|
Учебное пособие по курсу Ядерная безопасность для студентов, обучающихся по направлению Ядерная энергетика и теплофизика
5.2. Толщина защиты из бетона (=2.3 г/см3) для различной кратности ослабления k -излучения (широкий пучок).
Кратность ослабления k
|
Толщина защиты (см) при энергии -излучения, МэВ
|
0.1
|
0.2
|
0.3
|
0.4
|
0.5
|
0.6
|
0.7
|
0.8
|
0.9
|
1.0
|
1.25
|
1.5
|
1.75
|
2.0
|
2.2
|
3.0
|
4.0
|
6.0
|
8.0
|
10
|
1.5
|
2.6
|
4.7
|
6.3
|
7.5
|
8.2
|
8.2
|
8.2
|
8.3
|
8.3
|
8.5
|
8.6
|
8.7
|
8.7
|
8.8
|
8.9
|
9.4
|
10.0
|
11.7
|
11.7
|
11.7
|
2
|
4.7
|
7.6
|
9.9
|
11.3
|
12.3
|
12.4
|
12.4
|
12.6
|
12.7
|
12.9
|
13.3
|
13.6
|
13.8
|
14.1
|
14.3
|
15.3
|
16.4
|
18.8
|
18.8
|
18.8
|
5
|
5.6
|
11.0
|
15.5
|
18.8
|
21.1
|
21.8
|
22.3
|
22.6
|
23.0
|
23.5
|
24.6
|
25.8
|
27.0
|
28.2
|
29.4
|
32.9
|
35.2
|
38.7
|
39.3
|
39.9
|
8
|
7.0
|
12.9
|
17.8
|
22.0
|
24.6
|
25.6
|
26.4
|
27.2
|
27.9
|
28.8
|
30.5
|
32.2
|
33.8
|
35.2
|
36.4
|
39.9
|
43.4
|
48.1
|
48.7
|
49.3
|
10
|
8.2
|
14.6
|
19.7
|
23.7
|
25.8
|
26.8
|
27.6
|
28.4
|
29.1
|
29.9
|
31.9
|
34.0
|
35.9
|
37.6
|
39.0
|
43.4
|
47.5
|
51.6
|
52.8
|
54.0
|
20
|
8.2
|
15.3
|
21.4
|
25.8
|
29.9
|
31.9
|
33.6
|
35.0
|
36.2
|
37.0
|
39.9
|
42.5
|
44.8
|
47.0
|
48.6
|
54.0
|
58.7
|
64.6
|
65.7
|
69.3
|
30
|
8.5
|
16.4
|
22.8
|
27.7
|
32.9
|
34.8
|
36.4
|
37.8
|
39.2
|
40.5
|
43.7
|
46.5
|
49.3
|
51.6
|
53.5
|
59.9
|
65.7
|
71.6
|
72.8
|
78.1
|
40
|
8.5
|
17.6
|
24.2
|
29.6
|
34.0
|
36.2
|
37.9
|
39.6
|
41.3
|
42.8
|
45.3
|
49.8
|
52.8
|
55.2
|
57.3
|
64.0
|
69.8
|
77.5
|
79.2
|
84.5
|
50
|
9.9
|
18.8
|
25.1
|
30.8
|
35.0
|
37.6
|
39.4
|
41.2
|
42.8
|
44.6
|
48.5
|
52.1
|
55.2
|
58.1
|
60.1
|
66.9
|
72.8
|
81.6
|
83.9
|
89.8
|
60
|
11.0
|
20.0
|
26.1
|
31.7
|
36.4
|
38.5
|
40.5
|
42.5
|
44.1
|
45.8
|
50.1
|
54.0
|
57.5
|
60.5
|
62.7
|
69.8
|
74.0
|
85.1
|
88.0
|
93.9
|
80
|
11.5
|
20.4
|
27.7
|
33.6
|
38.7
|
41.1
|
43.0
|
44.8
|
46.5
|
48.1
|
52.4
|
56.4
|
59.9
|
63.4
|
65.7
|
74.0
|
81.0
|
90.4
|
93.9
|
100.4
|
102
|
11.5
|
21.1
|
28.9
|
35.2
|
39.9
|
43.0
|
45.3
|
47.2
|
48.8
|
50.5
|
54.5
|
58.3
|
62.2
|
65.7
|
68.6
|
77.5
|
84.5
|
95.1
|
98.0
|
105.1
|
2102
|
12.7
|
23.5
|
32.4
|
39.2
|
44.6
|
47.9
|
50.5
|
52.6
|
54.6
|
56.4
|
60.8
|
65.3
|
69.7
|
74.0
|
77.2
|
88.0
|
