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Shoram444 / SNSensitivityEstimate

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Create backgrounds overview table #22

Open Shoram444 opened 7 months ago

Shoram444 commented 7 months ago

DETECTOR BACKGROUND SDBDRC

SIMUALTED ISOTOPE DECAY SOURCE N_SIM EFFICIENCY (2e [^4] cut) [%] ACTIVITY [Bq/kg or Bq/m3] AMOUNT [kg or m3] N_EXP [#] HOW
[x] 214Bi $\beta + \gamma$ source_foil_bulk 1e8 0.16 0.0003 6.25kg 240.8 Contamination; beta + moller; beta + gamma (compt); beta + IC
[x] 214Bi $\beta + \gamma$ source_foil_surface 1e7 0.039 0.00015[^1] 48m3 220.7 radon induced BiPo
[x] 214Bi $\gamma$ PMT_glass_bulk 1e7 0.00034 0.490 286kg 37527.8 contamination on PMT; HE $\gamma$ + compt + crossing $e^-$
[x] 214Bi $\beta + \gamma$ wire_bulk 1e7 0.022 1e-5[^2] 20kg[^2] 3.49 same as 214Bi source_foil_bulk
[x] 214Bi $\beta + \gamma$ wire_surface 1e7 0.018 0.00015[^1] 48m3 99.96 same as 214Bi source_foil_surface
[ ] 214Bi $\beta + \gamma$ PMT_scint N/A N/A 0.00014 N/A [^3] N/A contamination on scintilator; HE $\gamma$ + compt + crossing $e^-$
[x] 208Tl $\beta + \gamma$ source_foil_bulk 1e8 0.099 5.4e-5 6.25kg 26.41 Contamination; beta + moller; beta + gamma (compt); beta + IC
[x] 208Tl $\beta + \gamma$ source_foil_surface 1.17e8 0.031 0.00015[^1] 48m3 175.97 radon induced BiPo
[x] 208Tl $\gamma$ PMT_glass_bulk 1e8 0.00093 0.144755 286kg 30355 contamination on PMT; HE $\gamma$ + compt + crossing $e^-$
[ ] 208Tl $\beta + \gamma$ wire_bulk N/A N/A 1e-5[^2] 20kg[^2] N/A same as 214Bi source_foil_bulk
[ ] 208Tl $\beta + \gamma$ wire_surface N/A N/A 0.00015[^1] 48m3 N/A same as 214Bi source_foil_surface
[x] 234mPa $\beta $ source_foil_bulk 1e8 0.17 0.017 6.25kg 14434.1 Contamination; beta + moller;
[x] 40K $\beta + \gamma $ source_foil_bulk 1e8 0.040 0.059 6.25kg 11629.1 Contamination; beta + moller; beta + gamma (compt); beta + IC
[x] 40K $\gamma$ (1.5MeV) PMT_glass_bulk 1e8 5.4e-5 1.458 286kg 17753.2 contamination on PMT; HE $\gamma$ + compt + crossing $e^-$
[ ] 40K $\gamma$ (1.5MeV) PMT_scint N/A N/A 0.0206 N/A [^3] N/A contamination on scintilator; HE $\gamma$ + compt + crossing $e^-$
[x] 210Bi $\beta + \gamma$ source_foil_surface 1e6 0.0024 0.00015[^1] 48m3 13.6 radon induced BiPo
[x] 210Bi $\beta + \gamma$ wire_bulk 1e6 0.0012 1e-5[^2] 20kg[^2] 0.19 same as 214Bi source_foil_bulk
[x] 210Bi $\beta + \gamma$ wire_surface 1e6 0.0011 0.00015[^1] 48m3 5.7 same as 214Bi source_foil_surface

[^1]: expected radon acitvity (found this number somewhere, no idea if it's correct) [^2]: mock value, I have no idea what the numbers here should be [^3]: what is the total mass of scintilators? [^4]: Event passes cut if it has: exactly 2 tracks; exactly 2 OM hits; exactly 2 Negative particles; exactly 2 Associtated hits; Sum energy 0<E<3500 keV

