Experimental (n, n’ \(\gamma\)) and (n, 2n \(\gamma\)) cross sections
Here we give the raw values from the analysis.
Talys structures
For reference, and to clarify the labelling of the transitions, here are the level scheme considered by Talys in the calculations:
182W
Discrete levels of Z= 74 N=108 (182W )
Number Energy Spin Parity Branching Ratio (%) Lifetime(sec) Assignment ENSDF
0 0.0000 0.0 + 0+
1 0.1001 2.0 + 2+
---> 0 100.0000
2 0.3294 4.0 + 4+
---> 1 100.0000
3 0.6804 6.0 + 6+
---> 2 100.0000
4 1.1358 0.0 + 0+
---> 1 100.0000
5 1.1443 8.0 + 8+
---> 3 100.0000
6 1.2214 2.0 + 2+
---> 2 0.0921
---> 1 56.3688
---> 0 43.5391
7 1.2574 2.0 + 2+
---> 4 0.2463
---> 2 22.1486
---> 1 23.0585
---> 0 54.5466
8 1.2891 2.0 - 2-
---> 7 3.1799
---> 6 71.4681
---> 2 0.4897
---> 1 22.9394
---> 0 1.9229
9 1.3311 3.0 + 3+
---> 2 15.2400
---> 1 84.7600
10 1.3738 3.0 - 3-
---> 9 1.3960
---> 8 69.5906
---> 7 1.6850
---> 6 23.9202
---> 2 0.7282
---> 1 2.0030
---> 0 0.6769
183W
Discrete levels of Z= 74 N=109 (183W )
Number Energy Spin Parity Branching Ratio (%) Lifetime(sec) Assignment ENSDF
0 0.0000 0.5 - 1/2-
1 0.0465 1.5 - 3/2-
---> 0 100.0000
2 0.0991 2.5 - 5/2-
---> 1 54.4400
---> 0 45.5600
3 0.2070 3.5 - 7/2-
---> 2 91.4500
---> 1 8.5500
4 0.2088 1.5 - 3/2-
---> 2 19.9000
---> 1 73.4800
---> 0 6.6200
5 0.2917 2.5 - 5/2-
---> 4 17.7804
---> 3 56.8111
---> 2 2.6731
---> 1 2.7451
---> 0 19.9904
6 0.3089 4.5 - 9/2-
---> 3 23.2200
---> 2 76.7800
7 0.3608 5.5 + 5.200E+00 11/2+
---> 3 100.0000
8 0.4121 3.5 - 7/2-
---> 6 17.9696
---> 5 2.6559
---> 4 6.0519
---> 3 17.6296
---> 2 48.9890
---> 1 6.7039
9 0.4531 3.5 - 7/2-
---> 8 6.3370
---> 6 7.1260
---> 5 21.3000
---> 4 10.5500
---> 3 40.4500
---> 2 13.6500
---> 1 0.5870
10 0.4754 5.5 - 11/2-
---> 6 58.1000
---> 3 41.9000
11 0.4870 6.5 + (13/2)+
---> 10 100.0000 B
12 0.5330 1.5 + J (1/2,3/2)
---> 2 50.0000 B
---> 0 50.0000 B
13 0.5511 4.5 - (9/2)-
---> 5 49.4200
---> 3 27.2200
---> 2 23.3600
14 0.5953 4.5 - (9/2)-
---> 9 98.7261
---> 6 1.2739
15 0.6228 4.5 + 9/2+
---> 7 100.0000
Inelastic reactions
Following are the results of the transitions studied in the inelastic channel.
209 keV
Listing 14 Raw result file for the experimental cross section for the 209.9 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 48.
