| ID |
Date |
Author |
Category |
Subject |
|
182
|
Thu Jul 1 21:35:15 2021 |
Shahab | DAQ | increase factor 4 in power for 410 |
increase factor 4 in power for 410
before:
410MHz-2021.07.01.18.48.07.516.tiq.png
after:
410MHz-2021.07.01.19.23.49.099.tiq.png |
|
54
|
Fri May 7 18:08:35 2021 |
Kanika, Sergey, Yuri, Wolfram, Michael, Shahab | Runs | going back to the original energy |
going back to the original energy 441 MeV/u
last filenames with the previous energy:
245: 2021.05.07.17.07.00.543
410: 2021.05.07.18.07.18.037 |
|
131
|
Mon May 10 06:35:58 2021 |
Kanika, Alex, Shahab | Runs | going back to shot by shot recording with 410 detector |
going back to shot by shot recording with 410 detector |
|
64
|
Sat May 8 01:33:25 2021 |
Helmut Weick | Simulations | frequency list for 70Se setting |
EXCEL table with all possible fragments injected into ESR.
The path length in ESR, gamma_t and harmonic are adjusted to the 72Ge data.
Some lifetimes are limited but all intense lines are >30s in lab system.
There are two versions (for cooled beam with fixed v or uncooled (isochronous)
with fixed average Brho, take the second (grey) column.
For larger frequency shifts harmonics will overlap.
You can add more isomers. |
| Attachment 1: freq-lines-70Se.JPG
|
|
| Attachment 2: frag-freq-list.xlsx
|
|
1
|
Fri Apr 23 13:47:55 2021 |
Jan Glorius | Collaboration | experiment proposal |
|
| Attachment 1: ESR_Two-Photon_proposal_final.pdf
|
|
|
198
|
Fri Jul 2 05:08:16 2021 |
Guy Leckenby (Canadian beaver team) | Analysis | e143_analyser.py Summing Script |
I've written two scripts that others might find useful for the on-line analysis.
1. The first is a simple bash script that runs a for loop to run the e143_analyzer.py script for a sequence of start values (-s). You'll need to change the increment and
start/end of the for loop to set the time resolution.
2. The second is a root script that takes the above generated scripts, reads the histograms, and then fills a 2D histogram. You'll need to adjust the TH2 bin number to
match both the bin number of the TH1s and the number of analysed files. I've included a print line to help identify the TH1 bin number.
To see the first results, I've attached a sum of July 1st 22-23h data. Sadly, I don't see any indication of the isomer, or at least the production is very low. |
| Attachment 1: e143_sum_ana.bash
|
#!/usr/bin/env bash
for i in $(seq 0 0.02 2)
do
python e143_analyzer.py -t 0.02 -s $i -o 410MHz-07.01.22h_s${i}_t0.02 E143_Data/sparc-daq-02.gsi.de/E143-410MHz/410MHz-2021.07.01.22*.tiq
done
|
| Attachment 2: e143_comparison.C
|
#define e143_comparison_cxx
#include <iostream>
#include <math.h>
#include <vector>
#include "TROOT.h"
#include "TFile.h"
#include "TChain.h"
#include "TTree.h"
#include "TBranch.h"
#include "TCanvas.h"
#include "TGraph.h"
#include "TGraphPainter.h"
#include "TColor.h"
#include "TH1.h"
#include "TH2.h"
#include "TH3.h"
#include "TH1F.h"
#include "TH2F.h"
#include "TH3F.h"
#include "THStack.h"
#include "THistPainter.h"
using namespace std;
void e143_comparison()
{
TH2 *h1vt_410MHz_07m01d22h_10ms = new TH2F("h1vt_410MHz_07m01d22h_10ms","410Mhz 07.01.22h Additiion (10 ms res);frequency (Hz);time (s)",256,4.06704e+08,4.06753e+08,200,0,2);
int nframes = 200;
vector<TFile*> tf_frames;
