NEAR Station working group

In this page you find the material/documents discussed at the 7th meeting of the NEAR-WG of 24 February 2020

Configurations



Collimator design example.png
Design example of collimator (from M Barbagallo's presentation)

NEAR Station scoring positions.png
NEAR station scoring positions (from M Barbagallo's presentation)

bpe30-27

BPE thickness [cm] moderator scoring position
30 - 27

framex bpe30-27.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.511     12.993      2.733
  0.10      0.026     61.114      1.935     31.582
  0.20      0.099     21.287      0.952     22.354
  0.40      1.169      5.715      0.588      9.726
  0.50      1.783      4.119      0.500      8.237
  1.00      8.935      1.206      0.288      4.185
  1.20     10.228      1.095      0.246      4.453
  1.21     10.266      1.093      0.245      4.462
  1.30     10.847      1.051      0.229      4.590
  1.34     11.092      1.034      0.223      4.643
  1.50     12.066      0.976      0.201      4.864
  2.00     15.126      0.838      0.150      5.571
  3.00     21.496      0.669      0.093      7.220
  5.00     32.891      0.520      0.042     12.341
 10.00     49.725      0.418      0.013     32.544
evol B bpe30-27.gif
bpe30-27

bpe30-Al-27

BPE thickness [cm] moderator scoring position
30 Al 27

framex bpe30-Alsmall-27.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.511      8.749      4.059
  0.10      0.024     68.505      1.180     58.036
  0.20      0.085     23.166      0.558     41.550
  0.40      0.817      7.466      0.356     20.974
  0.50      1.143      5.813      0.311     18.691
  1.00     13.091      0.923      0.206      4.471
  1.20     15.056      0.840      0.186      4.525
  1.21     15.117      0.838      0.185      4.526
  1.30     16.104      0.804      0.177      4.534
  1.34     16.520      0.790      0.174      4.538
  1.50     18.279      0.741      0.163      4.542
  2.00     24.883      0.612      0.137      4.481
  3.00     39.834      0.469      0.102      4.616
  5.00     59.988      0.380      0.061      6.215
 10.00   2060.460      0.032      0.025      1.285
evol B bpe30-Alsmall-27.gif
bpe30-Alsmall-27

bpe30-AlF3-27

BPE thickness [cm] moderator scoring position
30 AlF3 27

framex bpe30-AlF3small-27.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.511     10.523      3.375
  0.10      0.024     66.148      1.377     48.048
  0.20      0.088     22.794      0.630     36.200
  0.40      0.955      6.657      0.393     16.935
  0.50      1.349      5.116      0.340     15.039
  1.00     10.943      1.044      0.216      4.827
  1.20     12.745      0.940      0.192      4.900
  1.21     12.800      0.937      0.191      4.898
  1.30     13.668      0.896      0.182      4.924
  1.34     14.048      0.880      0.178      4.934
  1.50     15.617      0.820      0.165      4.962
  2.00     21.387      0.671      0.135      4.979
  3.00     34.340      0.508      0.096      5.283
  5.00     50.500      0.414      0.055      7.540
 10.00   2136.770      0.031      0.021      1.448
evol B bpe30-AlF3small-27.gif
bpe30-AlF3small-27

bpe30-Al-30

BPE thickness [cm] moderator scoring position
30 Al 30

framex bpe30-Alsmall-30.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.511     18.480      1.922
  0.10      0.024     66.423      2.568     25.865
  0.20      0.085     23.193      1.177     19.700
  0.40      0.946      6.709      0.729      9.197
  0.50      1.298      5.274      0.631      8.362
  1.00      8.024      1.304      0.407      3.201
  1.20     10.166      1.100      0.366      3.002
  1.21     10.227      1.095      0.365      2.999
  1.30     11.183      1.029      0.350      2.937
  1.34     11.593      1.003      0.344      2.912
  1.50     13.292      0.914      0.324      2.819
  2.00     20.240      0.694      0.279      2.489
  3.00     39.612      0.470      0.225      2.093
  5.00     57.988      0.387      0.157      2.459
 10.00    986.186      0.069      0.071      0.970
evol B bpe30-Alsmall-30.gif
Nbpe30-Alsmall-30

bpe30-AlF3-30

BPE thickness [cm] moderator scoring position
30 AlF3 30

framex bpe30-AlF3small-30.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.511     18.902      1.879
  0.10      0.025     65.226      2.730     23.892
  0.20      0.087     22.882      1.295     17.673
  0.40      1.071      6.111      0.819      7.460
  0.50      1.476      4.771      0.712      6.701
  1.00      8.194      1.284      0.464      2.770
  1.20     10.027      1.110      0.417      2.664
  1.21     10.080      1.107      0.416      2.663
  1.30     10.907      1.047      0.398      2.628
  1.34     11.264      1.024      0.392      2.614
  1.50     12.726      0.941      0.368      2.559
  2.00     18.047      0.747      0.315      2.372
  3.00     31.569      0.533      0.250      2.129
  5.00     47.952      0.425      0.171      2.491
 10.00     71.448      0.349      0.071      4.912
evol B bpe30-AlF3small-30.gif
bpe30-AlF3small-30

NS3 (abandoned configuration)

BPE thickness [cm] moderator scoring position
- AlF3 27
  attached to the target pool  

framex NS3.png
Boron filter thickness d [cm]: 1.34
# Au-197
#d[cm]   kT [keV]   M-SACS [b] NS-SACS [b]  ratio M/NS
  0.01      0.047     35.458     37.405      0.948
  0.10      0.025     64.721      3.624     17.859
  0.20      0.130     18.806      2.241      8.390
  0.40      1.286      5.309      1.473      3.604
  0.50      1.741      4.195      1.260      3.330
  1.00      5.192      1.803      0.720      2.502
  1.20      6.332      1.553      0.609      2.551
  1.21      6.362      1.547      0.606      2.555
  1.30      6.820      1.469      0.563      2.609
  1.34      7.006      1.440      0.546      2.635
  1.50      7.713      1.342      0.487      2.756
  2.00      9.714      1.136      0.350      3.242
  3.00     13.439      0.907      0.194      4.671
  5.00     20.717      0.684      0.067     10.264
 10.00     37.764      0.482      0.011     43.340
evol B NS3.gif
NS3

Neutron fluence

# units:  n/cm2/pp, 1pp = 7e12 protons
#configuration      total        E < 1 keV   1 keV < E < 1 MeV   E > 1 MeV
NS3             0.20647E+09     0.51980E+08     0.12849E+09     0.25999E+08
bpe20-27        0.90498E+08     0.14469E+08     0.46192E+08     0.29837E+08
bpe30-Al-27     0.17250E+09     0.17135E+08     0.10313E+09     0.52232E+08
bpe30-AlF3-27   0.13009E+09     0.15394E+08     0.73719E+08     0.40976E+08
bpe20-30        0.38609E+11     0.84728E+10     0.28337E+11     0.17989E+10
bpe30-Al-30     0.45826E+11     0.95574E+10     0.33288E+11     0.29811E+10
bpe30-AlF3-30   0.43039E+11     0.90206E+10     0.31621E+11     0.23974E+10
bpe20-31        0.49989E+11     0.12687E+11     0.31361E+11     0.59414E+10
integrals.png
n-fluence
integrals-comp.png
n-fluence

-- AlbertoMengoni - 2020-02-24

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Topic revision: r3 - 2020-02-25 - AlbertoMengoni
 
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