| Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| Fixed | e768s |
Mon Jul 22 08:29:19 2019 |
Faïrouz, Sylvain, Francois et Franck, Bertrand | BEAM | General | LiF | Beam profile updated |
To solve the very high counting rate observed on AGATA (and on MUST2 with a lesser degree), the beam was retuned.
After inspection of the beam profile in VAMOS, Bertrand tuned the vertical steerers G1.DC21-VE (from 0.5 -> 0.0A). The consequence is a shift of 2mm in vertical position at the target position.
Everything seems back to normal. |
| Fixed | e768s |
Mon Jul 22 09:40:06 2019 |
Franck, François, Adrien, Jérémy, Nicolas | ONLINE | General | LiF | Screenshots run 124 |
|
| Fixed | e768s |
Mon Jul 22 10:01:12 2019 |
Franck, François D | BEAM | General | LiF | Beam profile |
Slight shift in vertical +1 mm (with respect to this morning at 8:30)?
Intensity = 1.7e7 pps |
| Fixed | e768s |
Mon Jul 22 10:10:02 2019 |
Christian | OTHER | General | | Previous Papers - alpha-branching ratios for states in the 4-MeV region |
Branching ratio data overview from Tan et al. (PRL 2007, attached):
Ex/MeV B_alpha
4.03 2.9(21)e-4
4.14/4.20 1.2(5)e-3
4.38 1.2(3)e-3
4.55 0.07(2)
In the spectra so far, we are very clearly seeing the 4.14/4.20 MeV doublet. We may also be seeing some indication of the 4.38, 4.55 and/or 4.60 MeV states above 4 MeV (4.14, 4.27, and 4.36 MeV respectively, as dominant lines). Note that we have no alpha-branching-ratio data for the 4.60MeV state, and that most likely the gamma-ray events we currently see above 4MeV are the 4.14MeV and 4.36MeV lines (4.38 and 4.60 MeV states).
Comments to lifetimes from Mythili et al., (PRC 2008, attached). The relevant lifetimes are for the states between 4.14 and 4.55. Only dominant errors are given, for details, see attached table:
Pre-2008 Mythili
Ex/MeV lifetime/fs lifetime/fs
4.14 18(+2/-3) 14(4)
4.20 43(+12/-9) 38(+20/-10)
4.38 5(+3/-2) <5.4 (95% CL)
4.55 15(+11/-5) 19(4)
In combination:
4.38 MeV: Branching ratio is fairly well known. Lifetime is very poorly known, if at all. We have 7 counts so far (provisional), in the 4.14 MeV peak after about 3 days of beam on target.
4.55 MeV: Branching ratio is fairly well known. Lifetime is fairly well known, but it is not clear that we see this decay.
4.14/4.20: Lifetimes is known reasonably well for 4.14, poorly for 4.20, and differ by about a factor of 2-4 (within error). Branching ratio is only known in combination between the two. This complicates normalisation to these two states greatly, as we would in principle have to assume any combination of this contribution from 4.14, 4.20, or combined. In their paper (Tan 2007), they do state for this measurement that: "The measured􏰑 peak [in the alpha-spectrum] seems to be lower in energy than the simulated one, indicating that these decay events are more likely from the 4.14-MeV state.". Looking at the spectrum they refer to, however, I would not say that this is in any way a clear cut argument (and they do state it with some hesitation).
In summary: because of the overlap of the 4.14 and 4.20 states in the branching ratio data [which I should admit that I had missed when investigating the previous data and results earlier] it will be much harder than expected to cross check normalisation of the data based on the observed lifetimes and alpha branching ratios for 19Ne resonances.
|
| Fixed | e768s |
Mon Jul 22 11:16:09 2019 |
OttoRun | RUN | General | LiF | Run125 |
*************************
Run : 125
*************************
Start at 2019-07-22 11:11:08.167773
Beam intensity: 2.0e7 pps
OR VAMOS ~ 1100 Hz
So the VAMOS/intensity ratio has changed
Target: 1.25 mg/cm2 (nb 1) 7LiF
Triggers:
MUGAST (backward, MM, 90 deg)
VAMOS %100
BaF2 %100
Rates:
FAG: 160
MUGAST: 150
OR AGATA: 1400
OR VAMOS: 1100
MG3 pedestal suppression between 0 and 6800
Stop at 2019-07-22 15:16:35.174290
Stop comment: Stop to check beam intensity with vamos |
| Fixed | e768s |
Mon Jul 22 11:21:25 2019 |
mugast | MUST2 | Software | | Pedestals of MG3 |
Pedestals of MG3_X have changed yesterday, they are back to about 8200 as they should be --> saved in ped_muvi2sec2_22072019_new
We are using wrong pedestals (of about 9600) --> the pedestals are saved under mugast account as ped_muvi2_sec2_22072019_sameas_1807219
We kept the same pedestals but we reduced the pedestal suppression to 0 - 6800 in order not to suppress the data of one other 2 mates.