vector<TH1*> h1_frames(nframes,NULL);
char chname[300];
for(int i=0; i<nframes; i++)
{
sprintf(chname,"E143_Results/410MHz-07.01.22h_s%.2f_t0.01.root",i*0.01);
//cout << chname << endl;
tf_frames.push_back(new TFile(chname));
tf_frames[i]->GetObject("th1f",h1_frames[i]);
for(long j=0; j<256; j++)
{
h1vt_410MHz_07m01d22h_10ms->SetBinContent(j+1, i+1, h1_frames[i]->GetBinContent(j));
}
}
cout << "Total Bins: " << h1_frames[100]->GetNbinsX() << ", Xlow: " << h1_frames[100]->GetBinCenter(1) << ", Xhigh: " << h1_frames[100]->GetBinCenter(h1_frames[100]->GetNbinsX()) << endl;
TCanvas *c1 = new TCanvas("c1","c1",50,50,1000,800);
h1vt_410MHz_07m01d22h_10ms->Draw("COLZ");
TFile *fhists = new TFile("e143_added_th2s.root","RECREATE");
h1vt_410MHz_07m01d22h_10ms->Write();
cout << "Written h1vt_410MHz_07m01d22h_10ms to file." << endl;
fhists->Close();
}
int main ()
{
e143_comparison();
return 0;
}
|
| Attachment 3: 410MHz-07.01.22h-sum_20ms.png
|
|
|
206
|
Fri Jul 2 12:18:35 2021 |
Pavlos, Alexandre | Accelerator | e-cooling |
Sergey Litvinov will now try to setup the e-cooler to cool the beam in the ESR.
The data taking has been stopped (except the NTCAP). |
|
191
|
Fri Jul 2 01:39:51 2021 |
IK, KK | Runs | drop of intensity |
We see a drop in beam intensity from 7E9 to 2E8 between 01:30 and 01:43 |
|
194
|
Fri Jul 2 03:10:03 2021 |
IK, KK | Runs | drop of intensity |
We see that intensity stabalized at 9E8 which is smaller then before.
We neticed this at 2:50, keep observing. |
|
195
|
Fri Jul 2 03:19:49 2021 |
IK, KK | Runs | drop of intensity |
And the intensity is back again to 5E9 at 03:20 |
|
156
|
Wed Jun 30 15:21:44 2021 |
Shahab | Runs | data synch on WWW server |
Data is being shared on the WWW server.
Time difference between the analyzers is in order of seconds:
time stamp of the 245MHz data is leading those of 410MHz by 21.733 [s] |
|
5
|
Tue May 4 18:25:31 2021 |
Helmut Weick | Simulations | cutting of primary beam |
The slits at TE4 and TE5 can be used to cut away the unwanted 78Kr beam (see pictures).
We do not want activation of the beamline. 78Kr35+ even has a chance of being injected. |
| Attachment 1: TE4-slits.JPG
|
|
| Attachment 2: TE5-slits.JPG
|
|
|
6
|
Tue May 4 21:49:04 2021 |
Helmut Weick | Simulations | cut Brho by scrapers |
The dispersion from the production target into the ESR is not matched.
This is not good for momentum acceptance, but we anyway want to cut the acceptance.
Dispersion will oscillate with the tune of ESR. After 3 turns we expect a maximum dispersion.
The picture shows in red the dispersion curve for dp/p=0.1% and beam envelopes of 10 mm mrad.
So we can use scrapers in north or south arc to cut Brho. It should be done from both sides.
How much? Watch the intensity drop.
Best positions look at plot. Straight section outside for low Brho, arc outside for high Brho.
Could be EEXDS2HA and E02DSH (outside). |
| Attachment 1: dispersion-oscillaction.JPG
|
|
|
137
|
Tue Jun 29 10:32:10 2021 |
Sergey, Helmut | Accelerator | cooler curves for tuning of isochronicity |
Variation of quadrupole E01QS03D to change gamma_t in isoc. mode
measured with 78Kr at 368.5 MeV/u on 28.06.2021 evening.
The shape of the three curves looks very similar they would only require a different beam velocity.
