20.1 Introduction
20.2 Method of Calculating Sensitivity Coefficients
20.3 Sensitivity Analyses
20.3.1 Analyses Conditions
BWR | PWR | |
---|---|---|
Cladding tube | Zircaloy-2 | Zircaloy-4 |
Top end plug | SUS304 | ← |
Bottom end plug | SUS304 | ← |
Spacer | Plate: Zircaloy-2 | Zircaloy-4 or |
Spring: INCONEL alloy 718 | INCONEL alloy 718 | |
Channel box | Zircaloy-4 | – |
Specification (wt%) | Value in analysis (wt%) | |||
---|---|---|---|---|
(a) Zircaloy-2 (JIS H 4751) | ||||
H | 0.0025 | Max. | 0.0025 | |
B | 0.00005 | Max. | 0.00005 | |
C | 0.027 | Max. | 0.027 | |
N | 0.008 | Max. | 0.008 | |
Mg | 0.002 | Max. | 0.002 | |
Al | 0.0075 | Max. | 0.0075 | |
Si | 0.012 | Max. | 0.012 | |
Ca | 0.003 | Max. | 0.003 | |
Ti | 0.005 | Max. | 0.005 | |
Cr | 0.05 | – | 0.15 | 0.10 |
Mn | 0.005 | Max. | 0.005 | |
Fe | 0.07 | – | 0.20 | 0.135 |
Co | 0.002 | Max. | 0.002 | |
Ni | 0.03 | – | 0.08 | 0.055 |
Cu | 0.005 | Max. | 0.005 | |
Zr | Balance | 98.1456 | ||
Nb | 0.01 | Max. | 0.01 | |
Mo | 0.005 | Max. | 0.005 | |
Cd | 0.00005 | Max. | 0.00005 | |
Sn | 1.20 | – | 1.70 | 1.45 |
Hf | 0.01 | Max. | 0.01 | |
W | 0.01 | Max. | 0.01 | |
U | 0.00035 | Max. | 0.00035 | |
(b) Zircaloy-4 (JIS H 4751) | ||||
H | 0.0025 | Max. | 0.0025 | |
B | 0.00005 | Max. | 0.00005 | |
C | 0.027 | Max. | 0.027 | |
N | 0.008 | Max. | 0.008 | |
Mg | 0.002 | Max. | 0.002 | |
Al | 0.0075 | Max. | 0.0075 | |
Si | 0.012 | Max. | 0.012 | |
Ca | 0.003 | Max. | 0.003 | |
Ti | 0.005 | Max. | 0.005 | |
Cr | 0.07 | – | 0.13 | 0.10 |
Mn | 0.005 | Max. | 0.005 | |
Fe | 0.18 | – | 0.24 | 0.21 |
Co | 0.002 | Max. | 0.002 | |
Ni | 0.007 | Max. | 0.007 | |
Cu | 0.005 | Max. | 0.005 | |
Zr | Balance | 98.1186 | ||
Nb | 0.01 | Max. | 0.01 | |
Mo | 0.005 | Max. | 0.005 | |
Cd | 0.00005 | Max. | 0.00005 | |
Sn | 1.20 | – | 1.70 | 1.45 |
Hf | 0.01 | Max. | 0.01 | |
W | 0.01 | Max. | 0.01 | |
U | 0.00035 | Max. | 0.00035 | |
(c) SUS304 stainless steel (JIS G 4303) | ||||
C | 0.08 | Max. | 0.08 | |
Si | 1.00 | Max. | 1.00 | |
P | 0.045 | Max. | 0.05 | |
S | 0.030 | Max. | 0.03 | |
Cr | 18.00 | – | 20.00 | 19.00 |
Mn | 2.00 | Max. | 2.00 | |
Fe | Balance | 68.595 | ||
Ni | 8.00 | – | 10.50 | 9.25 |
(d) INCONEL alloy 718 (UNS N07718) | ||||
B | 0.006 | Max. | 0.006 | |
C | 0.08 | Max. | 0.08 | |
Al | 0.20 | – | 0.80 | 0.50 |
Si | 0.35 | Max. | 0.35 | |
P | 0.015 | Max. | 0.015 | |
S | 0.015 | Max. | 0.015 | |
Ti | 0.65 | – | 1.15 | 0.90 |
Cr | 17.00 | – | 21.00 | 19.00 |