#
# title: 183W(n, n' gamma[209.8 keV - 183L06L02])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 209.8
# energy unit: keV
# label: 183L06L02
# threshold energy: 308.0
# icc: 2.620E-01
# initial level:
# excitation energy: 308.9
# spin parity: 9/2 -
# final level:
# excitation energy: 99.1
# spin parity: 5/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 17
#
550.00 0.01553 300.00 1.5 800.00 6.5 0.00232 0.01031 0.01057
900.00 0.04959 800.00 6.5 1000.00 9.1 0.00833 0.01968 0.02137
1250.00 0.06753 1000.00 9.1 1500.00 16.8 0.00832 0.01533 0.01744
1750.00 0.08699 1500.00 16.8 2000.00 25.8 0.00963 0.01902 0.02132
2250.00 0.10214 2000.00 25.8 2500.00 36.1 0.01455 0.02068 0.02529
2750.00 0.11510 2500.00 36.1 3000.00 47.4 0.01664 0.02963 0.03398
3250.00 0.13339 3000.00 47.4 3500.00 59.8 0.01698 0.02752 0.03234
3750.00 0.13841 3500.00 59.8 4000.00 73.0 0.02237 0.03592 0.04232
4250.00 0.14762 4000.00 73.0 4500.00 87.1 0.01694 0.05019 0.05297
4750.00 0.15275 4500.00 87.1 5000.00 102.1 0.02132 0.07984 0.08264
5500.00 0.16376 5000.00 102.1 6000.00 134.2 0.01904 0.06222 0.06507
6500.00 0.15560 6000.00 134.2 7000.00 169.1 0.02016 0.04888 0.05287
7500.00 0.12720 7000.00 169.1 8000.00 206.6 0.01439 0.05432 0.05619
8500.00 0.08978 8000.00 206.6 9000.00 246.5 0.01597 0.06070 0.06277
10500.00 0.05771 9000.00 246.5 12000.00 379.5 0.01807 0.05623 0.05906
14000.00 0.03762 12000.00 379.5 16000.00 584.2 0.00613 0.09883 0.09902
20500.00 0.02702 16000.00 584.2 25000.00 1141.1 0.00826 0.09485 0.09521
# end of file: True
259 keV
Listing 15 Raw result file for the experimental cross section for the 259.5 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 50.
#
# title: 183W(n, n' gamma[259.48 keV - 183L13L05])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 259.48
# energy unit: keV
# label: 183L13L05
# threshold energy: 551.2
# icc: 1.325E-01
# initial level:
# excitation energy: 551.2
# spin parity: 9/2 -
# final level:
# excitation energy: 291.7
# spin parity: 5/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 12
#
650.00 0.00153 500.00 3.2 800.00 6.5 0.00127 0.00076 0.00148
900.00 0.00735 800.00 6.5 1000.00 9.1 0.00262 0.00131 0.00293
1250.00 0.01151 1000.00 9.1 1500.00 16.8 0.00144 0.00090 0.00170
1750.00 0.01581 1500.00 16.8 2000.00 25.8 0.00179 0.00131 0.00222
2250.00 0.01592 2000.00 25.8 2500.00 36.1 0.00199 0.00162 0.00257
2750.00 0.01875 2500.00 36.1 3000.00 47.4 0.00254 0.00228 0.00341
3250.00 0.01985 3000.00 47.4 3500.00 59.8 0.00297 0.00257 0.00393
3750.00 0.01972 3500.00 59.8 4000.00 73.0 0.00282 0.00324 0.00430
4250.00 0.02219 4000.00 73.0 4500.00 87.1 0.00297 0.00425 0.00518
4750.00 0.02168 4500.00 87.1 5000.00 102.1 0.00322 0.00423 0.00532
5500.00 0.02200 5000.00 102.1 6000.00 134.2 0.00351 0.00318 0.00474
8000.00 0.01523 6000.00 134.2 10000.00 288.7 0.00231 0.00276 0.00360
# end of file: True
268 keV
Listing 16 Raw result file for the experimental cross section for the 268.1 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 52.