The attached spectrum shows that all the X of MG3 are recovered (although the impact matrix still does not work) |
| Fixed | e768s |
Mon Jul 22 11:42:22 2019 |
Marlène, François D, Franck | BEAM | General | LiF | Beam profile and intensity |
Intensity = 1.8e7 pps
Slight shifts in x and y compared to this morning 8:30
x : -1.1 mm
y : +1.7 mm |
| Fixed | |
Mon Jul 22 12:33:17 2019 |
Kseniia | AGATA | General | | Stats on 19Ne |
Full stats for runs 112..124 with the event-by-event Doppler correction. So, we see 4140 kev.
Also, the betas of all the 19Ne with Q= 9,10 identified in VAMOS |
| Fixed | |
Mon Jul 22 12:54:25 2019 |
Kseniia | AGATA | General | | Beta vs gamma-ray energy in 19Ne, runs 112-124 |
|
| Fixed | e768s |
Mon Jul 22 13:40:41 2019 |
Franck | ONLINE | General | LiF | Run 125 screenshots |
|
| Fixed | e768s |
Mon Jul 22 14:45:34 2019 |
François D, Franck | BEAM | General | LiF | Beam profile |
Intensity = 1.3e7 pps
Beam position shift compared to this morning 8:30
x: -1.8 mm
y: +3.3 mm |
| Fixed | TEST |
Mon Jul 22 15:02:45 2019 |
OttoH.V. | OTHER | Hardware | N/A | HVM_SUMMARY |
*** hvm watcher summary ***
+10v/mg Slot: 5 (A1516B) Channel:5 Vmon: 10 V Imon: 0.407 A Status: On
+10v/t14mg Slot: 2 (A1516 ) Channel:5 Vmon: 9.99 V Imon: 0.577 A Status: On
+2.5V/MG10 Slot: 1 (A1518B) Channel:2 Vmon: 2.5 V Imon: 1.167 A Status: On
+2.5v/MG9 Slot: 1 (A1518B) Channel:1 Vmon: 2.49 V Imon: 1.196 A Status: On
+2.5v/mg1 Slot: 4 (A1518B) Channel:2 Vmon: 2.5 V Imon: 1.263 A Status: On
+2.5v/mg11 Slot: 3 (A1518B) Channel:2 Vmon: 2.49 V Imon: 1.199 A Status: On
+2.5v/mg3 Slot: 3 (A1518B) Channel:0 Vmon: 2.49 V Imon: 1.254 A Status: On
+2.5v/mg4 Slot: 4 (A1518B) Channel:1 Vmon: 2.49 V Imon: 1.246 A Status: On
+2.5v/mg5 Slot: 3 (A1518B) Channel:1 Vmon: 2.49 V Imon: 1.252 A Status: On
+2.5v/mg7 Slot: 4 (A1518B) Channel:0 Vmon: 2.49 V Imon: 1.256 A Status: On
+2.5v/t1 Slot: 0 (A1518B) Channel:0 Vmon: 2.49 V Imon: 1.21 A Status: On
+2.5v/t2 Slot: 0 (A1518B) Channel:1 Vmon: 2.49 V Imon: 1.205 A Status: On
+2.5v/t3 Slot: 0 (A1518B) Channel:2 Vmon: 2.49 V Imon: 1.195 A Status: On
+2.5v/t4 Slot: 1 (A1518B) Channel:0 Vmon: 2.49 V Imon: 1.214 A Status: On
+3.3v/mg Slot: 5 (A1516B) Channel:2 Vmon: 3.29 V Imon: 0.989 A Status: On
+3.3v/t14mg Slot: 2 (A1516 ) Channel:2 Vmon: 3.3 V Imon: 0.976 A Status: On
+5v/mg3511 Slot: 5 (A1516B) Channel:3 Vmon: 5 V Imon: 0.57 A Status: On
+5v/mg741 Slot: 5 (A1516B) Channel:4 Vmon: 5 V Imon: 0.555 A Status: On
+5v/t123 Slot: 2 (A1516 ) Channel:3 Vmon: 5.04 V Imon: 0.629 A Status: On
+5v/t4mg Slot: 2 (A1516 ) Channel:4 Vmon: 4.97 V Imon: 0.629 A Status: On
-2.5V/MG10 Slot: 1 (A1518B) Channel:5 Vmon: 2.49 V Imon: 1.774 A Status: On
-2.5V/MG9 Slot: 1 (A1518B) Channel:4 Vmon: 2.5 V Imon: 1.79 A Status: On
-2.5v/mg1 Slot: 4 (A1518B) Channel:5 Vmon: 2.49 V Imon: 1.801 A Status: On
-2.5v/mg11 Slot: 3 (A1518B) Channel:5 Vmon: 2.48 V Imon: 1.788 A Status: On