Shoram444 commented 7 months ago

SDBDRC + vertex

isotope expected counts
 $\varepsilon$
[%]		 activity
[Bq/amount]		 amount
$[\textrm{kg or m^3 or l}]$		 simulated events
K40_PMT_glass_bulk 17753.2 5.4e-5 1.45804 286.0 1.0e8
Bi210_foil_surface 9.65002 0.0017 0.00015 48.0 1.0e6
Tl208_PMT_glass_bulk 29604.3 0.000907 0.144755 286.0 1.0e8
Bi210_foil_bulk 0.290722 0.0059 1.0e-5 6.25 1.0e6
Bi214_PMT_glass_bulk 35320.3 0.00032 0.48951 286.0 1.0e7
bb_foil_bulk 70675.7 8.33545 0.00172074 6.25 1.0e8
Bi214_wire_bulk 2.24536 0.01424 1.0e-5 20.0 1.0e7
Tl208_foil_surface 158.524 0.0279265 0.00015 48.0 1.17e8
Bi214_foil_bulk 216.515 0.146467 0.0003 6.25 1.0e8
Bi214_wire_surface 66.131 0.01165 0.00015 48.0 1.0e7
K40_foil_bulk 8776.83 0.030344 0.0587 6.25 1.0e8
Bi210_wire_bulk 0.141912 0.0009 1.0e-5 20.0 1.0e6
Bi214_foil_surface 192.546 0.03392 0.00015 48.0 1.0e7
Bi210_wire_surface 3.40589 0.0006 0.00015 48.0 1.0e6
Pa234m_foil_bulk 12539.9 0.147103 0.0173 6.25 1.0e8
Tl208_foil_bulk 25.4167 0.095521 5.4e-5 6.25 1.0e8
Total_bkg 1.7532e5 0.0 0.0 0.0 0.0
Shoram444 commented 7 months ago

SDBDRC + vertex + prob

isotope expected counts
 $\varepsilon$
[%]		 activity
[Bq/amount]		 amount
$[\textrm{kg or m^3 or l}]$		 simulated events
K40_PMT_glass_bulk 328.763 1.0e-6 1.45804 286.0 1.0e8
Bi210_foil_surface 5.67648 0.001 0.00015 48.0 1.0e6
Tl208_PMT_glass_bulk 261.118 8.0e-6 0.144755 286.0 1.0e8
Bi210_foil_bulk 0.280867 0.0057 1.0e-5 6.25 1.0e6
Bi214_PMT_glass_bulk 1103.76 1.0e-5 0.48951 286.0 1.0e7
bb_foil_bulk 67355.3 7.94385 0.00172074 6.25 1.0e8
Bi214_wire_bulk 0.912967 0.00579 1.0e-5 20.0 1.0e7
Tl208_foil_surface 113.874 0.0200607 0.00015 48.0 1.17e8
Bi214_foil_bulk 203.014 0.137334 0.0003 6.25 1.0e8
Bi214_wire_surface 25.4874 0.00449 0.00015 48.0 1.0e7
K40_foil_bulk 7381.51 0.02552 0.0587 6.25 1.0e8
Bi210_wire_bulk 0.063072 0.0004 1.0e-5 20.0 1.0e6
Bi214_foil_surface 175.176 0.03086 0.00015 48.0 1.0e7
Xi037_foil_bulk 62870.8 7.41495 0.00172074 6.25 1.0e8
Bi210_wire_surface 2.27059 0.0004 0.00015 48.0 1.0e6
Pa234m_foil_bulk 11859.5 0.139121 0.0173 6.25 1.0e8
Tl208_foil_bulk 21.8049 0.081947 5.4e-5 6.25 1.0e8
Total_bkg 1.51688e5 0.0 0.0 0.0 0.0
Shoram444 commented 6 months ago

ROI: (2500, 3000) keV; εSignal = 19.61656 %

Bkgprocess nb effBkg
Tl208_foil_bulk 0.0275447 0.002795
Bi214_foil_bulk 0.217155 0.004407
Bi214_foil_surface 1.80938 0.00102
Bi214_wire_surface 0.248346 0.00014
bb_foil_bulk 16.8307 0.001985

