| Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| Fixed | TEST |
Fri Mar 29 10:00:52 2019 |
Iulian | VAMOS | General | N/A | GMT channel4 corresponds to VAMOS now |
| Voie4 GMT = trigger Vamos |
| Fixed | e768s |
Fri Jul 26 02:27:48 2019 |
Marlène, Faïrouz, Franck, Bertrand, Sylvain, Diego, Nicolas | BEAM | General | | G1 profiler efficiency |
G1 profiler efficiency was checked against CATS1 for two beam intensities. Agreement between the two measurements is within 20%
Profiler -> CATS1
2.3e4 pps -> 1.8e4 pps
1.4e5 pps -> 1.16e5 pps
Conclusion:
G1 profiler is measuring correctly the beam intensity for these intensities |
| Fixed | e768s |
Fri Jul 26 13:48:41 2019 |
Marlène, Faïrouz, Bertrand & Nicolas | BEAM | General | | G1 profiler & VAMOS efficiency |
Factor of two between the profiler and VAMOS FP determination of incident beam is now understood.
Several effects were at work simultaneously and checked at 2 beam intensities (9e3 pps and 5e4 pps):
1. Profiler is using energy loss of the crossing beam particles to deduce the beam intensity. But the profiler was set to 15N instead of 15O.
We checked that for the same beam intensity of 15O the profiler gives 1.2e4 pps / 9e3 pps when tuned on 15N / 15O respectively. This amouts for 75% difference
2. Profiler tends to overestimate the real beam intensity by about 20% when compared to CATS1
Profiler / CATS1: 9e3 pps / 7.3e3 pps (81%)
Profiler / CATS1: 5e4 pps / 3.9e4 pps (78%)
3. VAMOS counting rates are lower than CATS1 by 20% which is consistent with the charge state distribution q(8+)/q(7+) = 80% calculated from LISE++
CATS1 / VAMOS: 7.5e3 pps / 5.8e3 pps (78%)
CATS1 / VAMOS: 3.9e4 pps / 3.0e4 pps (77%)
4. VAMOS PPAC efficiency was checked to be 100%: the PPAC logic signal is always present when triggerd by the drift chamber logic signal
Results:
By combining all previous factors and for 15O beam at the beginning of the experiment we obtain between the profiler and VAMOS FP a reduction factor of: 0.75 * 0.81 * 0.78 = 47%, CQFD!
Discussion:
This factor of two explains the difference we always observed when comparing estimated and measured g-ray yields. |
| Fixed | e768s |
Fri Jul 26 15:48:12 2019 |
Kseniia | AGATA | General | | Full stats with AGATA on 19F with the 15N beam |
Charge state 8 (plus zooms) and charge state 7;
Statistics of all the 15N runs combined;
Identification in VAMOS;
Alas, no clear peaks at 3908 and 2354. |
| Fixed | e744s |
Wed Apr 10 09:12:32 2019 |
Adrien | OTHER | General | N/A | Folder for conversion |
I setup the various folder for conversion in : /data/mugastX/e744/acquisition/
- run : MFM run from GANIL daq (VAMOS+MUGAST)
- MERGED_DATA : root run after merged from Agata
- root_np : raw data converted using ganil2root Offline (MUGAST raw only)
- np_output: tree analysed using nptool.
|
| Fixed | TEST |
Thu Mar 21 13:28:06 2019 |
Valerian and Adrien | DAQ | Software | N/A | First fully functionnal time calibration run on X and Y of MG1 |
| Our program is able to perform the time calibration of our detector for both X and Y, see picture attached. |
| Fixed | |
Wed Jul 24 12:44:55 2019 |
UK refugees | OTHER | General | | Fire out thanks to de Piffle |
|
| Fixed | e768s |
Wed Jul 17 01:51:10 2019 |
mugast | BEAM | General | | Faisceau perdu |
Un Q-pole dans L3 est tombé. L'opérateur a du mal à le redémarrer. Bertrand et un technicien ont essayé de réparer mais sans succès.