-2.5v/mg3 Slot: 3 (A1518B) Channel:3 Vmon: 2.5 V Imon: 1.806 A Status: On
-2.5v/mg4 Slot: 4 (A1518B) Channel:4 Vmon: 2.5 V Imon: 1.796 A Status: On
-2.5v/mg5 Slot: 3 (A1518B) Channel:4 Vmon: 2.5 V Imon: 1.813 A Status: On
-2.5v/mg7 Slot: 4 (A1518B) Channel:3 Vmon: 2.5 V Imon: 1.8 A Status: On
-2.5v/t1 Slot: 0 (A1518B) Channel:3 Vmon: 2.49 V Imon: 1.79 A Status: On
-2.5v/t2 Slot: 0 (A1518B) Channel:4 Vmon: 2.49 V Imon: 1.808 A Status: On
-2.5v/t3 Slot: 0 (A1518B) Channel:5 Vmon: 2.49 V Imon: 1.806 A Status: On
-2.5v/t4 Slot: 1 (A1518B) Channel:3 Vmon: 2.51 V Imon: 1.832 A Status: On
-5v/mg3511 Slot: 5 (A1516B) Channel:0 Vmon: 4.99 V Imon: 0.361 A Status: On
-5v/mg741 Slot: 5 (A1516B) Channel:1 Vmon: 5 V Imon: 0.344 A Status: On
-5v/t123 Slot: 2 (A1516 ) Channel:0 Vmon: 5.02 V Imon: 0.418 A Status: On
-5v/t4mg Slot: 2 (A1516 ) Channel:1 Vmon: 4.99 V Imon: 0.392 A Status: On
CsI/t1 Slot: 12 (A1837 ) Channel:0 Vmon: 49.98 V Imon: 0 uA Status: On
CsI/t2 Slot: 12 (A1837 ) Channel:2 Vmon: 49.98 V Imon: 0 uA Status: On
CsI/t3 Slot: 12 (A1837 ) Channel:4 Vmon: 50 V Imon: 0 uA Status: On
CsI/t4 Slot: 12 (A1837 ) Channel:6 Vmon: 49.98 V Imon: 0 uA Status: On
CsI/t5 Slot: 13 (A1837 ) Channel:0 Vmon: 0 V Imon: 0 uA Status: Off
CsI/t6 Slot: 13 (A1837 ) Channel:2 Vmon: 0 V Imon: 0 uA Status: Off
CsI/t7 Slot: 13 (A1837 ) Channel:4 Vmon: 0 V Imon: 0 uA Status: Off
CsI/t8 Slot: 13 (A1837 ) Channel:6 Vmon: 0 V Imon: 0 uA Status: Off
DSSD/t1 Slot: 12 (A1837 ) Channel:1 Vmon: 70 V Imon: 0.7 uA Status: On
DSSD/t2 Slot: 12 (A1837 ) Channel:3 Vmon: 69.98 V Imon: 0.7 uA Status: On
DSSD/t3 Slot: 12 (A1837 ) Channel:5 Vmon: 70 V Imon: 2.92 uA Status: On
DSSD/t4 Slot: 12 (A1837 ) Channel:7 Vmon: 69.56 V Imon: 0.54 uA Status: On
MG10C Slot: 12 (A1837 ) Channel:11 Vmon: 0 V Imon: 0 uA Status: Off
MG11A Slot: 13 (A1837 ) Channel:5 Vmon: 59.86 V Imon: 0.2 uA Status: On
MG1T Slot: 13 (A1837 ) Channel:11 Vmon: 139.78 V Imon: 0.8 uA Status: On
MG3T Slot: 13 (A1837 ) Channel:1 Vmon: 159.88 V Imon: 0.4 uA Status: On
MG4T Slot: 13 (A1837 ) Channel:9 Vmon: 95.04 V Imon: 0.9 uA Status: On
MG5T Slot: 13 (A1837 ) Channel:3 Vmon: 149.84 V Imon: 1 uA Status: On
MG7T Slot: 13 (A1837 ) Channel:7 Vmon: 119.9 V Imon: 1.2 uA Status: On
MG9C Slot: 12 (A1837 ) Channel:9 Vmon: 189.74 V Imon: 0.42 uA Status: On
spare1 Slot: 12 (A1837 ) Channel:8 Vmon: 0 V Imon: 0 uA Status: Off
spare2 Slot: 12 (A1837 ) Channel:10 Vmon: 0 V Imon: 0 uA Status: Off
spare3 Slot: 13 (A1837 ) Channel:8 Vmon: 0 V Imon: 0 uA Status: Off
spare4 Slot: 13 (A1837 ) Channel:10 Vmon: 0 V Imon: 0 uA Status: Off
|
| Fixed | TEST |
Mon Jul 22 15:02:46 2019 |
OttoH.V. | OTHER | Hardware | N/A | HVM_SUMMARY |
*** hvm watcher summary ***
Slot: 8 (A1821H) Channel:1 Vmon: 0 V Imon: 0.001 uA Status: Off
CHANNEL00 Slot: 9 (A1821H) Channel:0 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL01 Slot: 9 (A1821H) Channel:1 Vmon: 0 V Imon: 0.001 uA Status: Off
