SLIDE 1
PMT Measurements of PEN and Friends at MPP
Oliver Schulz PEN Meeting, TU-Dortmund, LKT, March 12 2018
- schulz@mpp.mpg.de
PMT Measurements of PEN and Friends at MPP Oliver Schulz - - PowerPoint PPT Presentation
PMT Measurements of PEN and Friends at MPP Oliver Schulz - - PowerPoint PPT Presentation
PMT Measurements of PEN and Friends at MPP Oliver Schulz oschulz@mpp.mpg.de PEN Meeting, TU-Dortmund, LKT, March 12 2018 First results with new PMT setup at MPP (see previous talk) Source: Cs-137 DAQ: Struck SIS3316, 14 bit, 250 Msps Analysis
SLIDE 2
SLIDE 3
BC408 Pulse Shapes
In [18]: waveforms_bc408 = av(parent(wfanalysis_bc408[:waveforms])[250:(250 + 12), :]); plot_pulse_hist(waveforms_bc408, -20:1:1500) Out[18]:
2.5 5.0 7.5 10.0 12.5 500 1000 1500
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SLIDE 4
PEN Pulse Shapes
In [9]: waveforms_pen = av(parent(wfanalysis_pen[:waveforms])[245:(245 + 40), :]); plot_pulse_hist(waveforms_pen, -20:1:300) Out[9]:
10 20 30 40 100 200 300
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SLIDE 5
BC408 Pulse Shape Examples (same Integral)
In [19]: waveforms_bc408_sel = wfanalysis_bc408[entrysel(E_dep -> 2000 < E_dep < 2010, wfan alysis_bc408, :peak_integral), :][:waveforms]; @manipulate for i in eachindex(waveforms_bc408_sel) plot(waveforms_bc408_sel[i][25 2:(252 + 5)]) end Out[19]:
1 2 3 4 5 6 200 400 600 800 y1
SLIDE 6
PEN Pulse Shape Examples (same Integral)
In [11]: waveforms_pen_sel = wfanalysis_pen[entrysel(E_dep -> 600 < E_dep < 601, wfanalysis _pen, :peak_integral), :][:waveforms]; @manipulate for i in eachindex(waveforms_pen_sel) plot(waveforms_pen_sel[i][245:(2 45 + 40)]) end Out[11]:
10 20 30 40 20 40 60 80 y1
SLIDE 7
BC408
In [12]: plots_bc408 = plot_wfanalysis(wfanalysis_bc408) Out[12]:
100 200 300 400 500
- 20
20 40 60 80 100
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 2500 5000 7500 10000 100 101 102 103 104
Peak Integral
ADC value Counts
Long window Short window
- 2.5
0.0 2.5 5.0 100 101 102 103 104
Post-Pulse Baseline Level
Integral Counts
2500 5000 7500 10000 0.0 0.3 0.6 0.9 1.2
PSA vs. Peak Integral
Peak integral (long) PSA short/long integral
250 500 750 1000 1250 1500 1750 2000 2250
SLIDE 8
PEN, LKT Exp. 4
In [13]: plots_pen = plot_wfanalysis(wfanalysis_pen) Out[13]:
100 200 300 400 500
- 20
20 40 60 80 100
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1000 2000 3000 100 101 102 103 104
Peak Integral
ADC value Counts
Long window Short window
- 4
- 2
2 4 6 100 101 102 103 104
Post-Pulse Baseline Level
Integral Counts
500 1000 1500 2000 2500 3000 3500 0.0 0.3 0.6 0.9 1.2
PSA vs. Peak Integral
Peak integral (long) PSA short/long integral
250 500 750 1000 1250
SLIDE 9
PET-G, 3D-Printed
In [14]: plots_petg = plot_wfanalysis(wfanalysis_petg) Out[14]:
100 200 300 400 500
- 20
20 40 60 80 100
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 500 1000 1500 2000 100 101 102 103
Peak Integral
ADC value Counts
Long window Short window
- 4
- 2
2 4 6 100 101 102 103 104
Post-Pulse Baseline Level
Integral Counts
500 1000 1500 2000 0.0 0.3 0.6 0.9 1.2
PSA vs. Peak Integral
Peak integral (long) PSA short/long integral
50 100 150 200 250
SLIDE 10
PMMA Blank, same size at PET-G
In [15]: plots_pmma = plot_wfanalysis(wfanalysis_pmma) Out[15]:
100 200 300 400 500
- 20
20 40 60 80 100
Signal Shapes
Sample [4ns] Counts
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 500 1000 1500 100 101 102 103
Peak Integral
ADC value Counts
Long window Short window
- 2
2 4 6 100 101 102 103
Post-Pulse Baseline Level
Integral Counts
250 500 750 1000 1250 1500 1750 0.0 0.3 0.6 0.9 1.2
PSA vs. Peak Integral
Peak integral (long) PSA short/long integral
25 50 75 100
SLIDE 11
Energy Spectra (uncalibrated)
In [17]: plot_wfanalyses_spectra(wfanalyses) Out[17]:
1000 2000 3000 0.0 0.2 0.4 0.6 0.8
E [arb. unit] Count rate [1 / s / energy-unit]
BC408 PEN PET-G PMMA
SLIDE 12