Summary of simulation results at the NEAR Station (February 2021)

See previous page for the NEAR Station setup configurations.


Filter material in all cases: Boron Carbide (B4C)
Filter thickness grid [cm] : 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

M81: No-moderator

no moderator
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M81 30 - 27 0.39641E+09 1.0 0.23095E+09 No-moderator M81-input-nspectrum

M81-No-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M81-No-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M81-No-moderator-evol.gif
Movie frames for different the filter thickness grid

M82: Shelf-position-light

moderator on the shelf, 25 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M82 30 AlF3 27 0.13209E+09 1.0 0.68262E+08 Shelf-position-light M82-input-nspectrum

M82-Shelf-position-light-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M82-Shelf-position-light-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M82-Shelf-position-light-evol.gif
Movie frames for different the filter thickness grid

M83: Shelf-position-heavy

moderator on the shelf, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M83 30 AlF3 27 0.92037E+08 1.0 0.42789E+08 Shelf-position-heavy M83-input-nspectrum

M83-Shelf-position-heavy-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M83-Shelf-position-heavy-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M83-Shelf-position-heavy-evol.gif
Movie frames for different the filter thickness grid

M84: Al-moderator

pure Aluminum moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M84 30 Al 27 0.12942E+09 1.0 0.66439E+08 Al-moderator M84-input-nspectrum

M84-Al-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M84-Al-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M84-Al-moderator-evol.gif
Movie frames for different the filter thickness grid

M85: AlF3+BPE-moderator

AlF3(10cm) + BPE(10cm) moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M85 30 AlF3+BPE 27 0.52383E+08 1.0 0.24586E+08 AlF3+BPE-moderator M85-input-nspectrum

M85-AlF3+BPE-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M85-AlF3+BPE-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M85-AlF3+BPE-moderator-evol.gif
Movie frames for different the filter thickness grid

M86: Al+BPE-moderator

Al(10cm) + BPE(10cm) moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M86 30 Al+BPE 27 0.53485E+08 1.0 0.26267E+08 Al+BPE-moderator M86-input-nspectrum

M86-Al+BPE-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M86-Al+BPE-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M86-Al+BPE-moderator-evol.gif
Movie frames for different the filter thickness grid

M91: No-moderator

no moderator
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M91 30 - 30 0.55493E+11 1.0 0.22687E+11 No-moderator M91-input-nspectrum

M91-No-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M91-No-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M91-No-moderator-evol.gif
Movie frames for different the filter thickness grid

M92: Shelf-position-light

moderator on the shelf, 25 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M92 30 AlF3 30 0.42160E+11 1.0 0.15195E+11 Shelf-position-light M92-input-nspectrum

M92-Shelf-position-light-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M92-Shelf-position-light-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M92-Shelf-position-light-evol.gif
Movie frames for different the filter thickness grid

M93: Shelf-position-heavy

moderator on the shelf, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M93 30 AlF3 30 0.38898E+11 1.0 0.13383E+11 Shelf-position-heavy M93-input-nspectrum

M93-Shelf-position-heavy-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M93-Shelf-position-heavy-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M93-Shelf-position-heavy-evol.gif
Movie frames for different the filter thickness grid

M94: Al-moderator

pure Aluminum moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M94 30 Al 30 0.41498E+11 1.0 0.15009E+11 Al-moderator M94-input-nspectrum

M94-Al-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M94-Al-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M94-Al-moderator-evol.gif
Movie frames for different the filter thickness grid

M95: AlF3+BPE-moderator

AlF3(10cm) + BPE(10cm) moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M95 30 AlF3+BPE 30 0.33209E+11 1.0 0.11218E+11 AlF3+BPE-moderator M95-input-nspectrum

M95-AlF3+BPE-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M95-AlF3+BPE-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M95-AlF3+BPE-moderator-evol.gif
Movie frames for different the filter thickness grid

M96: Al+BPE-moderator

Al(10cm) + BPE(10cm) moderator, 40 kg
ID BPE thickness [cm] moderator scoring position flux [n/cm2/pp] B filter thickness [cm] filtered flux [n/cm2/pp] full numerical printout input nspectrum file
M96 30 Al+BPE 30 0.33646E+11 1.0 0.11503E+11 Al+BPE-moderator M96-input-nspectrum

M96-Al+BPE-moderator-fluence.png
Neutron flux for plain and Boron (1 cm) filtered beams
M96-Al+BPE-moderator-framex.png
Comparison to a maxwellian spectrum and cumulative SACS
M96-Al+BPE-moderator-evol.gif
Movie frames for different the filter thickness grid


Integrated Flux

ID setup Total [n/cm2/pp] E < 1 keV 1 keV < E < 1 MeV E > 1 MeV
M81 No-moderator 3.9641e+08 1.9301e+07 2.4557e+08 1.3154e+08
M82 Shelf-position-light 1.3209e+08 1.5372e+07 7.5527e+07 4.1196e+07
M83 Shelf-position-heavy 9.2037e+07 1.4823e+07 5.2430e+07 2.4785e+07
M84 Al-moderator 1.2942e+08 1.5303e+07 7.8492e+07 3.5620e+07
M85 AlF3+BPE-moderator 5.2383e+07 1.1219e+07 2.3923e+07 1.7241e+07
M86 Al+BPE-moderator 5.3485e+07 1.1024e+07 2.2937e+07 1.9524e+07
M91 No-moderator 5.5493e+10 1.0668e+10 3.9751e+10 5.0741e+09
M92 Shelf-position-light 4.2160e+10 1.0467e+10 2.8952e+10 2.7411e+09
M93 Shelf-position-heavy 3.8898e+10 1.0394e+10 2.6325e+10 2.1788e+09
M94 Al-moderator 4.1498e+10 1.0316e+10 2.8619e+10 2.5626e+09
M95 AlF3+BPE-moderator 3.3209e+10 9.4801e+09 2.1899e+10 1.8291e+09
M96 Al+BPE-moderator 3.3646e+10 9.4573e+09 2.2271e+10 1.9183e+09

-- AlbertoMengoni - 2021-02-14

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Topic revision: r2 - 2021-02-15 - AlbertoMengoni
 
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