Mn | 0.35 | Max. | 0.35 | |
Fe | Balance | 16.809 | ||
Co | 1.00 | Max. | 1.00 | |
Ni | 50.00 | – | 55.00 | 52.50 |
Cu | 0.3 | Max. | 0.30 | |
Nb | 4.75 | – | 5.50 | 5.125 |
Mo | 2.80 | – | 3.30 | 3.05 |
Specification in cross-section library | |
---|---|
Cladding tubes, spacers, channel boxes | BWR STEP-III, void ratio 40 % |
Top-end-plugs | BWR STEP-III, void ratio 70 % |
Bottom-end-plugs | BWR STEP-III, void ratio 0 % |
Flux intensity (1/cm2s) | |
---|---|
Center | 1.994E + 14 |
Top and bottom | 9.970E + 12 |
20.3.2 Target Nuclides of Sensitivity Analyses
No. | Nuclide | Half-life | No. | Nuclide | Half-life | No. | Nuclide | Half-life | |||
---|---|---|---|---|---|---|---|---|---|---|---|
1 | H-3 | 12.3 | years | 21 | Se-79 | 377.0 | E3 years | 41 | Cs-137 | 30.1 | years |
2 | Be-10 | 1.5 | E6 years | 22 | Rb-87 | 48.1 | E9 years | 42 | Ba-133 | 10.5 | years |
3 | C-14 | 5.7 | E3 years | 23 | Sr-90 | 28.8 | years | 43 | Sn-126 | 198.0 | E3 years |
4 | Na-22 | 2.6 | years | 24 | Nb-94 | 20.3 | E3 years | 44 | Sb-124 | 60.2 | days |
5 | Si-32 | 153.0 | years | 25 | Nb-95 | 35.0 | days | 45 | Sb-125 | 2.8 | years |
6 | S-35 | 87.5 | days | 26 | Mo-93 | 4.0 | E3 years | 46 | Ce-141 | 32.5 | days |
7 | Cl-36 | 301.0 | E3 years | 27 | Mo-99 | 2.7 | days | 47 | Ce-144 | 284.9 | days |
8 | K-40 | 1.2 | E9 years | 28 | Tc-99 | 211.1 | E3 years | 48 | Eu-152 | 13.5 | years |
9 | Sc-46 | 83.8 | days | 29 | Tc-99m | 6.0 | hours | 49 | Eu-154 | 8.6 | years |
10 | Ca-41 | 102.0 | E3 years | 30 | Zr-93 | 1.5 | E6 years | 50 | Eu-155 | 4.8 | years |
11 | Cr-51 | 27.7 | days | 31 | Zr-95 | 64.0 | days | 51 | Gd-153 | 240.4 | days |
12 | Mn-54 | 312.1 | days | 32 | Ru-103 | 39.3 | days | 52 | Ho-166m | 1.2 | E3 years |
13 | Fe-55 | 2.7 | years | 33 | Ru-106 | 1.0 | years | 53 | Hf-181 | 42.4 | days |
14 | Fe-59 | 44.5 | days | 34 | Ag-108m | 438.0 | years | 54 | Au-199 | 3.1 | days |
15 | Co-57 | 271.7 | daysc
| 35 | Ag-110m | 249.8 | days | ||||
16 | Co-58 | 70.9 | days | 36 | I-129 | 15.7 | E6 years | ||||
17 | Co-60 | 5.3 | years | 37 | Cd-113m | 14.1 | years | ||||
18 | Ni-59 | 76.0 | E3 years | 38 | I-131 | 8.0 | days | ||||
19 | Ni-63 | 100.1 | years | 39 | Cs-134 | 2.1 | years | ||||
20 | Zn-65 | 244.1 | days | 40 | Cs-135 | 2.3 | E6 years |
Nuclide | Concentration of activation products (g/t) | Concentration of fission products (g/t) | Comparison (%) | Target nuclide | |
---|---|---|---|---|---|