CHANNEL02 Slot: 9 (A1821H) Channel:2 Vmon: 0 V Imon: 0.001 uA Status: Off
CHANNEL03 Slot: 9 (A1821H) Channel:3 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL04 Slot: 9 (A1821H) Channel:4 Vmon: 0 V Imon: 0.001 uA Status: Off
CHANNEL05 Slot: 9 (A1821H) Channel:5 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL06 Slot: 9 (A1821H) Channel:6 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL07 Slot: 9 (A1821H) Channel:7 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL08 Slot: 9 (A1821H) Channel:8 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL09 Slot: 9 (A1821H) Channel:9 Vmon: 0 V Imon: 0.001 uA Status: Off
CHANNEL10 Slot: 9 (A1821H) Channel:10 Vmon: 0 V Imon: 0 uA Status: Off
CHANNEL11 Slot: 9 (A1821H) Channel:11 Vmon: 0 V Imon: 0.001 uA Status: Off
FP_CATS0 Slot: 2 (A1821HMP) Channel:6 Vmon: 529.5 V Imon: 0.005 uA Status: On
FP_CATS1 Slot: 2 (A1821HMP) Channel:7 Vmon: 529.25 V Imon: 0 uA Status: On
FP_CATS2 Slot: 2 (A1821HMP) Channel:8 Vmon: 529.5 V Imon: 0.001 uA Status: On
FP_CATS3 Slot: 2 (A1821HMP) Channel:9 Vmon: 529.25 V Imon: 0.001 uA Status: On
FP_CATS4 Slot: 2 (A1821HMP) Channel:10 Vmon: 529 V Imon: 0.08 uA Status: On
FP_CATS5 Slot: 2 (A1821HMP) Channel:11 Vmon: 528.5 V Imon: 0.04 uA Status: On
FP_DC1_cat Slot: 3 (A1821HM) Channel:0 Vmon: 499.75 V Imon: 30.36 uA Status: On
FP_DC2_cat Slot: 3 (A1821HM) Channel:1 Vmon: 499.5 V Imon: 30.32 uA Status: On
FP_DC_Wi1 Slot: 6 (A1821H) Channel:0 Vmon: 650 V Imon: 0 uA Status: On
FP_DC_Wi2 Slot: 6 (A1821H) Channel:1 Vmon: 650 V Imon: 0 uA Status: On
FP_DC_Wi3 Slot: 6 (A1821H) Channel:2 Vmon: 649.75 V Imon: 0.002 uA Status: On
FP_DC_Wi4 Slot: 6 (A1821H) Channel:3 Vmon: 650 V Imon: 0.001 uA Status: On
FP_IC_Cath Slot: 10 (AG5262) Channel:0 Vmon: 992 V Imon: 19.76 uA Status: On
FP_IC_PAD Slot: 7 (A1821H) Channel:1 Vmon: 404.5 V Imon: 0 uA Status: On
FP_IC_Wi Slot: 7 (A1821H) Channel:0 Vmon: 134.5 V Imon: 0 uA Status: On
FP_IC_casq Slot: 10 (AG5262) Channel:1 Vmon: 994 V Imon: 0.02 uA Status: On
FP_diamond Slot: 8 (A1821H) Channel:0 Vmon: 399.75 V Imon: 0.019 uA Status: On
FP_mob_pla Slot: 5 (A18332) Channel:0 Vmon: 0 V Imon: 0.2 uA Status: Off
Si1 Slot: 8 (A1821H) Channel:5 Vmon: 0 V Imon: 0.001 uA Status: Off
Si2 Slot: 8 (A1821H) Channel:6 Vmon: 0 V Imon: 0 uA Status: Off
Si3 Slot: 8 (A1821H) Channel:7 Vmon: 0 V Imon: 0 uA Status: Off
Si4 Slot: 8 (A1821H) Channel:8 Vmon: 0 V Imon: 0 uA Status: Off
Si5 Slot: 8 (A1821H) Channel:9 Vmon: 0 V Imon: 0 uA Status: Off
Si6 Slot: 8 (A1821H) Channel:10 Vmon: 0 V Imon: 0.001 uA Status: Off
Si7 Slot: 8 (A1821H) Channel:11 Vmon: 0 V Imon: 0 uA Status: Off
TP_DC1 Slot: 3 (A1821HM) Channel:6 Vmon: 0.25 V Imon: 0.02 uA Status: Off
TP_DC2 Slot: 3 (A1821HM) Channel:7 Vmon: 0 V Imon: 0 uA Status: Off
x Slot: 7 (A1821H) Channel:11 Vmon: 0 V Imon: 0 uA Status: Off
|
| Fixed | e768s |
Mon Jul 22 15:27:35 2019 |
