Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
Fixed | e755 |
Sat Jun 30 09:17:25 2018 |
Louis | OFFLINE | General | Cryo-LH2 | Offline analysis of 37Ca(p,d)36Ca reaction | Here are some plot summarizing the analysis status on the 37Ca(p,d)36Ca channel. Plots shows performance of the setup in optimal conditions and preli;inary results.
Run concerned: 192-194
Running time: 6 hours
Gates applied:
- Target Impact (from CATS)
- deuton in dE-E
- Incoming 37Ca, TCATS1_HF in [2800;3800]
- Outgoing Z=20 and Z=19
Plots:
- Ion identification in dE-TOF and dE-E
- Light particle identification in dE-E
- Kinematics, Exitation energy and laboratory angle for Gate on Z=20 and Z=19 outgoing nuclei
- Previous results for 38Ca(p,t)36Ca analysis
Remarks:- Particle identification seems OK for light and heavy particles. We are able to reproduce wath we get during 38Ca beam. All component are well separeted
- On the Z=20 gated spectra, one can distinguish two state. Excited state looks like to be at the same position (around 3MeV) than the one found in 38Ca(p,t)36Ca reaction.
- On the Z=19 gated spectra, one can see state. Looks like to be at the same position (around 6MeV) than the one found in 38Ca(p,t)36Ca reaction with the same gate.
Results looks consistent with previous observations. Let's see wath will grown with more data! |
Fixed | e755 |
Sat Jun 30 11:25:59 2018 |
Freddy, Shumpei | BEAM | General | Cryo-LH2 | Beam profile on the target | The beam profile on the target for each isotope is shown for all trigger and CATS trigger (GATCONF > 500).
X position seems not to depend on the isotope, while Y position depends on the isotope.
Now, 37Ca is a little bit higher form the center of the target, while 36K is almost at the center. |
Fixed | e755 |
Sat Jun 30 13:25:27 2018 |
Freddy, Shumpei | RUN | General | Cryo-LH2 | Run 196 | Run 196
start: 12h09
stop: 15h38
37Ca setting
I = 2 uA
CATS12 ~ 20 kHz |
Fixed | e755 |
Sat Jun 30 15:07:43 2018 |
Shumpei | OFFLINE | General | Cryo-LH2 | 37Ca (p,d) 36Ca | 37Ca (p,d) 36Ca reaction is analyzed (run 191-195).
Gate condition;
1. beam on target by CATS1&2
2. TOF gate for 37Ca
3. recoil deutron gate by MUST2 only T3
4. fragment gate by CHIO and plastic
Only T3 is used for analysis and the angle is intentionally shifted 1.0 deg to match the kinematics for 40Ca (p,d).
Ground and 2+ state of 36Ca are observed in Z=20 gate, while a higher lying state is seen in Z=19 gate.
This result seems to be consistent with that of 38Ca (p,t) 36Ca. |
Fixed | e755 |
Sat Jun 30 16:04:11 2018 |
takeshi, Didier | RUN | General | Cryo-LH2 | run 197 | RUN 197
start: 15h39
stop : 17h38
beam rate 1.7 uA |
Fixed | e755 |
Sat Jun 30 17:45:17 2018 |
takeshi, Didier | RUN | General | Cryo-LH2 | run 198 | RUN 198
start: 17h40
stop : |
Fixed | e755 |
Sat Jun 30 18:09:53 2018 |
Nori | BEAM | General | N/A | Brho1 and Brho2 optimization for 37Ca | Summary of Brho1 and Brho2 optimizations for the 37Ca beam.
Attachment 1:
Results of the Brho1 scan. Corresponding LISE run numbers are also shown in the figure.
As the beam intensity was fluctuating, the counting rates were normalized with respect to the intensity.
By changing Brho1, we tried to search for the peak of the 37Ca production. The yield seemed to reach the maximum at around 2.10 Tm,
although sometimes the rates were not reproducible (see the data point of the run 306, for example).
Attachment 2, 3:
Changes of the yield and purity by scanning Brho2. The shaded area corresponds to the width of the slit (shown only for 0%).
