 Tue Nov 29 05:18:50 2016, TD, Offline analysis of R31 10x
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Offline analysis of AIDA data files from R31_0 to c. R31_5 (elapsed time 1120.45s)
Note impact of increased noise ( https://elog.ph.ed.ac.uk/AIDA/494 )on LEC spectra,
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Mon Nov 28 18:07:14 2016, CG, TD, AE, DK, Tuesday 29 November 42x
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01:39 : Attachment 26 (R30_70to72) shows a gradual change in the hit pattern for DSSD2 (at the lower left
corner) which may indicate the noise level was increasing.
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Mon Nov 28 15:53:39 2016, AE, AT, RG, CG, DAQ synchronization 7x
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We noticed a peculiar feature in the time-stamp synchronization monitor. The spectra of timestamp difference between pairs of DAQ systems show, for all
possible pair combinations, a peak at Delta(ts)= 65535 = 2**15
This corresponds to a difference of 2.6 ms (for 25MHz correlation clock). See the attachments taken ~23:00 of Nov 28th. |
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Mon Nov 28 13:12:31 2016, PV, AE, Liu, Implantation profile in AIDA with 8mm Al replacing 3 mm Pb
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Data for ~3 hrs: Nov 28th, 20:06 to 23:16
Bigrips run 1060 to 1062
AIDA run R30_ 2 to R30_40 |
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Mon Nov 28 11:55:20 2016, TD, Offline analysis R30_2
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Degrader (8mm Al) fixed + ( 0.3mm W/1mm Al + 1mm W/1mm Al)
S O R T C O M P L E T E ..... Mon Nov 28 20:53:02 2016
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Mon Nov 28 06:49:04 2016, DK, Offline analysis R27_1
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Conditions: One Pb wall with empty windows. 3mm Pb degrader closer to AIDA, on the front of PE wall
Variable degraders: 1.0 mm W (+1 mm Al) and 0.3 mm W (+1 mm Al)
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Mon Nov 28 05:38:39 2016, DK, Offline analysis R28_14
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Conditions: Two Pb walls with empty windows. 3mm Pb degrader between MUSIC 1 and MUSIC 2.
Variable degraders: 1.0 mm W (+1 mm Al) and 0.3 mm W (+1 mm Al)
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Sun Nov 27 22:35:37 2016, Liu, PV, AE, Ion hit pattern in AIDA after degrader changing
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After changing degrader to optimize 40Mg, hit pattern in AIDA is shown in figure below.
The implantation position changed from right side position of first DSSD to center position of last DSSD. |
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Sun Nov 27 19:33:00 2016, Liu, PV, AE, F11 degrader setting (night Nov27-Nov28)
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Analysis of files for two more settings of F11 degrader to optimize implantation of 40Mg.
+ setting 1: from Nov 27th, 22:16
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Sun Nov 27 16:29:51 2016, CG, AE, DK, Monday 28 November 12x
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01.28 Beam stopped temporarily.
~750MB into R26_38.
Bias and leakage currents ok, as are FEE temps (attachments 1-3).
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Sun Nov 27 12:53:04 2016, TD, Offline analysis R24_3
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S O R T C O M P L E T E ..... Sun Nov 27 20:32:48 2016
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Sun Nov 27 12:30:41 2016, AE, PV, Energy loss in Degraders and Implantation for runs 1028 and 1033 6x
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Implantation profile in AIDA
BigRIPS file 1028 (Attachment run1028.png): Degrader setting: 3 mm Pb(fix) + 0.8 mm W(variable) + 2 mm Al(variable)
BigRIPS file 1033 (Attachment run1033.png): Degrader setting: 3 mm Pb(fix) + 0.8 mm W(variable) + 2 mm Al(variable) + 1 mm |
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Sun Nov 27 06:35:47 2016, TD, DK, AE, Sunday 27 November - part 2 14x
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14.15 BigRIPS run number is now 1029
15.22 BigRIPS run number is now 1030
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Sun Nov 27 05:30:51 2016, TD, Offline analysis of R12
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Offline analysis of R12 LEC -> MEC setting
S O R T C O M P L E T E ..... Sun Nov 27 14:37:35 2016
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Sun Nov 27 03:25:20 2016, TD, [How to] AIDA discriminator thresholds
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The function and setting of the AIDA discriminators is as follows:
LEC (20MeV FSR) MEC (1GeV FSR) HEC (20GeV FSR) Function
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Sun Nov 27 02:46:54 2016, DK, Offline analysis of R18_2
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Run R18_2: 3 mm Pb, 0.5 mm W (+1 mm Al) and 0.3 mm W (+1 mm Al)
*** data items: 261088000 ( 105923.42 Hz) |
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Sat Nov 26 20:26:06 2016, Liu, AE, Analysis of implantation profile in AIDA
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Here we show the PID plot and implantation depth in AIDA from BigRIPS file 40Mg1012 (1 hr of data from 20:30 in Nov 26th), merged with AIDA files R10_8
to R10_29
The more neutron-rich isotopes have a shorter range in AIDA, and seem to be implanted towards the first layers of the stack. For 40Mg - most |
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Sat Nov 26 17:14:47 2016, TD, Visual scaler inputs
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Visual scaler inputs
1 F11
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Sat Nov 26 15:32:38 2016, TD, AE, CG, DK, Sunday 27 November 19x
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00.33 DSSSD bias & leakage currents OK - see attachments 1 & 2
FEE64 temperatures OK - see attachment 3
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Sat Nov 26 12:18:25 2016, AE, Saturday 26 November, Part III 6x
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19:30 Power cycled of AIDA reuired after Ge filling
20:04 Started new run: R10_0
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