But I suppose we stay with the value close to the old one (gamma_t ~ 1.3956). |
| Attachment 1: isoc_curves.JPG
|
|
| Attachment 2: iso_curves_june_2021_1.xlsx
|
|
110
|
Sun May 9 18:50:23 2021 |
Helmut, Wolfram, Yuri | Accelerator | changed to 70Se |
18:45 changed SIS, ESR setting for 70Se without predrilling blind change.
E-SIS = 446.55 MeV/u, is centerd as before on TE3UF target grid.
set beamline after taret as 78Kr 36+ E = 337.375 MeV/u
set ESR to A = 70, Z=34 at isochronous E/m + 0.8 MeV/u = 369.2 MeV/u
kicker delay unchanged
4 quadrupoles failed during the change, skip cycle and reset, they work again, (GE01QS0D, GE01QS1F, GE01QS2F, GE01QS4F)
Now many lines in Schottky.
also 2 corrector coils were off, on again, now good resolution. |
|
138
|
Tue Jun 29 20:13:58 2021 |
Helmut, Sergey, Yuri | Accelerator | change to predrilling an 72Ge |
After optimisation of sextupoles we found a scraper position which makes a narrow peak and keeps 20% of the injected beam.
GEEXDS2HA = +2.0 mm (out is +130mm)
GE01DS_HI = -75 mm (out is -130mm)
removed scrapers again for predrilling.
We agree on gamma_t = 1.3956, E/m = 368.50 MeV/u.
Then for 78Kr at Brho = 6.79675 Tm of isoc 72Ge
E-SIS = 466.63 MeV/u, assume target of 1815 mg/cm² Be
after target E/m = 393.024 MeV/u
In ESR-Modi set for same E/m but different m/q (m=72, Z=q=32)
Injection looks good like before with isochronous 78Kr we go directly to the next step
72Ge with E-SIS = 440.16 MeV/u to get 72Ge at gamma_t. |
|
115
|
Sun May 9 22:31:23 2021 |
Helmut, Wolfram, Yuri | Accelerator | change to 72Ge |
we change back to 72Ge
just change SIS-energy E = 441.0 MeV/u
beamline energy after target E = 392.9 MeV/u
set ESR to A=72, Z=32 (72Ge)
--> good injection and resolution in ESR, at old frequencies |
|
86
|
Sun May 9 01:49:25 2021 |
Helmut, Sergey, Yuri | Accelerator | change to 52Mn |
It was done in steps:
isochronous 52Mn should come at Brho = 6.28239 Tm (gamma_t = 1.3955).
set ESR to m/q and E for 52Mn, 368.41 MeV/u
1.) predrilling 1st try
- set beamline to E, q for 52Mn and m = 51.9319 u by trim
- E-SIS = 422.1 MeV/u
but then not centred on profile grids, with thick Be target in
-15mm on TE4DGC also not on Lecuhttarget, not good
2.) pre-predrilling 2nd try
don't set beamline for 52Mn but define it as 78Kr, in trim mass back to 77.92 u.
insert Cu-40 mg/cm² and inject, just use dE = 1.5 MeV/u in stripper for SIS-energy (343.353 + 1.5) MeV/u
optimise a bit, then keep beamline energy set as 78Kr36+ beam the same.
3.) pre-drilling 422.1 MeV/u in SIS
insert Be target and optimise with kicker and septum angle,
energy also tried but back to old value, reache 6 - 7 % transmission
4.) change E-SIS to 440.7 MeV/u to get 52Mn in ESR at gamma_t |
|
55
|
Fri May 7 18:43:13 2021 |
Kanika, Michael, Shahab | Runs | cave M experiment needs more spills |
our pattern causes beam loss while scanning the biological probes in the Cave M bio experiment. They loose every other spill due to high request rate from ESR.
For the next 2 hours, the operators have changed the spill pattern that as long as they are scanning , we get only every 1 minute, otherwise we get our 15 seconds as usual.
after two hours this situation should be tuned back to the original spill pattern. |
| Attachment 1: rep.jpg
|
|
|
59
|
Fri May 7 22:00:36 2021 |
Chris | Accelerator | brief beam loss |
Brief interruption in beam, ~21:42-21:51. |