①Zry-2 | ②Zry-4 | ③ | ③/(①+③) | ||
(a) Zircaloy-2 and Zircaloy-4 | |||||
Zr-93 | 2.0E + 02 | 2.0E + 02 | 1.2E-03 | 0 | ○ |
Ni-59 | 3.7E + 00 | 4.7E-01 | – | – | ○ |
Ni-63 | 6.6E-01 | 8.9E-02 | – | – | ○ |
Co-60 | 5.1E-01 | 5.1E-01 | – | – | ○ |
C-14 | 4.0E-01 | 4.0E-01 | – | – | ○ |
Nb-94 | 3.0E-01 | 3.0E-01 | 3.2E-09 | 0 | ○ |
Sb-125 | 2.5E-01 | 2.5E-01 | 1.5E-06 | 0 | ○ |
Ca-41 | 3.0E-02 | 3.0E-02 | – | – | ○ |
K-40 | 2.2E-02 | 2.2E-02 | – | – | ○ |
Fe-55 | 2.1E-02 | 3.2E-02 | – | – | ○ |
Tc-99 | 9.1E-03 | 9.1E-03 | 1.7E-03 | 16 | ○ |
Mo-93 | 8.9E-03 | 8.9E-03 | 3.5E-14 | 0 | ○ |
Be-10 | 4.0E-05 | 4.0E-05 | 2.2E-08 | 0 | ○ |
Sr-90 | 2.3E-05 | 2.3E-05 | 6.0E-04 | 96 | – |
Mn-54 | 3.9E-06 | 6.1E-06 | – | – | ○ |
Ag-108m | 3.3E-07 | 3.3E-07 | 5.6E-12 | 0 | ○ |
Rb-87 | 1.1E-07 | 1.1E-07 | 3.7E-04 | 100 | – |
H-3 | 3.0E-08 | 3.0E-08 | 5.8E-08 | 66 | ○ |
I-129 | 6.4E-09 | 6.4E-09 | 3.9E-04 | 100 | – |
Zn-65 | 2.8E-09 | 2.8E-09 | – | – | ○ |
(b) SUS304 stainless steel | |||||
Nuclide | Concentration of activation products (g/t) | Concentration of fission products (g/t) | Comparison (%) | Target nuclide | |
①Bottom | ②Top | ③ | ③/(①+③) | ||
Ni-59 | 4.8E + 01 | 2.6E + 01 | – | – | ○ |
Ni-63 | 7.7E + 00 | 4.1E + 00 | – | – | ○ |
Fe-55 | 7.0E-01 | 3.9E-01 | – | – | ○ |
Co-60 | 5.3E-03 | 5.0E-03 | – | – | ○ |
Mn-54 | 9.9E-05 | 9.9E-05 | – | – | ○ |
Be-10 | 5.7E-06 | 5.7E-06 | 2.0E-10 | 0 | ○ |
C-14 | 3.2E-06 | 2.3E-06 | – | – | ○ |
Cl-36 | 1.6E-06 | 4.4E-07 | – | – | ○ |
(c) INCONEL alloy 718 | |||||
Nuclide | Concentration of activation products (g/t) | Target nuclide | |||
Ni-59 | 3.5E + 03 | ○ | |||
Ni-63 | 6.2E + 02 | ○ | |||
Co-60 | 2.6E + 02 | ○ | |||
Nb-94 | 1.6E + 02 | ○ | |||
Mo-93 | 5.4E + 00 | ○ | |||
Tc-99 | 5.4E + 00 | ○ | |||
Fe-55 | 3.4E + 00 | ○ | |||
Zr-93 | 1.3E-01 | ○ | |||
Mn-54 | 4.8E-04 | ○ | |||
Be-10 | 2.8E-04 | ○ | |||
Cl-36 | 1.7E-04 | ○ | |||
C-14 | 5.4E-05 | ○ | |||
Zn-65 | 1.7E-07 | ○ | |||
Sr-90 | 1.3E-08 | ○ | |||
Si-32 | 7.9E-09 | ○ | |||
H-3 | 1.8E-09 | ○ |
20.3.3 Results of Sensitivity Analyses
Target nuclide | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Zr-93 | Ni-59 | Ni-63 | Co-60 | C-14 | Nb-94 | Sb-125 | Ca-41 | K-40 | Fe-55 | Tc-99 | Mo-93 | Be-10 | Mn-54 | Ag-108 m | H-3 | Zn-65 | |
(a) Zircaloy-2 | |||||||||||||||||
H | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9995 | 0 |
B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0334 | 0 | 0 | 0 | 0 |
