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Климанов Дозиметрическое планирование лучевой 2007

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26.P. L. Petti, R. L. Siddon and B. Bjarngard, “ A multiplicative correction factor for tissue heterogeneities”, Phys. Med. Biol.,31, pp.1119-1128 (1986).

27.A. Ahnesjo, M. Saxner and A. Trepp, “A pencil beam model for photon dose calculation”, Med. Phys.,19, pp.263-273 (1992).

28.M. R. Sontag, J. R. Canningham, “ The equivalent tissue-air ratio method for making absorbed dose calculations in a heterogeneous medium”, Radiology,129, p.787 (1978).

29.W. L. Tang, F. M. Khan, B. J. Gerbi. “Validity of lung correction algorithms”, Med. Phys., 13, p.683 (1986).

30.J. R. Cunningham, “Scatter-air-ratios” Phys. Med. Biol., 7, pp.45-51 (1972).

31.H. E. Johns, J. P. Cunningham, “The physics of radiology”, 4th ed. Springfield, IL: Charles C. Tomas, 1983.

32.I. J. Das, F. M. Khan, “Backscatter dose peterbation at high atomic number interfaces in photon beams”, Med. Phys.,16, p.367 (1989).

33.S. C. Donald, B. E. Keller, P. Rubin, “Method for calculating dose when lung tissue lies in the treatment field”, Med. Phys., 3, p.210. (1976).

34.E. E. Klein et al. “Clinical implementation of a commercial multileaf collimator: dosimetry, networking, simulation, and quality assurance”. Int. J. Radiat. Oncol. Biol. Phys, 33, pp.1195-1208 (1995).

35.D. E. Velkley et al. “Buildup region of megavoltage photon radiation sources”, Med. Phys., 2, p.14 (1975).

36.J. E. Richardson, H. D. Kerman, M. Brucer, “Skin dose from cobalt 60 teletherapy unit”, Radiology, 63, p.25 (1954).

37.F. M. Khan, V. C. Moore, S. H. Levit, “Effect of various atomic number absorbers on skin dose for 10 MeV x-rays”, Radiology, 109, p.209 (1973).

38.G. J. Hine, “Secondary electron emission and effective atomic numbers”, Nucleonics, 10, p.9 (1952).

39.C. C. Burkell, T. A. Watson, H. E. Johns, R. J. Horsley, “Skin effect o cobalt 60 telecurie therapy”, Br. J. Radiol., 27, p.171 (1954).

40.W. Jackson, “Surface effects of high-energy x-rays at oblique incidence”, Br. J. Radiol., 45, p.271 (1972).

201

41.B.J.Gerbi, A.S. Meidooni, F.M. Khan, “Dose buildup for obliquely incident photon beams”, Med. Phys., 14, p.393 (1987).

42.T.J. Williamson, “A technique for matching orthogonal megavoltage fields”, Int. J. Radiat. Oncol. Biol. Phys., 5, p.111 (1975).

43.T. W. Griffin, D. Schumacher, H. C. Berry, “A technique for cranial-spinal irradiation”, Br. J. Radiol., 49, p.887 (1976).

44.S. Hopfan, “Clinical complications arising from overlapping of adjacent fields: physical and technical considerations”, Int. J. Radiat. Oncol. Biol. Phys., 2, p.801 (1977).

45.D. Dea, “Dosimetric problems with adjacent fields: verification of gap size”, Am. Assoc. Med. Dosim. J., 10, p.37 (1985).

46.D. Christopherson et al. “Field matching in radiotherapy”, Med. Phys., .3, p.369 (1984).

47.T. R. Makie, A.Bielajew, D. Roger and J. Battista, “Generation of photon energy deposition kernel using the EGS Monte Carlo code”, Phys. Med. Biol, 33, pp.1-20, (1988).

48.W. R. Nelson, H. Hirayma, D.W. Rogers, “The EGS code system”, Stanford Linear Accelerator Center, Internel Rep. SLAC 265 (1985).

49.E. N. Donskoy, V.A. Klimanov, V.V. Smirnov, V.S. Troshin, “Database of the energy deposition kernel for radiation therapy purposes”, Nuclear Data for Science and Technology, V.59, part 2, pp.1704-1708 (1997).

50.В.А. Климанов, Е.Б. Козлов, В.В. Смирнов, В.С. Трошин, “Библиотека интегральных дозовых ядер для расчета дозовых распределений в лучевой терапии”, Медицинская радиология и радиационная безопасность, т.45, №5, стр.5561 (2000).

51.A. Ahnesjo, “Collapsed cone convolution of radiant energy for photon dose calculation in heterogeneous medium”, Med. Phys.,16, 4, pp.577-591 (1989).

52.Masaaki Hirai et al., “New patient modeling for Monte Carlo radiotherapy treatment planning.” In: World congress on medical physics and biomedical engineering (Aug.27 – Sep.1, 2006 COEX Seoul, Korea), Track 11, Abstract No. 3453, p. 4573, 2006.