Freddy, Valerian, Adrien | OFFLINE | General | LiF | Ex-Egamma |
| Ex Egamma for run 112 115 116 117 118 119 120 121. |
| Fixed | e768s |
Mon Jul 22 16:08:24 2019 |
OttoRun | RUN | General | LiF | Run126 |
*************************
Run : 126
*************************
Start at 2019-07-22 16:07:13.184511
Beam intensity: 1.5e7 pps
OR VAMOS ~ 1100 Hz
after check of beam intensity on target (factor of 2 in transmission with target)
Target: 1.25 mg/cm2 (nb 1) 7LiF
Triggers:
MUGAST (backward, MM, 90 deg)
VAMOS %100
BaF2 %100
Rates:
FAG: 160
MUGAST: 150
OR AGATA: 1300
OR VAMOS: 1500
MG3 pedestal suppression between 0 and 6800 |
| Fixed | e768s |
Mon Jul 22 16:54:33 2019 |
Marlène, Franck, François & Nicolas | BEAM | General | | Cheking beam transmission from G1 profiler to VAMOS |
Goal:
Estimate beam transmission from profiler to VAMOS (FP)
Method:
1. Beam intensity is reduced with the pepper pot 1/9 and by closing slits after the 15O target production and the accelerators so that the beam quality (emittance, etc...) is not affected.
2. VAMOS plate is removed to allow the direct beam detection
3. LiF (1.25 mg/cm2, number 1) is in position
Results:
1. beam intensity at G1 profiler ~ 4e4 pps
2. VAMOS FP ~ 2e4 pps
Discussion:
1. There is a factor of two loss between the profiler and VAMOS. Taken this factor into account in the g-ray yield estimate (see post ..) the numbers of 1297- and 1340-keV g-rays is in line with what is expected from cross-section calculation.
2. Loosing a factor of two means a substantial amount of 15O is implanted in the pipe/target frame/MUST2 masks. A dedicated AGATA activation measurement could be performed to cross-check this factor of two. |
| Fixed | e768s |
Mon Jul 22 17:07:39 2019 |
Marlène, Franck, François & Nicolas | BEAM | General | | Profiler conditions for measuring beam intensity |
| We checked that the measured beam intensity (present case 1.5e7 pps) is independent on the voltage on the profiler. Values from 93 V up to 177 V gave similar results. |
| Fixed | e768s |
Mon Jul 22 17:54:49 2019 |
Christian and Jeremie | AGATA | General | LiF | Comparison EGamma 19Ne, Q8 vs Q9 |
1) Beam velocity from VAMOS for AGATA doppler correction. Beta is understandable for the three main charge states seen (with Q9 and Q10 as the transfer states, and centroid shifted higher for Q10 state, possibly because of reduced acceptance for the very high-lying states.
2) Entire doppler corrected gamma-ray spectrum. Blue is transfer (Q9), red is fusion evaporation (Q8). 1880 keV line only seen in fusion evaporation as expected, 13/2+ state.
3) Zoom at the region around 2.5 MeV. Note that |
| Fixed | |
Mon Jul 22 19:13:45 2019 |
Kseniia | AGATA | General | | Current stats on 19Ne |
| Runs 112..125, still no joy... |
| Fixed | e768s |
Mon Jul 22 19:34:16 2019 |
Didier & Franco | RUN | General | LiF | Beam intensity and profile check |
|