L'astreinte a été appelée à 2h50. |
| Fixed | |
Tue Apr 9 21:47:20 2019 |
Marlene Valerian | GRIT | General | | FSC time calibration 9th april evening |
Snapshot of FSC calibration just before experiment
The noisy MG detectors are still there but otherwise most of them are OK |
| Fixed | e793s |
Sat Mar 6 13:10:07 2021 |
adrien | ONLINE | General | N/A | FSC screen shot of online at end of run |
| every detetector have time on either X or Y except for MM5, which is at 90deg and used for elastic, so not a deal breaker. |
| Fixed | e793s |
Mon Feb 8 11:25:29 2021 |
Adrien and Freddy | S1 | General | N/A | FSC run |
we ran FSC on all card. S1 is dismounted.
Pulser goes on all channel and works well so electronic is fine.
We will ask Laurent to remount the detector and re run the test. |
| Fixed | e768s |
Sat Jul 27 22:22:21 2019 |
teodora & beyhan | VAMOS | Hardware | | FP_DC_Wi1 tripped -->Fixed |
FP_DC_Wi1 tripped. We set back power supply on the wire
=> fixed |
| Fixed | e744s |
Tue Apr 16 13:40:35 2019 |
mugast | VAMOS | Hardware | N/A | FP_DC2_w HV |
FPDC2_w tripping multiple times.
Lowered the HV from 620 to 600V |
| Fixed | e744s |
Tue Apr 16 14:20:17 2019 |
mugast | VAMOS | General | CH2 | FP_DC2_w HV |
Still tripping....
Decreased HV from 600 to 580V - attached are the new spectra |
| 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 | com2019 |
Sat Apr 6 00:29:14 2019 |
clement | OFFLINE | General | CD2 | Experimental Kinematic Line from dp + gamma ????? |
| Triangle is 870 keV |
| Fixed | com2019 |
Fri Apr 5 23:19:04 2019 |
Adrien et Valerian | OFFLINE | General | CD2 | Experimental Kinematic Line from dp |
We used run 253 to obtain a convincing Kine line and Ex spectrum at backward angle.
Stat is still limited but the distribution is convincing. |
| Fixed | com2019 |
Sat Apr 6 01:06:18 2019 |
mugast | OFFLINE | General | CD2 | Experimental Kinematic Line from dp |
| Kinematic Line obtained from run 256+253 |
| Fixed | e744s |
Tue Apr 9 15:48:00 2019 |
Adrien Valerian | OFFLINE | General | CD2 | Expected gamma background in coincidence with proton in MUST2 |
This is a plot of the Gamma in AGATA in coincidence with proton in MUST2 for the entire run 256.
It gives a hint of the expected gamma background due to fusion evaporation for the upcoming experiment looking for a bump around 3.5 MeV
The proton are selected only with the E-DE plot, so not in coinc with proton stopping in the first stage. |
| Fixed | com2019 |
Sat Apr 6 18:37:27 2019 |
Freddy, Valérian, Adrien, Antoine | OFFLINE | General | N/A | Excitation Energy and Gammas |
This is it!
M.J.
------------------------------------
Measured Statistics (Run 256) about 10h:
GS + 1st excited:
MUGAST(Ex rec) : 2519 (bckg subtracted)
MUGAST(Ex rec + VAMOS) : 1282
Gamma(871keV) : 125 (if subtract bg only 80 cnts)
Gamma(871keV)+MUGAST(Ex) : 68
Gamma(871keV)+MUGAST(Ex)+ VAMOS IC: 27
Deduced gamma efficiency: 68/(2519/2) = 5.4 % ---> to be investigated
------------------------------------
Fit Results Excitation Energy (gated by VAMOS) - sum of two gaussian fit
EXT PARAMETER STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 p0 1.91342e+02 1.01289e+01 1.78576e-02 3.82264e-06
2 p1 2.71036e-02 1.14447e-02 2.14103e-05 4.44817e-03
3 p2 2.13115e-01 1.00329e-02 1.45208e-05 1.03530e-02
4 p3 1.63729e+02 9.57766e+00 1.64222e-02 1.51782e-05
5 p4 8.83234e-01 1.59487e-02 3.11205e-05 -8.55421e-03
6 p5 2.37851e-01 1.88040e-02 2.48042e-05 1.09859e-02
FWHM(gs): 500 keV
FWHM(871keV): 550 keV
Simulation: 500 keV |