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ID |
Date |
Author |
Subject |
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174
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Sat Nov 26 16:21:08 2016 |
Briken collaboration | 41Al run 2-15 |
13:08 Beam is still OFF. Background acquisition is started.
Degrader:
3 mm Pb ONLY!
13:25 Signal cables for clover G7 are connected, now G7 spectra are visible in ONLINE.
13:35 Beam Off!
14:00 Beam ON
15:08 Beam OFF, still problems with beam!
15:11 Beam ON
15:18 Acquisition is stopped. Files
161126_1308_002.dlt to 161126_1308_015.dlt
161126_1308_002.root (online)
Rates:
F11R : 4.2 & 1.0 & 9.3 Hz
BRIKEN : 150 & 12.9 & 160 Hz |
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173
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Sat Nov 26 09:31:05 2016 |
Gabor Kiss, Ariel Tarifeno, Alvaro Tolosa | Output signals from G7Red |
Preamplifier of crystal G7Red was replaced.
Output signals from G7Red are weird.
Several screen-shots of the signal are attached. The time calibration factor is 20ns/sample. |
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172
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Sat Nov 26 06:37:37 2016 |
AT | 41Al run 1 |
11:07 New acquisition is started for tungsten degraders
1mm W + 1mm Al
0.5mm W + 1mm Al
3mm Pb (fixed on the beam)
11:14 Online is saved and then cleared
file: 161126_1107_001_1114.root
Rates:
F11R : 10.5Hz
BRIKEN : 170 Hz
11:18 Tungsten degraders are removed.
11:20 Beam Off
11:30 Beam ON
OBS: Something happens in between with the beam intensity!!!
Rates:
F11R : 10.5Hz && 4.54 Hz
BRIKEN : 177.7 Hz && 160 Hz
11:41 Beam OFF
11:55 Acquisition is stopped. Files
161126_1107_001.dlt (full run)
161126_1107_001.root (Online from 11:18) |
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171
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Sat Nov 26 06:30:30 2016 |
AT | Setup |
Setup for parasitic experiments
Energy 41Al @ F11 is around 145MeV/u
Degraders:
- Pb 3mm width ---> IN beam
- Tungsten:
1) 0.5 mm W + 1mm Al ---> IN/OUT beam
2) 0.3 mm W + 1mm Al ---> IN/OUT beam
3) 1.0 mm W + 1mm Al ---> IN/OUT beam |
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170
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Sat Nov 26 00:15:12 2016 |
AT | 41Al run0 |
08:15 BigRips tunning for centering 41Al. Adqusition started.
Degrader: 5mm Pb located between MUSIC chambers
08:45
Beam Off for intervention
08:50
Degrader is modified to 3mm Pb
09:44
Acquisition is stopped Files:
161126_0815_000.dlt
161126_0815_000.root
Rates:
BRIKEN : 85.2 Hz
F11R : 33.5 Hz
Daq Conf. File : 161125Conf_BrikenFull.xlsx |
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169
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Sat Nov 26 00:04:15 2016 |
AT | Elog |
RIKEN Elog during Fallon Parasitic experiments
Fallon Group:
Elog is found in http://ribf-exp.riken.jp/elog/DALI2+Fall+2016/
BRIKEN collaboration:
We keep elog from Takeshi experiments (Nishimura-san desicion!). This elog is found in
http://ribf-exp.riken.jp/elog/RIBF123/ |
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168
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Fri Nov 25 23:18:04 2016 |
BRIKEN collaboration | Fallon Parasitic experiments |
===== START OF PARASITIC EXPERIMENTS ====== |
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167
|
Fri Nov 25 21:50:42 2016 |
AT | New Conf File |
161125Conf_BrikenFull.xlsx |
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166
|
Fri Nov 25 21:49:36 2016 |
AT | Background Beam OFF |
21:27 Beam off. Background is started.
22:10 Acquisition is stopped. Files: |
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165
|
Fri Nov 25 21:48:49 2016 |
AT | DACQ |
19:00 Test calibration |
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164
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Fri Nov 25 21:47:05 2016 |
AT | Background Beam OFF |
16:17 Background beam OFF
16:27 Beam On. Acquisition stopped just after beam ON. File:
161125_1617_017.dlt
161125_1617_017.root
BRIKEN rate beam OFF (background): 0.34 +- 0.03 n/s |
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163
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Fri Nov 25 03:49:44 2016 |
AT | Background Beam ON |
16/11/25 12h28min: Background measurement beam ON 19B |
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162
|
Fri Nov 25 03:41:40 2016 |
AT | Run setups |
Run setups during preparation of Fallon Parasitic experiments (Kanungo experiment beam time) can be found on
http://ribfdaq/~gamma16/expdbrunsum.php
A copy of the information in this page is placed here!