#
# title: 183W(n, n' gamma[268.1 keV - 183L10L03])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 268.1
# energy unit: keV
# label: 183L10L03
# threshold energy: 475.0
# icc: 1.197E-01
# initial level:
# excitation energy: 475.1
# spin parity: 11/2 -
# final level:
# excitation energy: 207.0
# spin parity: 7/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 16
#
650.00 0.00125 500.00 3.2 800.00 6.5 0.00036 0.00053 0.00064
900.00 0.00504 800.00 6.5 1000.00 9.1 0.00153 0.00095 0.00180
1250.00 0.00909 1000.00 9.1 1500.00 16.8 0.00137 0.00083 0.00160
1750.00 0.01506 1500.00 16.8 2000.00 25.8 0.00246 0.00120 0.00274
2250.00 0.01914 2000.00 25.8 2500.00 36.1 0.00326 0.00166 0.00366
2750.00 0.02457 2500.00 36.1 3000.00 47.4 0.00334 0.00238 0.00410
3250.00 0.02644 3000.00 47.4 3500.00 59.8 0.00369 0.00296 0.00473
3750.00 0.03188 3500.00 59.8 4000.00 73.0 0.00496 0.00349 0.00606
4250.00 0.03614 4000.00 73.0 4500.00 87.1 0.00512 0.00408 0.00655
4750.00 0.03627 4500.00 87.1 5000.00 102.1 0.00553 0.00412 0.00690
5500.00 0.04236 5000.00 102.1 6000.00 134.2 0.00553 0.00364 0.00662
6500.00 0.04105 6000.00 134.2 7000.00 169.1 0.00606 0.00418 0.00736
7500.00 0.03734 7000.00 169.1 8000.00 206.6 0.00635 0.00481 0.00797
8500.00 0.02342 8000.00 206.6 9000.00 246.5 0.00540 0.00691 0.00877
12000.00 0.00987 9000.00 246.5 15000.00 530.3 0.00187 0.00587 0.00616
20000.00 0.00923 15000.00 530.3 25000.00 1141.1 0.00453 0.01305 0.01381
# end of file: True
291 keV
Listing 17 Raw result file for the experimental cross section for the 291.7 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 54.
#
# title: 183W(n, n' gamma[291.7 keV - 183L05L00])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 291.7
# energy unit: keV
# label: 183L05L00
# threshold energy: 291.7
# icc: 9.240E-02
# initial level:
# excitation energy: 291.7
# spin parity: 5/2 -
# final level:
# excitation energy: 0.0
# spin parity: 1/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 14
#
450.00 0.02377 300.00 1.5 600.00 4.2 0.00394 0.00340 0.00520
750.00 0.04488 600.00 4.2 900.00 7.8 0.00598 0.00348 0.00692
1050.00 0.05402 900.00 7.8 1200.00 12.0 0.00966 0.00328 0.01020
1350.00 0.06419 1200.00 12.0 1500.00 16.8 0.00754 0.00682 0.01017
1750.00 0.05808 1500.00 16.8 2000.00 25.8 0.01072 0.00481 0.01175
2250.00 0.05819 2000.00 25.8 2500.00 36.1 0.01005 0.00644 0.01194
2750.00 0.06040 2500.00 36.1 3000.00 47.4 0.00800 0.01065 0.01332
3500.00 0.05571 3000.00 47.4 4000.00 73.0 0.00826 0.00953 0.01261
4500.00 0.05360 4000.00 73.0 5000.00 102.1 0.01082 0.01246 0.01650
5500.00 0.05216 5000.00 102.1 6000.00 134.2 0.00702 0.01540 0.01692
6500.00 0.04723 6000.00 134.2 7000.00 169.1 0.00641 0.01916 0.02020
7500.00 0.03382 7000.00 169.1 8000.00 206.6 0.00619 0.01854 0.01955
8500.00 0.02175 8000.00 206.6 9000.00 246.5 0.00365 0.02760 0.02784
12500.00 0.01234 9000.00 246.5 16000.00 584.2 0.00306 0.02497 0.02516
# end of file: True
313 keV
Listing 18 Raw result file for the experimental cross section for the 313.0 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 56.
