. 7 & 8); Si-pad n-sides (ch. 11 - 16)

Note that only the pre-amplification stage of the MSI-8 amplifiers were used for all channels.

attached is a document showing fotos of all involved amplifiers in the chain to document the manual settings active during the experiment.

Summary:
Si-pad n-sides [MSI-8 (1)] were set to 5 GeV      (expected E-deposition ~2 GeV)
Si-pad p-sides [MPR-32 (1 & 2)] were set to 1 GeV (expected E-deposition ~2 GeV)
DSSD channels  [MSI-8 (2)] were set to 5 GeV      (expected E-deposition ~1.2 GeV)
CsI channels   [MSI-8 (2)] were set to 4 GeV      (expected E-deposition  46 GeV)

It seems we got clipped signals from the Si-pad p-sides, because the MPR-32 were saturated due to a wrong gain setting. 
This might explain, why there was not real influence on the spectra when adjusting MSCF settings for those channels.
 
I cannot comment on the CsI gain setting, because i don't know whether the given GeV-range by MesyTec directly applies for CsI & photodiode.

However, for DSSD and Si-pad n-sides the settings look okay.

The frequency of the clock used as reference in scaler channel 13 has been measured precisely.
In contrast to what was expected (1.5MHz precisely), it is: 

f_ref =  1.5625(5) MHz

Yuri and Sergey (on phone) have investigated extensively the problem with having no beam in the ESR. The FRS has been checked and seems OK. The ESR is fine as well.
The problem seems to be the timing. Ths SIS and the ESR seem to be completely out of synchronization. The on-call service for the control system has been called. 

We see two species in the Schottky spectra during the beam lifetime measurement without the target. The one (probably the primiary beam) is significantly better cooled than the other.
So, we were wondering what is the other beam? Maybe the recombined ones?

The beam in ESR was lost suddenly at ~22:20 due to a power supply failure of the quadrupoles.

Update (~20:40): Failure was resolved and new stacking started.

Ragan and Ruijiu went in the ESR for short time to fix something with the slow control of the silicon detector.
After this, there is no beam in the ESR.