According to their Setup, they are using C targets on F8 and F11. The targets can be IN/OUT. |
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161
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Fri Nov 25 03:37:23 2016 |
AT | Background Beam OFF/ON |
16/11/24 21h06min: Background measurement Beam OFF + Beam ON tunning and 22C
21:41 : Until now Beam OFF, BigRips team tunning the machine. An online is saved
File: 161124_2106_013.root |
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160
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Fri Nov 25 03:15:46 2016 |
AT | Background Beam ON |
16/11/24 19h38min:
Background measurement during tunning of BigRips from 27-29F to 22C is started.
Files:
161124_1938_012.dlt
161124_1938_012.root |
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159
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Thu Nov 24 14:57:55 2016 |
AT | Background Beam ON |
Starting from today 12:22, the background generated by the different setups on BigRips is monitorized.
- 30 min aprox Beam off
- 25 min aprox 29F after C target in F8
- 14 min aprox Beam Off
- 272 min aprox 27F
- 11.5 min Beam Off
- Tunning for 10Min
Adquisition is stopped at 18:22
Files:
161124_1222_010.dlt
161124_1222_011.dlt
161124_1222_010.root (online)
The RUN summary for this experiments is found in
http://ribfdaq/~gamma16/expdbrunsum.php (Access only from RIKEN) |
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158
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Thu Nov 24 14:36:27 2016 |
AT | 252Cf |
Check of calibrations and rates for neutron detectors with Conf File 161107Conf_BrikenFull.xlsx
Measurement 161122_2208_003.root has been used to check the calibrations and counting rates in the BRIKEN
detector. Condition of the measurement:
252Cf at 22.5cm from moderator, opposite sede from AIDA
RESULTS
Calibrations factors:
Calibrations of the neutron detectors are reasonable in the current conditions. A check detector by detector
(see attached file) shows that the full peak for most of the counters is around 764keV. Only 3 counters are
shifted more than 10keV:
He134 741.901
He135 750.312
He140 748.587
The impact on the counting rates would not be serious.
Counting rates (n/pulser):
#########################################
Total neutron rate: 1516.28
#########################################
BY RING:
#########################################
R1 359.057
R2 222.997
R3 386.299
R4 253.833
R5 143.434
R6 90.6357
R7 60.025
The total current counting rate is lower than rate obtained in Oct 12th (total 1550.91 n/pulser). The difference
is due mainly to a decrease in the counting rates for rings 1 to 4. |
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157
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Thu Nov 24 02:30:56 2016 |
CG | RIBF123R1 Local ELogs |
PDFs of the local ELog for the RIBF123R1 experiment Nov 2016 |
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156
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Tue Nov 22 10:22:07 2016 |
PV, Liu | No current observed when turning on the HV for the D4 Clover |
19:00
We've turned on the High Voltage for the D4 Clover up to ~ 1.5 kV.
There is no current (0.0 uA) observed in all the channels (crystals) of this clover while the High Voltage is
turning up.
We have turned down the HV after that.
We've checked that the NIM crate power supply for the preamp is On and the HV and peamplifier connections for
this Clover are Ok. |
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155
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Tue Nov 22 10:17:57 2016 |
ATS, PV, LIU | 252Cf |
Measurement with 252Cf at Z=22.5cm from the moderator border, opposite side from AIDA.
Clovers and Veto detectors are turned off.
Beam is off.
Files:
161122_1820_001.dlt
161122_1820_002.dlt
161122_1820_001.root
Obs: There is a problem in the online data for this run. DAQ for VME1 do not stored data. This problems seems to
be a crash on the DAQ. I restarted the system and run again the measurement. The display for voltages has lost
connection. The channels on VME1 have been checked, no problems is observed in the waveforms.
Again, this time without observing problems:
File:
161122_2208_003.dlt
161122_2208_003.root
BRIKEN spectrum is attached for this run. Counts in the pulser are 1.123e4 |