ROI: (2600, 3200) keV; εSignal = 17.37617 %

Bkgprocess nb effBkg
Tl208_foil_bulk 0.0337435 0.003424
Bi214_foil_bulk 0.115353 0.002341
Bi214_foil_surface 0.993384 0.00056
Bi214_wire_surface 0.124173 7.0e-5
bb_foil_bulk 3.21351 0.000379

ROI: (2700, 3100) keV; εSignal = 13.355929999999999 %

Bkgprocess nb effBkg
Tl208_foil_bulk 0.0233268 0.002367
Bi214_foil_bulk 0.0532663 0.001081
Bi214_foil_surface 0.567648 0.00032
Bi214_wire_surface 0.088695 5.0e-5
bb_foil_bulk 0.271326 3.2e-5

ROI: (2700, 3200) keV; εSignal = 13.35693 %

Bkgprocess nb effBkg
Tl208_foil_bulk 0.0281952 0.002861
Bi214_foil_bulk 0.0533156 0.001082
Bi214_foil_surface 0.567648 0.00032
Bi214_wire_surface 0.088695 5.0e-5
bb_foil_bulk 0.271326 3.2e-5

ROI: (2800, 3200) keV; εSignal = 6.985569999999999 %

Bkgprocess nb effBkg
Tl208_foil_bulk 0.0220555 0.002238
Bi214_foil_bulk 0.0192665 0.000391
Bi214_foil_surface 0.230607 0.00013
Bi214_wire_surface 0.053217 3.0e-5
bb_foil_bulk 0.00847893 1.0e-6
Shoram444 commented 5 months ago

Expected number of background counts per bin

Using data with 7% $\Delta E$; 2.5yr;15.32kg.yr;

bins
keV		 bExp
#		 bin_count
#
2500:2600 14.8403 13
2600:2700 3.66405 4
2700:2800 0.868031 2
2800:2900 0.459569 1
2900:3000 0.331882 0
3000:3100 0.240242 1
3100:3200 0.206246 0
3200:3300 0.180472 0
3300:3400 0.150099 1
3400:3500 0.109163 0

Using data with 7% $\Delta E$; 2.88yr; 17.25kg.yr;

bins
Any		 bExp
Any		 b_n1
Int64
2500:100:2600 17.096 17
2600:100:2700 4.22099 2
2700:100:2800 0.999972 1
2800:100:2900 0.529423 1
2900:100:3000 0.382328 1
3000:100:3100 0.276759 1
3100:100:3200 0.237596 0
3200:100:3300 0.207903 1
3300:100:3400 0.172914 0
3400:100:3500 0.125756 0
Shoram444 commented 3 months ago

Effect of ToF cut on external gammas

Simulated $10^{10}$ events of ${}^{208}Tl$, ${}^{214}Bi$ and ${}^{40}K$:

Isotope n vertex n tof vertex/tof eff vertex eff tof
208 Tl 144216 387 372.6 1.3e-5 3.5e-8
40 K 6921 8 865.1 6.3e-7 7.3e-10
214 Bi 55019 86 639.8 5.0e-6 7.9e-9
Shoram444 commented 3 months ago

Data cuts used:

Used backgrounds/acitivities:

process activitiy [Bq/kg or Bq/m3] amount [kg of m3]
2nubb_foil_bulk 0.001721 6.07 kg
Bi214_foil_bulk 1e-5 6.25 kg
Bi214_wire_furface 0.00015 15 m3
Tl208_foil_bulk 2e-6 6.25 kg

Sensitivity table:

FWHM B field sig_eff ROI bkg Nbexcl T12 freq mu_U T12 Bay
8% on 11.73% 2700-3100 0.61 2.92 3.58e24 2.31 4.41e24
12% on 11.58% 2700-3200 1.30 3.40 3.04e24 2.47 4.36e24
12% off 14.32% 2700-3200 1.65 3.62 3.53e24 2.34 5.39e24