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  nuclear two-photon decay, Page 6 of 12  Not logged in ELOG logo
New entries since:Thu Jan 1 01:00:00 1970
ID Date Author Categorydown Subject
  18   Thu May 6 21:45:30 2021 HelmutDetectorsbeam position on TE5 grids
The two grids do not work very well, one x position is opposite to the other.
But at least a guidance for the future, this was good injection of 78Kr with a thick Be target.
Attachment 1: 2021-05-06_21-32-36-171.png
2021-05-06_21-32-36-171.png
  12   Thu May 6 16:45:42 2021 Ragan, Rui-JiuDAQData taking with NTCAP
NTCAP is on and data taking has started.
On time: 16:39

SC_2021-05-06_16-39-09
\IQ_2021-05-06_16-39-09

IQ Rate: 20 MS/s
Carrier frequency: 245 MHz
Reference level(dBm):-30
RF attenuation(dB):40
IF attenuation(dB):19.9288

Data file
Samples/records:2^18=262144
Records/File:2^12=4096

SC file: 
Entries/file:2^18=262144

Master path:
o:\E143\iq 
o:\E143\sc
Attachment 1: 1.jpg
1.jpg
Attachment 2: 2.jpg
2.jpg
  13   Thu May 6 17:02:49 2021 Ragan, Rui-JiuDAQScaler signals and parameters of NTCAP
At the moment, we record 7 signals in scaler channels and one Schottky signal (245 MHz resonance cavity) in the NTCAP with the attached information.
Attachment 1: p1.JPG
p1.JPG
Attachment 2: p2.JPG
p2.JPG
Attachment 3: p4.png
p4.png
  15   Thu May 6 18:21:42 2021 Ragan, Rui-JiuDAQNTCAP started again
NTCAP was stopped at 17:34 for the optimisation purpose.
NTCAP started again at 18:20 with the change in Reference Level (dBm): 0

SC_2021-05-06_18-20-05
\IQ_2021-05-06_18-20-05
Attachment 1: IMG_20210506_182118.jpg
IMG_20210506_182118.jpg
Attachment 2: IMG_20210506_182017.jpg
IMG_20210506_182017.jpg
  20   Thu May 6 23:06:18 2021 Rui-Jiu ChenDAQChange reference level to -50dBm
Beam is secondary beam now. The intensity is lower. Change reference level to -50dBm.
Carrier frequency:245MHz
IQ rate(S/s): 20M.
Reference Level: -50 dBm.

Start taking data.
SC_2021-05-06_23_02_46
IQ_2021-05-06_23_02_33
  22   Fri May 7 01:44:24 2021 Rui-Jiu ChenDAQChange reference level to -40dBm
Reference Level: -40 dBm.

Start taking data.
SC_2021-05-07_00-06-57
IQ_2021-05-07_00-06-57
  23   Fri May 7 01:47:36 2021 Ragan, Rui-JiuDAQChange reference level to -30dBm
Reference Level: -30 dBm.

Start taking data.
SC_2021-05-07_00-11-24
IQ_2021-05-07_00-11-24
  24   Fri May 7 01:49:03 2021 Rui-Jiu ChenDAQComparison of I_Raw/Q_Raw between different reference level
This is a comparison of I_Raw/Q_Raw between different reference level. The range of NTCAP ADC is only 2^15 bit. So signals (I_Raw and Q_Raw) should 
not be outside ADC range. It is clear that there is not point outside the ADC range when using reference level -30dBm.
Attachment 1: 20210501_NTCAPPreparation.png
20210501_NTCAPPreparation.png
  66   Sat May 8 03:05:42 2021 Rui-Jiu ChenDAQChange reference level to -60dBm
Start a new run. The data of new run is in :
SC_2021-05-07_17-33-29
IQ_2021-05-07_17-33-29
  67   Sat May 8 03:08:57 2021 Rui-Jiu ChenDAQChange reference level to -50dBm
Start a new run. The data of new run is in :
SC_2021-05-07_17-39-16
IQ_2021-05-07_17-39-16
  78   Sat May 8 18:35:25 2021 Rui-Jiu ChenDAQChange reference level to -10dBm
The beam in ESR is 78Kr36+@476 MeV/u.
Start a new run:
SC_2021-05-08_18-25-52
IQ_2021-05-08_18-25-52
  79   Sat May 8 19:51:46 2021 Ragan, Rui-JiuDAQChange reference level to -50dBm
Start a new run. The data of new run is in :
SC_2021-05-08_19-51-35
IQ_2021-05-08_19-51-35
  119   Sun May 9 23:59:26 2021 Rui-Jiu ChenDAQStart a new run.
Start a new run. The data of new run is in :
reference level = -50dBm.
SC_2021-05-09_23-43-37
IQ_2021-05-09_23-43-37
  120   Mon May 10 00:00:49 2021 Ragan, Rui-JiuDAQChange reference level to -70dBm
Start a new run. The data of new run is in :
SC_2021-05-09_23-56-42
IQ_2021-05-09_23-56-42
  121   Mon May 10 00:08:26 2021 Rui-Jiu ChenDAQChange reference level to -60dBm
Start a new run. The data of new run is in :
SC_2021-05-10_00-08-08
IQ_2021-05-10_00-08-08
  136   Mon Jun 28 18:32:49 2021 Ruijiu, ShahabDAQtrigger signal connected to NTCAP and analyzers
Attachment 1: tri.jpg
tri.jpg
  139   Tue Jun 29 20:40:55 2021 Rui-Jiu ChenDAQstart NTCAP
Carrier Frequency:245MHz.
IQ rate 20MSamples/s
Reference level:-90 dBm
SC_2021-06-29_20-38-27
IQ_2021-06-29_20-38-27
  168   Thu Jul 1 15:25:42 2021 Rui-Jiu ChenDAQtemplate of NTCAP shift
Please check following two parameters every two hours into make sure the NTCAP is running well: 
1. The latest recorded tdms files:
 p:\E143\sc\**\**
 p:\E143\iq\**\**
2. The rest space on the drive "p:\" : **GByte.
  172   Thu Jul 1 18:01:52 2021 Andrew Nic ShahabDAQChange triggers to 10%
Change the triggers to 10%. Last files with 50/50:
410MhZ 2021-.07.01.17.56.12.936
245MhZ 2021.07.01.18.02.16.938 
  178   Thu Jul 1 19:34:11 2021 ShahabDAQincrease factor 4 in power for 410
increase factor 4 in power for 410 



before:

410MHz-2021.07.01.18.48.07.516.tiq.png


after:

410MHz-2021.07.01.19.23.49.099.tiq.png
Attachment 1: 410MHz-2021.07.01.19.23.49.099.tiq.png
410MHz-2021.07.01.19.23.49.099.tiq.png
Attachment 2: 410MHz-2021.07.01.18.48.07.516.tiq.png
410MHz-2021.07.01.18.48.07.516.tiq.png
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