#
# title: 183W(n, n' gamma[313.0 keV - 183L08L02])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 313.0
# energy unit: keV
# label: 183L08L02
# threshold energy: 412.1
# icc: 1.900E-01
# initial level:
# excitation energy: 412.1
# spin parity: 7/2 -
# final level:
# excitation energy: 99.1
# spin parity: 5/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 17
#
600.00 0.02672 400.00 2.3 800.00 6.5 0.00442 0.00269 0.00517
950.00 0.07293 800.00 6.5 1100.00 10.5 0.01030 0.00485 0.01138
1300.00 0.10667 1100.00 10.5 1500.00 16.8 0.01313 0.00535 0.01418
1750.00 0.14149 1500.00 16.8 2000.00 25.8 0.01758 0.00621 0.01864
2250.00 0.14873 2000.00 25.8 2500.00 36.1 0.02193 0.00674 0.02294
2750.00 0.14967 2500.00 36.1 3000.00 47.4 0.02165 0.01148 0.02451
3250.00 0.14811 3000.00 47.4 3500.00 59.8 0.02049 0.01342 0.02449
3750.00 0.15218 3500.00 59.8 4000.00 73.0 0.01890 0.01466 0.02392
4250.00 0.15111 4000.00 73.0 4500.00 87.1 0.02046 0.01548 0.02566
4750.00 0.15122 4500.00 87.1 5000.00 102.1 0.02050 0.01627 0.02617
5500.00 0.14876 5000.00 102.1 6000.00 134.2 0.01913 0.01559 0.02468
6500.00 0.13667 6000.00 134.2 7000.00 169.1 0.01960 0.01484 0.02458
7500.00 0.09646 7000.00 169.1 8000.00 206.6 0.01511 0.02185 0.02657
8500.00 0.06595 8000.00 206.6 9000.00 246.5 0.01354 0.02488 0.02833
9500.00 0.04555 9000.00 246.5 10000.00 288.7 0.01003 0.03880 0.04008
11000.00 0.03796 10000.00 288.7 12000.00 379.5 0.00933 0.03293 0.03423
16000.00 0.02075 12000.00 379.5 20000.00 816.5 0.00506 0.03126 0.03167
# end of file: True
354 keV
Listing 19 Raw result file for the experimental cross section for the 353.9 keV \(\gamma\) ray in the \((\text{n},~\text{n}')\) reaction on 183W. As shown in Figure 58.
#
# title: 183W(n, n' gamma[353.99 keV - 183L09L02])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, INL)74-W-183,PAR,SIG,G
# transition:
# emitter: 183W
# gamma energy: 353.99
# energy unit: keV
# label: 183L09L02
# threshold energy: 453.1
# icc: 1.373E-01
# initial level:
# excitation energy: 453.1
# spin parity: 7/2 -
# final level:
# excitation energy: 99.1
# spin parity: 5/2 -
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 6
#
700.00 0.01220 400.00 2.3 1000.00 9.1 0.00395 0.00172 0.00431
1500.00 0.02088 1000.00 9.1 2000.00 25.8 0.00259 0.00184 0.00318
2500.00 0.02225 2000.00 25.8 3000.00 47.4 0.00353 0.00340 0.00490
3500.00 0.02401 3000.00 47.4 4000.00 73.0 0.00317 0.00596 0.00675
5000.00 0.02334 4000.00 73.0 6000.00 134.2 0.00365 31865.90662 31865.90662
8500.00 0.00594 6000.00 134.2 11000.00 333.0 0.00935 11139.71201 11139.71201
# end of file: True
(n, 2n) results
Then, we present the results of the transitions studied in the \((n,~2n)\) channel (in section (n, 2n) results).
229 keV
Listing 20 Raw result file for the experimental cross section for the 229 keV \(\gamma\) ray in the \((\text{n},~2\text{n})\) reaction on 183W (transition in the 182W isotope.). As shown in Figure 61.
