| Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| Fixed | e793s |
Tue Mar 10 18:46:13 2020 |
Franco & Marlène | GRIT | Hardware | | Changes in MUGAST | - MG6 (FZ) is disconnected.
- MG7 (500um) is dismounted and MG8 (375um) is replacing it.
- The Y kapton of the annular has been changed.
Attached the alpha source spectra acquired on March 11th after the changes described above.
- MG8 looks better than MG7 but it looks like a part on X that was missing on MG7 is also missing on MG8, it can be due to a kapton.
- The annular behaves exactly as before and during e775s, the change of kapton did not solve the problem.
- MG9 here was not biased (it is on the MUST2 box). |
| Fixed | e793s |
Thu Mar 12 15:48:58 2020 |
Franco&Marlène | GRIT | General | | Summary and TO DO list 12/03/2020 | What remains to be done
- Do the time calibration of all boards (time calibrator has to be connected)
. When checking the pulser on all boards we saw that MG5 has no triggers on Y and MG9 does not see the pulser (neither X or Y). So we will not get time calibration for those
- Plug the STOP in the MUVI (either clean HF that was used in the previous experiment or CATS2 clean that was also prepared during the last experiment but should be connected)
- Rename parameters in the GECO of the experiment
. We now run only with 3 MUVI, MG9 (square) is put in channel 3 of MUVI2 (where MG6 was plugged before)
. We changed the names for the ACTION_mugast.CHC_PAR but it has to be done for the experiment file)
- Targets will be mounted last week before the experiment. The surveyor have to remeasure the position of all targets.
- hvm_watcher has to be modified according to the changes made on the distribution boxes :
. MG9 is on the LV/BT of the new distribution box on channel 6
. MM1 is on channel 5 of the MUST2 distribution box (instead of channel 1).
We noticed instabilities in the current of the MUST2 detectors : T1 is fluctuating from time to time and T2 current is increasing slowly but surely.
We now run with 60V on MM1 and MM2 and 70V on MM3 and MM4.
The fluctuations on MM1 are usually solved when cooling down to 0 degree.
!! We do not leave HV and LV on when there is nobody to check the temperature of the boards and the coolers. |
| | |
Tue May 19 12:23:57 2020 |
mugast | ONLINE | | | | |
| Fixed | e793s |
Fri Mar 5 16:16:28 2021 |
mugast | DAQ | Software | | Pedestals for E793S | Pedestal alignment was performed for Energy qnd Time for all cards with cooling at 0°.
The values are attached here and saved in : cd ganacq_manip/mugast/das-save/pedestal-save/pedestal_5march2021_15h54/ |
| Fixed | e793s |
Wed Mar 10 15:15:44 2021 |
Charlie | OTHER | General | | 48Ti Kinematics (additional) | Supplementary to Adrien's kinematic calculations of 47Ti(d,p)48Ti, we have found a paper suggesting that by far the most strongly populated state in 48Ti is at 5.65 MeV. There is also a doublet of strong states at around 4.4 MeV, and two more strongly populated states at 6.06 and 6.33 MeV.
See attachment for the full table from P. D. Barnes (1965), Phys.Rev.138.B597.
Some quick CatKin models also show that a (theoretical) state at 7 MeV in 48Ti would almost perfectly overlap with the ground state of 48K. As such, when looking at the lab energy with the g.s. of 48K normalised to 0, we could expect to see these strongly populated 48Ti states at -0.67, -0.94, -1.35 and -2.6 MeV (for 6.3, 6.06, 5.65 and 4.4 MeV, respectively).
See the attached plot for kinematics of 47K(d,p)48K @ 0 MeV and 4 MeV, as well as 47Ti(d,p)48Ti @ 0 MeV, 5.65 MeV and the theoretical 7 MeV. Additionally, see a mock-up of the expected spectra from Wilton. |
| Fixed | e793s |
Wed Mar 10 18:22:01 2021 |
Taras, Nishu, Chloe | RUN | General | | status screenshot | |
| Ongoing | e793s |
Wed Mar 10 21:09:25 2021 |
mugast (Adrien, Nigel et co) | BEAM | General | | Primary beam issues |
The secondary beam intensity has been fluctuating around 4 - 5 x 10**5 Hz most of the evening. 15 mins ago it was realised that it had dropped off to only 1 x 10**5 Hz. As suspected, PCP confirmed that primary beam intensity has dropped off. They are investigating ...