C | 0 | 0 | 0 | 0 | 5E-05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9666 | 0 | 0 | 0 | 0 |
N | 0 | 0 | 0 | 0 | 1.0000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0003 | 0 |
Mg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Al | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Si | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Ca | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0000 | 1.0000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Ti | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Mn | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0032 | 0 | 0 | 0 |
Fe | 0 | 0 | 0 | 0.0004 | 0 | 0 | 0 | 0 | 0 | 0.9564 | 0 | 0 | 0 | 0.9967 | 0 | 0 | 0 |
Co | 0 | 0 | 0 | 0.9980 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Ni | 0 | 1.0000 | 0.9904 | 0.0015 | 0 | 0 | 0 | 0 | 0 | 0.0436 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0001 |
Cu | 0 | 0 | 0.0096 | 0.0001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9999 |
Zr | 1.0000 | 0 | 0 | 0 | 0 | 0.0001 | 0 | 0 | 0 | 0 | 0.0289 | 0 | 0 | 0 | 0 | 0 | 0 |
Mo | 0 | 0 | 0 | 0 | 0 | 0.0001 | 0 | 0 | 0 | 0 | 0.9711 | 1.0000 | 0 | 0 | 0 | 0 | 0 |
Nb | 0 | 0 | 0 | 0 | 0 | 0.9998 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cd | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0000 | 0 | 0 |
Sn | 0 | 0 | 0 | 0 | 0 | 0 | 1.0000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Hf | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
W | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
(b) SUS304 stainless steel | |||||||||||||||||
Target nuclide | |||||||||||||||||
Ni-59 | Ni-63 | Fe-55 | Co-60 | Mn-54 | Be-10 | C-14 | Cl-36 | ||||||||||
C | 0 | 0 | 0 | 0 | 0 | 1.0000 | 1.0000 | 0 | |||||||||
Si | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||
P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||
S | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0000 | |||||||||
Cr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||
Mn | 0 | 0 | 0 | 0 | 0.0027 | 0 | 0 | 0 | |||||||||
Fe | 0 | 0 | 0.9890 | 0.0819 | 0.9974 | 0 | 0 | 0 | |||||||||
Ni | 1.0000 | 1.0000 | 0.0110 | 0.9181 | 0 | 0 | 0 | 0 | |||||||||
(c) INCONEL alloy 718 | |||||||||||||||||
Target nuclide | |||||||||||||||||
Ni-59 | Ni-63 | Co-60 | Nb-94 | Mo-93 | Tc-99 | Fe-55 | Zr-93 | Mn-54 | Be-10 | Cl-36 | C-14 | Zn-65 | Sr-90 | Si-32 | H-3 | ||
B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.5830 | 0 | 0 | 0 | 0 | 0 | 0 | |
