The PLEIADES team (pocket detectors) has discussed with Wolfram to get access to the ESR tomorrow (Thu) morning ~8:00 to check their detectors and install a dry N2 flow connection. This might take about 1h. Iris (or Jan) will call the HKR to get the RP shift for the transport of the N2 bottle into the ESR. Morning shift will be informed accordingly when we are onsite, just keep running (keep running...keep running...keep running) until we get access.

The spill cycle distributions is absolutely nuts since beginning of the shift. On the positive side: we got a lot of spills since FRS did not take many, so I think we got more than our parasitic 1:10 share...

In summary, the statistical results collected between 5:00 and 12:00 AM on April 2, 2025. For each injection, we calculate the frequency mean value 
(f_mean) and the peak height (P) of 194Pb ions for frames with t > 0.14 s, correct each injection’s frequency by subtracting f_mean, and only sum 
the 
spectra from injections with P > 100; moreover, by comparing the 194Pb82+ spectrum with that of 184Pt78+—whose isomer at 1.8 MeV (T1/2 = 1 ms) is 
clearly visible—the setup is demonstrated to be suitable for detecting an isomer with a lifetime of about 1 ms.
===================================================================
How to dod analysis and plot this result:
1. Add up injections and create accumulated spectrum.
(pyroot) gpuuser@appc256:/data.local/G22-00018_00203/scripts/OnlineDataAnalysisSystem/shift/20250331/data$ sh generate_data.sh /data.local/G22-
00018_00203/results/analyzers/RSA01 RSA01- 
'*.tiq_spectrogram.npz' 2025.04.02.05.00.00.000 2025.04.02.12.00.00.000 0.001 408.59e6 408.62e6 0.1 1

After run this command, you will create the accumulated spectrum under the folder with time stamp of start time and stop time.

2. Download the code "plot_fft.cxx" and plot the spectrum with following command:
...2025.04.02.05.00.00.000_2025.04.02.12.00.00.000$ root
   ------------------------------------------------------------------
  | Welcome to ROOT 6.32.10                        https://root.cern |
  | (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
  | Built for linuxx8664gcc on Feb 12 2025, 01:50:41                 |
  | From tags/6-32-10@6-32-10                                        |
  | With                                                             |
  | Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q'  |
   ------------------------------------------------------------------

root [0] .L plot_fft.cxx
root [1] plot_fft("2025.4.2 5:00~12:00",411.14e6,411.18e6,0,100)

NTCAP was stopped and restarted.

beam is back, we started DAQ again. All files created after 15:45 should be good from now on.

The (power supply of) SIS kicker magnet has been repaired and the beam has been restored from about 14:20.
But, the Schottky spectrum in the ESR looked pretty bad, so the measurement can not be restarted. 
The accelerator experts are currently looking into this problem.

Since there will be no beam for about one hour, the data taking in RSAs has been stopped.

There is no beam in the ESR since couple of minutes. According to the info from HKR, the experts started to repair the magnets (power supplies) used for extraction and transfer of the beam from SIS to ESR. It is estimated to take about 1 hour.

Operators seem to play with spill cycles, we get every 1:1 shot, then 1:10 again. During this, we noticed a few "empty injections" beeing triggered in the RSAs. They light up green, but spectrum is flat. Then it returns to normal operation again.

We have the beam again the ESR since around 11:00.
The Schottky spectra look the same as before.
The ESR experts could not exactly identify the problem which caused this loss of the beam.

Since few minutes do not see any beam in the ESR (on RSAs). There is beam in SIS and injection requests from the ESR seem to be there as well.

The SIS kicker has failed again.

At around 9:40, ESR timeout changed from 10 s to 30 s
Triggering only on real injections.
Before that, every second injection was not real but the old one. They can be identified since they should have no "kicker" disturbance.

Since the FRS started to take the beam again, the ESR gets 1/10 shots from SIS. But, the ESR seems to request about twice more frequently the beam from SIS which means that every second shot in the ESR is empty (it contains the remaining beam from the previous injection). This also applies to the data stored by RSAs because they also (seem to) trigger each time the ESR requests the beam.

The beam is back. But, the experts have found a problem with one of the modules of the SIS kicker magnet. And, currently they have disabled this module. This fixed the problem. However, since the kicker system is not running with full power, it is not clear by how much this can affect the extracted beam intensity for the ESR. Therefore,  the ESR experts have been called and they will look at the injected beam intensity in the ring, in order to know if its still the same as before disabling the module. 
The experts will discuss at the upcoming meeting how to proceed with the damaged module, i.e. when to repair it.
In addition, the FRS started to take the beam now (again) which means that we will be getting less pulses from SIS as compared to the previous night.