 Wed May 6 04:57:24 2015, J.L. Tain, J. Agramunt, G. Kiss, New degrader thickness
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| The Al degrader thickness was reduced to 4.8mm |
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Tue May 5 05:29:26 2015, J.L. Tain, J. Agramunt, G. Kiss, Ambient background measurement
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Beam still down. New background measurement
with new RIKEN tube below the MUSIC chamber
(call it B)
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Tue May 5 05:17:36 2015, J.L. Tain, J. Agramunt, G. Kiss, Ambient background measurement
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Failure of a quadrupole triplet at BigRIPS (some time after earthquake)
We take the chance of measuring background:
File:
150504_1500_2047_bckg.root
Rate per tube (n/s): U=0.098, D=0.0062, US=0.0200
Ratio to 1st 110Zr: U=1.38, D=1.99, US=0.90
Notes:
-Compared to the
1st background measurement there are changes
larger than expected statistical fluctuations:
perhaps due to slight changes in noise
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Tue May 5 05:04:00 2015, J.L. Tain, J. Agramunt, G. Kiss, Change of degrader thickness
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For EURICA measurements degrader thickness were increased
trying to decrease MACI and AIDA trigger rate
Before we had 5.7 mm of Al
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Tue May 5 02:19:58 2015, j.Agramunt J.L.Tain K.Gabor , The Lower polyethylene pieces was swamped 
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The Lower polyethylene pieces was swamped.
In the photo beam comes from the left.
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Mon May 4 15:03:47 2015, J.Agramunt J.L.Tain K.Gabor , New detector placed under the beam line
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New detector placed under the beam line, below MUSIC chamber
This detector replace the USA tubes in the DACQ because we need the preamp to plug it.
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Mon May 4 04:14:18 2015, J.Agramunt J.L.Tain K.Gabor, AIDA trigger plugged in Mod2 Ch12
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| AIDA trigger plugged in Mod2 Ch12 |
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Mon May 4 03:20:00 2015, Shunji Nishimura, RNC New Rule
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We have some new rule about the data taken at RNC from this year.
Shunji
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Mon May 4 02:36:16 2015, J.Agramunt J.L.Tain K.Gabor, Maki trigger plugged in Mod2 Ch9
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Mon May 4 02:26:14 2015, J.Agramunt J.L.Tain K.Gabor, F11 trigger plugged in Mod2 Ch16 of Briken daq
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Sun May 3 10:10:13 2015, J.L. Tain, J. Agramunt, G. Kiss, 94Se setting measurement
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94Se setting:
File: 150503_1500_1554_94Se.root
Rate per tube (n/s): U=0.966, D=0.263, US=0.538
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Sun May 3 10:07:25 2015, J.L. Tain, J. Agramunt, G. Kiss, Photos of new PE shielding
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| Photos of the general arrangement and details of the new PE blocks |
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Sun May 3 09:04:07 2015, J.L. Tain, J. Agramunt, G. Kiss, Summary of neutron measurements
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U: (Up: 2 RIKEN tubes at 40cm from AIDA)
D: (Down: 12 RIKEN tubes at 80cm from AIDA)
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Sat May 2 19:32:08 2015, AE, transfer data AIDA->BRIKEN
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A test program for online data transfer is available in aidas1 PC at:
/homes/npg/aev/AIDAbriken/AIDA-jorge-san.exe
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Sat May 2 03:52:14 2015, J.L. Tain, 3He tube description
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3He tube drawings and technical details:
RIKEN, UPC, GSI, ORNL-1, ORNL-2 |
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Mon Apr 27 10:18:21 2015, K.Gabor S.Nishimura J.Agramunt, ORNL 3He tube at RIKEN
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Mon Apr 27 04:40:43 2015, G. Kiss, J. Agramunt, neutron background at Eurica
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Based on an about 8h long background measurement, the neutron background at the Eurica site was found to be about 0.006 neutron / sec (in the Riken tubes)
and 0.019 neutron / sec (in the ORNL tubes). The beam was OFF. |
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Sat Apr 25 08:25:42 2015, G. Kiss, J. Agramunt, BRIKEN Test setup
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Altogether 16 tubes are mounted for the parasitic detector test (see the attached photos):
- two tubes (belonging to RIKEN) are in a 10 cm x 10 cm x 30 cm polyethylene matrix inside Eurica, the distance from AIDA is about 30 cm
- 12 tubes (belonging to RIKEN) are in a 20 xm x 30 xm x 30 cm matrix, outside (below) Eurica, at the closest possible place to AIDA, the distance |
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Wed Feb 25 07:38:42 2015, A. Estrade J. Agramunt , Usage of synchronization test programs
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In order to access to the synchronization test, we prepare two programs in the PC briken1 ( 10.32.6.54).
To Launch the processes, in a terminal type: DataSink -i 3
In other terminal type SynCheck |
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Tue Feb 24 09:34:54 2015, J. Agramunt, H. Baba, A. Estrade, [DAQ] DAQ correlation test
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We have performed a successful test of the integration of independent DAQ systems based on a correlation
scalar counted from a common clock signal. The principles of the integration method are described in the
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