C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4170 | 0 | 1.0000 | 0 | 0 | 0 | 0 | |
Al | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0012 | |
Si | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.7059 | 0.0011 | |
P | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2926 | 0.0002 | |
S | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0000 | 0 | 0 | 0 | 0.0015 | 0.0005 | |
Ti | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0007 | |
Cr | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0121 | |
Mn | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0019 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0001 | |
Fe | 0 | 0 | 0.0001 | 0 | 0 | 0 | 0.7411 | 0 | 0.9982 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0258 | |
Co | 0 | 0 | 0.9970 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0004 | |
Ni | 1.0000 | 0.9994 | 0.0028 | 0 | 0 | 0 | 0.2589 | 0 | 0 | 0 | 0 | 0 | 0.0014 | 0 | 0 | 0.9557 | |
Cu | 0 | 0.0006 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9985 | 0 | 0 | 0.0012 | |
Nb | 0 | 0 | 0 | 0.9999 | 0 | 0 | 0 | 0.9839 | 0 | 0 | 0 | 0 | 0 | 0.9841 | 0 | 0.0003 | |
Mo | 0 | 0 | 0 | 0.0001 | 1.0000 | 1.0000 | 0 | 0.0161 | 0 | 0 | 0 | 0 | 0 | 0.0159 | 0 | 0.0008 |
Target nuclide | Sensitivity coefficient of cross section | ||||||||
---|---|---|---|---|---|---|---|---|---|
First largest | Second largest | Others | |||||||
(a) Zircaloy-2 | |||||||||
Zr-93 | Zr-92 | (n, γ) | 0.98 | Zr-94 | (n, 2n) | 0.02 | |||
Ni-59 | Ni-58 | (n, γ) | 0.99 | ||||||
Ni-63 | Ni-62 | (n, γ) | 0.97 | ||||||
Co-60 | Co-59 | (n, γ)
m
| 0.46 | Co-59 | (n, γ) | 0.42 | |||
C-14 | N-14 | (n, p) | 1.00 | ||||||
Nb-94 | Nb-93 | (n, γ) | 1.00 | ||||||
Sb-125 | Sn-124 | (n, γ) | 0.56 | Sn-124 | (n, γ)
m
| 0.48 | |||
Ca-41 | Ca-40 | (n, γ) | 1.00 | ||||||
K-40 | Ca-40 | (n, p) | 1.00 | ||||||
Fe-55 | Fe-54 | (n, γ) | 0.95 | Ni-58 | (n, α) | 0.04 | |||
Tc-99 | Mo-98 | (n, γ) | 1.00 | Mo-97 | (n, γ) | 0.03 | Zr-96 | (n, γ) | 0.03 |
Mo-93 | Mo-92 | (n, γ) | 0.99 | ||||||
Be-10 | C-13 | (n, α) | 0.97 | B-10 | (n, p) | 0.03 | |||
Mn-54 | Fe-54 | (n, p) | 1.00 | ||||||
Ag-108 m | Cd-106 | (n, γ) | 1.00 | Ag-107 | (n, γ)
m
| 0.97 | |||
H-3 | H-2 | (n, γ) | 1.00 | H-1 | (n, γ) | 0.78 | He-3 | (n, p) | 0.01 |
Zn-65 | Zn-64 | (n, γ) | 1.00 | Cu-63 | (n, γ) | 1.00 | |||
(b) SUS304 stainless steel | |||||||||
Ni-59 | Ni-58 | (n, γ) | 1.00 | ||||||
Ni-63 | Ni-62 | (n, γ) | 1.00 | ||||||