95.7
|
108.0
|
112.1
|
120.9
|
5102
|
13.8
|
24.6
|
35.2
|
43.9
|
50.5
|
54.5
|
57.3
|
58.8
|
62.5
|
64.6
|
69.8
|
74.8
|
79.8
|
84.5
|
88.5
|
101.0
|
110.4
|
124.4
|
129.7
|
139.7
|
103
|
15.5
|
28.2
|
39.2
|
48.1
|
55.2
|
59.2
|
62.5
|
65.3
|
67.8
|
70.4
|
76.1
|
81.7
|
87.6
|
92.7
|
97.0
|
110.9
|
120.9
|
137.9
|
143.2
|
155.0
|
2103
|
17.6
|
30.5
|
42.3
|
52.4
|
59.9
|
64.1
|
67.4
|
70.4
|
73.2
|
75.7
|
82.2
|
88.5
|
94.6
|
100.4
|
104.0
|
120.9
|
132.1
|
150.3
|
156.1
|
168.5
|
5103
|
18.8
|
33.1
|
45.6
|
56.4
|
65.7
|
70.0
|
74.0
|
77.0
|
80.2
|
82.8
|
90.2
|
97.4
|
104.2
|
110.9
|
115.5
|
132.7
|
146.8
|
166.7
|
173.8
|
186.7
|
104
|
18.8
|
35.2
|
48.5
|
60.3
|
69.3
|
74.7
|
79.1
|
82.9
|
86.2
|
89.2
|
97.2
|
104.5
|
111.5
|
118.6
|
124.7
|
143.2
|
156.7
|
179.0
|
187.8
|
201.3
|
2104
|
21.1
|
38.4
|
51.9
|
63.4
|
72.8
|
78.2
|
83.1
|
87.3
|
91.1
|
94.5
|
102.7
|
110.8
|
118.6
|
126.2
|
131.7
|
152.6
|
167.3
|
190.8
|
201.9
|
216.0
|
5104
|
23.3
|
42.3
|
56.4
|
68.6
|
78.1
|
83.4
|
88.7
|
93.4
|
97.9
|
102.1
|
111.5
|
120.4
|
128.4
|
136.2
|
142.0
|
164.9
|
181.4
|
206.6
|
218.4
|
233.6
|
105
|
30.5
|
50.5
|
64.6
|
75.1
|
82.8
|
88.3
|
93.5
|
98.1
|
102.5
|
106.8
|
116.9
|
126.6
|
135.7
|
144.4
|
150.7
|
173.8
|
191.4
|
218.4
|
231.3
|
248.9
|
2105
|
38.3
|
56.7
|
69.8
|
79.4
|
86.9
|
92.4
|
97.7
|
102.8
|
108.0
|
112.7
|
125.1
|
135.6
|
145.1
|
153.8
|
160.2
|
177.3
|
201.9
|
231.3
|
245.5
|
263.0
|
5105
|
44.8
|
61.5
|
73.7
|
83.7
|
91.6
|
98.1
|
103.9
|
109.5
|
114.8
|
119.7
|
133.8
|
142.5
|
152.6
|
162.0
|
169.2
|
196.0
|
214.8
|
247.1
|
261.8
|
281.2
|
106
|
49.3
|
66.4
|
79.8
|
89.8
|
97.4
|
103.7
|
109.2
|
114.1
|
119.5
|
124.4
|
140.2
|
149.8
|
160.6
|
171.4
|
178.6
|
205.4
|
225.4
|
260.6
|
274.7
|
295.8
|
2106
|
67.6
|
73.1
|
84.5
|
93.3
|
101.0
|
107.4
|
113.6
|
119.7
|
125.6
|
131.5
|
148.4
|
157.8
|
169.2
|
179.6
|
187.2
|
213.7
|
237.1
|
272.4
|
287.6
|
308.8
|
5106
|
59.4
|
79.7
|
91.6
|
100.6
|
108.0
|
141.1
|
120.2
|
126.0
|
133.7
|
133.8
|
154.7
|
165.8
|
178.0
|
189.0
|
197.8
|
227.8
|
250.1
|
287.6
|
302.6
|
327.5
|
107
|
64.0
|
84.9
|
95.7
|
130.7
|
110.3
|
117.4
|
123.6
|
130.0
|
136.2
|
142.0
|
160.0
|
170.8
|
183.6
|
194.9
|
203.4
|
236.0
|
259.4
|
299.4
|
314.6
|
340.5
| |
|
|
Скачать 5.76 Mb.