| Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| 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 | 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 | 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 | e768s |
Mon Jul 22 19:34:16 2019 |
Didier & Franco | RUN | General | LiF | Beam intensity and profile check |
|
| Fixed | e768s |
Mon Jul 22 21:30:36 2019 |
Franco | OFFLINE | General | LiF | Identification in Mugast for Ne in VAMOS |
| Difference in identification in Mugast when gating on 19Ne and when gating on the two nearby isotopes (runs from 112 to 121). |
| Fixed | e768s |
Mon Jul 22 23:17:00 2019 |
Didier & Franco | RUN | General | LiF | Screenshots run 126 @23h00 |
|
| Fixed | e768s |
Tue Jul 23 00:01:23 2019 |
Freddy, Jenn | BEAM | General | LiF | Beam intensity and profile check |
|
| Fixed | e768s |
Tue Jul 23 02:04:17 2019 |
Freddy, Jenn | OTHER | General | LiF | overnight summary (Monday 22 to Tuesday 23rd) |
Smooth counting at 1000 KHz in VAMOS (see scalers)
- 1h45 - resync of AGATA 13C |
| Fixed | e768s |
Tue Jul 23 02:09:38 2019 |
Freddy, Jenn | OFFLINE | General | LiF | Ex-Egamma (update) |
| Ex Egamma for run 112 115 116 117 118 119 120 121 122 124 125 126(partial) |
| Fixed | e768s |
Tue Jul 23 02:15:58 2019 |
Freddy, Jenn | ONLINE | General | LiF | Screenshots run 126 @2h00 |
|
| Fixed | e768s |
Tue Jul 23 04:31:34 2019 |
Jenn & Christian | BEAM | General | | Diamond Scaler screenshot |
|
| Fixed | e768s |
Tue Jul 23 04:34:03 2019 |
Jenn & Christian | BEAM | General | | Beam intensity and profile check |
VAMOS OR: ~1200
BEAM INTENSITY ~ 2E7 |
| Fixed | e768s |
Tue Jul 23 06:49:54 2019 |
Jenn & Christian & Kseniia | BEAM | General | | Beam intensity and profile check |
VAMOS OR ~ 870
BEAM INTENSITY ~ 1.4E7 |
| Fixed | e768s |
Tue Jul 23 09:03:07 2019 |
Kseniia, Gilbert, Yorick | BEAM | General | | Beam intensity and screenshots |
The beam has been pretty stable since yesterday |