Fe-55 | Fe-54 | (n, γ) | 0.99 | Ni-58 | (n, α) | 0.01 | |||
Co-60 | Ni-60 | (n, p) | 0.92 | Fe-58 | (n, γ) | 0.08 | Co-59 | (n, γ) | 0.04 |
Co-59 | (n, γ)
m
| 0.04 | |||||||
Mn-54 | Fe-54 | (n, p) | 1.00 | ||||||
Be-10 | C-13 | (n, α) | 1.00 | ||||||
C-14 | C-13 | (n, γ) | 1.00 | ||||||
Cl-36 | S-34 | (n, γ) | 1.00 | Cl-35 | (n, γ) | 1.00 | |||
(c) INCONEL alloy 718 | |||||||||
Ni-59 | Ni-58 | (n, γ) | 0.99 | ||||||
Ni-63 | Ni-62 | (n, γ) | 0.98 | ||||||
Co-60 | Co-59 | (n, γ)
m
| 0.46 | Co-59 | (n, γ) | 0.42 | |||
Nb-94 | Nb-93 | (n, γ) | 1.00 | ||||||
Mo-93 | Mo-92 | (n, γ) | 0.99 | ||||||
Tc-99 | Mo-98 | (n, γ) | 1.00 | ||||||
Fe-55 | Fe-54 | (n, γ) | 0.74 | Ni-58 | (n, α) | 0.26 | |||
Zr-93 | Nb-93 | (n, p) | 0.98 | Mo-96 | (n, α) | 0.02 | |||
Mn-54 | Fe-54 | (n, p) | 1.00 | ||||||
Be-10 | B-10 | (n, p) | 0.58 | C-13 | (n, α) | 0.42 | |||
Cl-36 | S-34 | (n, γ) | 1.00 | Cl-35 | (n, γ) | 0.97 | |||
C-14 | C-13 | (n, γ) | 1.00 | ||||||
Zn-65 | Zn-64 | (n, γ) | 0.99 | Cu-63 | (n, γ) | 0.99 | |||
Sr-90 | Zr-93 | (n, α) | 1.00 | Nb-93 | (n, p) | 0.98 | |||
Si-32 | Si-31 | (n, γ) | 1.00 | Si-30 | (n, γ) | 0.71 | P-31 | (n, p) | 0.29 |
H-3 | H-2 | (n, γ) | 1.00 | H-1 | (n, γ) | 1.00 | Ni-58 | (n, p) | 0.95 |
He-3 | (n, p) | 0.01 |
20.3.4 Sensitivity Analysis Using the Initial Composition Based on Measured Data
Element | Value based on measurement data | Value based on the standard specification |
---|---|---|
C | – | 0.08 |
N | 0.05 | – |
Si | – | 1.00 |
P | – | 0.045 |
S | 0.004 | 0.030 |
Cl | 0.001 | – |
K | 4.0E-05 | – |
Cr | – | 19.00 |
Mn | – | 2.00 |
Fe | 72 | 68.60 |
Co | 0.1 | – |
Ni | 9.25 | 9.25 |
Cu | 0.16 | – |
Zr | 0.00032 | – |
Nb | 0.02 | – |
Mo | 0.13 | – |
Th | 2.0E-07 | – |
U | 2.0E-07 | 0.0001 |
Nuclide | Concentration of activation products (g/t) |
---|---|
Ni-59 | 4.8E + 01 |
Ni-63 | 7.8E + 00 |
Co-60 | 1.7E + 00 |
Fe-55 | 7.4E-01 |
C-14 | 1.7E-01 |
Cl-36 | 5.4E-02 |
Nb-94 | 3.4E-02 |
Tc-99 | 1.2E-02 |
Mo-93 | 1.1E-02 |
K-40 | 1.8E-04 |
Mn-54 | 1.0E-04 |
Zr-93 | 6.6E-05 |
Target nuclide | Sensitivity coefficient of cross section | |||||
---|---|---|---|---|---|---|
First largest | Second largest | |||||
Ni-59 | Ni-58 | (n, γ) | 1.00 | |||
Ni-63 | Ni-62 | (n, γ) | 1.00 | |||
Fe-55 | Fe-54 | (n, γ) | 0.99 | Ni-58 | (n, α) | 0.01 |
Co-60 | Co-59 | (n, γ) | 0.46 | Co-59 | (n, γ)
m
| 0.46 |
Mn-54 | Fe-54 | (n, p) | 1.00 | |||
C-14 | N-14 | (n, p) | 1.00 | |||
Cl-36 | Cl-35 | (n, γ) | 1.00 |