#
# title: 183W(n, n' gamma[229.3 keV - 182L02L01])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, 2N)74-W-182,PAR,SIG,G
# transition:
# emitter: 182W
# gamma energy: 229.3
# energy unit: keV
# label: 182L02L01
# threshold energy: 6519.0
# icc: 1.960E-01
# initial level:
# excitation energy: 329.4
# spin parity: 4 +
# final level:
# excitation energy: 100.1
# spin parity: 2 +
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 9
#
6500.00 0.06613 6000.00 134.2 7000.00 169.1 0.00951 0.00910 0.01316
7500.00 0.26245 7000.00 169.1 8000.00 206.6 0.03897 0.01471 0.04165
8500.00 0.50857 8000.00 206.6 9000.00 246.5 0.08370 0.02025 0.08611
9500.00 0.58062 9000.00 246.5 10000.00 288.7 0.10228 0.03025 0.10666
11000.00 0.54425 10000.00 288.7 12000.00 379.5 0.09333 0.02709 0.09718
13000.00 0.54797 12000.00 379.5 14000.00 478.2 0.11671 0.05290 0.12814
15000.00 0.53738 14000.00 478.2 16000.00 584.2 0.13378 0.07098 0.15144
17000.00 0.42136 16000.00 584.2 18000.00 697.1 0.10629 0.08091 0.13358
21500.00 0.18390 18000.00 697.1 25000.00 1141.1 0.05323 0.05675 0.07781
# end of file: True
351 keV
Listing 21 Raw result file for the experimental cross section for the 351.0 keV \(\gamma\) ray in the \((\text{n},~2\text{n})\) reaction on 183W (transition in the 182W isotope.). As shown in Figure 63.
#
# title: 183W(n, n' gamma[350.99 keV - 182L03L02])
# date: '2024-03-18'
# author: Greg Henning
# reaction:
# proj: N
# target: 74-W-183
# code: 74-W-183(N, 2N)74-W-182,PAR,SIG,G
# transition:
# emitter: 182W
# gamma energy: 350.99
# energy unit: keV
# label: 182L03L02
# threshold energy: 6870
# icc: 5.380E-02
# initial level:
# excitation energy: 680.4
# spin parity: 6 +
# final level:
# excitation energy: 329.4
# spin parity: 4 +
# columns:
# - title: Neutron energy window, middle of range
# unit: keV
# - title: gamma cross section
# unit: barns
# - title: neutron energy window low range
# unit: keV
# - title: Uncertainty on neutron energy window low range
# unit: keV
# - title: neutron energy window high range
# unit: keV
# - title: Uncertainty on neutron energy window high range
# unit: keV
# - title: cross section parameter uncertainty
# unit: barns
# - title: cross section intrinsic uncertainty
# unit: barns
# - title: cross section total combined uncertainty
# unit: barns
# number of lines: 10
#
6500.00 0.01732 6000.00 134.2 7000.00 169.1 0.00333 0.00760 0.00830
7500.00 0.07365 7000.00 169.1 8000.00 206.6 0.01483 0.00903 0.01736
8500.00 0.22388 8000.00 206.6 9000.00 246.5 0.04237 0.01154 0.04391
9500.00 0.27151 9000.00 246.5 10000.00 288.7 0.04171 0.02036 0.04641
11000.00 0.25586 10000.00 288.7 12000.00 379.5 0.05109 0.01378 0.05292
13000.00 0.27826 12000.00 379.5 14000.00 478.2 0.05303 0.02790 0.05992
15000.00 0.30218 14000.00 478.2 16000.00 584.2 0.07153 0.04176 0.08283
17000.00 0.23749 16000.00 584.2 18000.00 697.1 0.06014 0.05102 0.07887
21500.00 0.11883 18000.00 697.1 25000.00 1141.1 0.03126 0.04149 0.05195
26500.00 0.14363 25000.00 1141.1 28000.00 1352.5 0.03652 0.14004 0.14472
# end of file: True