It would be good to have the TI (primary beam intensity) available to monitor here in the daq room. |
| Pending | e793s |
Wed Mar 10 23:37:23 2021 |
Nishu, Chloe, Taras | RUN | General | | FAG value increased | | Around 11:30 pm FAg value increased from usual 60-70 units to 140 units. It is suspected that MUGAST increased the trigger rate. |
| Fixed | e793s |
Fri Mar 12 10:07:29 2021 |
mugast | MECH | Hardware | | Leak |
https://www.hometree.co.uk/energy-advice/home-cover/common-water-leaks-and-how-to-fix-them.html |
| Ongoing | e793s |
Fri Mar 12 12:58:10 2021 |
Emmanuel C | OFFLINE | General | | Gamma Gamma Analysis | |
| Fixed | e793s |
Sat Mar 13 10:14:16 2021 |
Lynda, Laetitia, Chloe | VAMOS | General | | Vamos tripped @ 10:10 & fixed | Vamos tripped around 10:10. we switched back 3 HV on
Online spectra reset to check |
| Fixed | e793s |
Sat Mar 13 11:16:38 2021 |
Lynda, Laetitia, Chloe | BEAM | General | | beam lost and back | we loose the beam around 11:12, it should be back in few minutes according to pcp.
11:18: the beam is back (3.5E5 pps) |
| Fixed | e793s |
Sat Mar 13 18:37:01 2021 |
Emmanuel C | OFFLINE | General | | Efficiency gamma AGATA | TF1 *fit_1 = new TF1("fit_1","TMath::Exp([0]+[1]*TMath::Log(x)+[2]*pow(TMath::Log(x),2.0)+[3]*pow(TMath::Log(x),3.0)+[4]*pow(TMath::Log(x),4.0))",100,5000); //NRJ traite en keV et efficiency en %
p0 -7.84071e+00
p1 6.44921e+00
p2 -1.42899e+00
p3 1.37921e-01
p4 -5.23947e-03
***********
NRJ [keV] Efficiency error
121.783 0.143761475 0.005
244.692 0.122798778 0.005
295.939 0.131862526 0.005
344.276 0.114579644 0.005
411.115 0.104552282 0.005
443.976 0.115191953 0.005
778.903 0.084839908 0.005
867.388 0.080134749 0.005
964.131 0.078317829 0.005
1085.8 0.076984012 0.005
1112.116 0.07509105 0.005
1299.124 0.068999483 0.005
1408.011 0.066932321 0.005 |
| Ongoing | e793s |
Wed Mar 17 15:17:39 2021 |
Emmanuel C | OFFLINE | General | | New gamma gamma analysis | The level scheme is based on coherent check of
1- gamma gamma
2- gamma gated by Ex
3- Ex gated by gamma |
| Fixed | e793s |
Thu Mar 18 16:25:56 2021 |
Emmanuel C | OFFLINE | General | | Efficiency gamma AGATA --- real measurement run70 |
| Emmanuel C wrote: | TF1 *fit_1 = new TF1("fit_1","TMath::Exp([0]+[1]*TMath::Log(x)+[2]*pow(TMath::Log(x),2.0)+[3]*pow(TMath::Log(x),3.0)+[4]*pow(TMath::Log(x),4.0))",10,5000); //NRJ traite en keV et efficiency en %
Data
40.000000 3.404000 0.070000
45.000000 6.512000 0.150000
121.782997 14.250000 0.300000
244.692001 11.880000 0.270000
295.938995 11.870000 0.500000
344.276001 11.170000 0.240000
411.114990 9.926000 0.330000
443.976013 11.050000 0.290000
778.903015 8.007000 0.180000
867.388000 7.562000 0.240000
964.130981 7.492000 0.180000
1085.800049 7.110000 0.160000
1112.115967 6.956000 0.150000
1212.949951 6.113000 0.190000
1408.010986 6.157000 0.130000
p0 -9.87216e+01
p1 6.98517e+01
p2 -1.78362e+01
p3 2.00526e+00
p4 -8.41808e-02 |
| Fixed | e793s |
Tue Mar 23 10:22:48 2021 |
Emmanuel C | OFFLINE | General | | Efficiency gamma AGATA --- real measurement run70 |
I have been working on the high energy response.
The point is that we do not have source measurement beyond 2 MeV to constrain the fit.
In the attached file, the experimental points are the measured from run 70 in 152Eu source. The fit is then extrapolated up to high energy.
I have simulated the efficiency at 3.5 MeV in GEANT4 including real geometry, missing channels, unefficiency of capsules etc.... The overall agreement was checked on the 1408 line. The 3.5 MeV simulated point is shown. It disagrees strongly with the extrapolation. The blue fit includes the simulated point. It doesn't change the efficiency evaluation < 1.5 MeV but correct the high energy response.
Below, updated parameters
p0 -6.34543e+01
p1 4.24746e+01
p2 -1.00304e+01
p3 1.03468e+00
p4 -3.97076e-02
TF1 *fit_1 = new TF1("fit_1","TMath::Exp([0]+[1]*TMath::Log(x)+[2]*pow(TMath::Log(x),2.0)+[3]*pow(TMath::Log(x),3.0)+[4]*pow(TMath::Log(x),4.0))",10,5000); //NRJ traite en keV |
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