They were well optimized at about 1.925 Tm. |
Fixed | e755 |
Sat Jun 30 20:08:27 2018 |
didier, takeshi, daisuke | RUN | General | Cryo-LH2 | RUN 199 37C + liq. H | |
Ongoing | e755 |
Sat Jun 30 20:12:33 2018 |
takeshi | TARGET | Hardware | Cryo-LH2 | target temperature | Latest update at 12:15 pm on July 1
Here are the temperature logs up to 7:00pm 30/6. |
Fixed | e755 |
Sat Jun 30 23:47:45 2018 |
takeshi, daisuke, didier | BEAM | General | Cryo-LH2 | result of Wien filter tuning | Here is the summary of the tuning of the Wien filter.
We tried to tune the correction magnet of the wien filter to change the Y position of the beam, especially for 37Ca, which seemed to be at slightly higher position.
The peak position was shifted lower and lower and the purity of 37Ca was increased as changing the magnetic field of the wien filter with decreasing total beam rate.
The rate of 37Ca was actually not changed by the tuning of the wien filter and 36K was decreased by this tuning, although the rate of 35Ar, which are not interest nuclide for us, was decreased significantly.
The dead time of DAQ is not so serious in current setting, so we decided to continue the measurement without changing the wien filter. |
Fixed | e755 |
Sun Jul 1 01:48:23 2018 |
Adrien | RUN | General | Cryo-LH2 | Run 205 | Starting Run 205 at 1:45.
CATS 1 : 22kps
CATS 2 : 23kps
PLASTIC: 35kps |
Fixed | e755 |
Sun Jul 1 06:42:28 2018 |
e748 | OFFLINE | General | Cryo-LH2 | offline of run 192-206 | Here are te plot of analysis of all the available statistic on 37Ca pd. |
Fixed | e755 |
Sun Jul 1 09:43:58 2018 |
Benoit, Franck | RUN | General | Cryo-LH2 | Run 209 | Sun 1 July 2018
Start 9:26
Stop 11:00
STOP BECAUSE OF SOURCE PROBLEM (No beam)
CATS1: 17 kcps
CATS2: 17 kcps
Plastic: 27 kcps
Trigger: MUST2, CATS1div, CATS2div
37Ca beam
Continue |
Fixed | e755 |
Sun Jul 1 09:48:44 2018 |
Benoit, Franck | RUN | General | Cryo-LH2 | Run 208 (ENTRY POSTPONED) | Sun 1 July
Start 7:17
Stop 9: 25
CATS1: 20 kcps
CATS2: 20 kcps
Plastic: 32 kcps |
Fixed | e755 |
Sun Jul 1 11:52:27 2018 |
Benoit, Franck | RUN | General | Cryo-LH2 | Run 210 | Sun 1 July 2018
Start 11:46
Stop 11:57
(-> PCP retunes the beam)
37Ca continue
CATS1: 20 kcps
CATS2: 20 kcps
Plastic: 29 kcps |
Fixed | e755 |
Sun Jul 1 17:11:55 2018 |
freddy, shumpei, daisuke | RUN | General | Cryo-LH2 | RUN 214 | from 17h01 to 18h39 (anoxia alert. PCP to inspect). 40ca ~3.0 micro A. |
Fixed | e755 |
Sun Jul 1 18:44:24 2018 |
freddy, shumpei, daisuke | RUN | General | N/A | RUN 215 | Alpha source run. no beam
18h41 started
19h22 ended |
Fixed | e755 |
Sun Jul 1 19:22:32 2018 |
freddy, shumpei, daisuke | RUN | General | Cryo-LH2 | RUN 216 | 37Ca + liquid H
19h20 started
21h18 ended. |
Fixed | e755 |
Sun Jul 1 21:21:18 2018 |
Louis | RUN | General | Cryo-LH2 | RUN 217 | RUN 217
37Ca beam at 2.104pps
LH2
started at 21h18 |
Fixed | e755 |
Sun Jul 1 23:18:21 2018 |
freddy, louis, shumpei, daisuke | RUN | General | Cryo-LH2 | RUN 219 | 37ca + liq.H
22h50 started
1h00 ended |
|