202

53.W. Ulmer, D. Hander, “A triple Gaussian pencil beam model for photon beam treatment planning”, Z. Med. Phys, 5, pp.25-30 (1995).

54.W. Ulmer, D. Hander, “Corrected tables of area integral I(z) for triple Gaussian pencil beam model”, Z. Med. Phys, 7, pp.192193 (1997).

55.В.А.Климанов, Е.Б.Козлов, В.В.Смирнов, В.С.Трошин, “Аппроксимационная модель тонкого луча фотонов”, в сборнике “Тезисы докладов VII Российской научной конференции” Защита от ионизирующих излучений ядерно-технических установок (23-28 сентября, Обнинск),

с.417-418 (1998).

56.A. Iwasaki, “High-energy photon primary and scatter dose calculation in water using primary collision kerma as a parameter”, Phys. Med. Biol, 34, pp.1013-1019 (1989).

57.B. Nilsson, A. Brahme, “Contamination of high-energy photon by scattered photons”, Strahlentherapie, 157, pp.181-187 (1981).

58.J.D. Bourland, E.L. Chaney, “A finite-size pencil beam model for photon dose calculations in three dimensions”, Med. Phys., 19, 6, pp.1401-1412 (1992).

59.O.Z. Ostapiak, Y. Zhu, J. Van Duk, “Refinements of the finitesize pencil beam model of three-dimensional photon dose calculation”, Med. Phys., 24, 5, pp.743-750 (1997).

60.Е.Б.Козлов, “Библиотека дозовых распределений элементарных источников для целей планирования лучевой терапии”, Диссертация к.ф.-м.н., МИФИ, Москва (2001).

61.A.R. Bleier, M.P. Carol, B.H. Curan et al, “Dose calculation for

intencity modulated radiotherapy using finite size pencil derived from standard measured data”, NOMOS corporation, PA 15143 (1998).

62.В.А. Климанов, А.В. Крянев, Г.Е. Горлачев и др. “Система оптимизации лучевой терапии пучками фотонов и электронов на основе алгоритма тонкого луча”, Технический отчет по проекту МНТЦ №1079/99 (2002).

203

Приложение

Таблица П.1*

Процентная глубинная доза для Со-60: РИП (SSD) = 80 см

Размер поля, см

OxO

4x4

5x5

6x6

7x7

8x8

9x9

10 x 10

 

 

 

 

 

 

 

 

 

PSF

1.000

1.03

1.036

1.04

1.04

1.048

1.05

1.054

 

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

100.0

100.

100.0

100.

100.

100.0

100.

100.0

1

95.6

97.2

97.5

97.7

97.8

97.9

98.0

98.1

2

87.3

91.4

92.1

92.6

93.0

93.2

93.4

93.7

3

79.9

85.4

86.3

87.0

87.6

88,0

88.4

88.7

4

73.0

79.7

80.7

81.6

82.3

82.8

83.2

83.7

5

66.7

73.9

75.2

76.2

77.1

77.8

78.3

78.8

6

61.1

68.4

69.7

70.8

71.9

72.6

73.3

73.9

7

55.8

63.3

64.7

66.0

67.0

67.9

68.6

69.3

8

51.1

58.5

59.9

61.2

62.3

63.2

64.0

64.7

9

46.8

53.9

55.5

56.8

57.9

58.8

59.7

60.5

10

42.9

49.7

51.2

52.5

53.8

54.8

55.7

56.4

11

39.3

45.9

47.4

48.7

49.8

50.7

51.6

52.5

12

36.0

42.4

43.8

45.0

46.2

47.2

48.1

48.9

13

33.0

39.1

40.4

41.6

42.8

43.8

44.7

45.6

14

30.2

36.1

37.3

38.7

39.7

40.7

41.6

42.4

15

27.7

33.2

34.5

35.7

36.7

37.6

38.5

39.4

16

25.4

30.8

31.9

33.0

34.0

35.0

35.9

36.8

17

23.3

28.3

29.5

30.5

31.5

32.5

33.3

34.1

18

21.4

26.2

27.3

28.3

29.3

30.2

30.9

31.7

19

19.6

24.1

25.1

26.1

27.1

28.0

28.8

29.5

20

18.0

22.2

23.2

24.1

25.0

25.8

26.6

27.4

22

15.2

19.0

19.9

20.7

21.5

22.3

23.0

23.7

24

12.8

16.2

17.0

17.7

18.5

19.2

19.9

 

26

10.8

13.8

14.5

15.2

15.9

16.6

17.2

17.8

28

9.1

11.8

12.5

13.1

13.8

14.4

14.9

15.4

30

7.7

10.1

10.7

11.2

11.8

12.3

12.8

13.3

________

* В табл. П.1 – П.3 целая часть числа отделяется от дробной точкой, а в табл. П.4, П.5 запятой.

204

Таблица П.1 (продолжение)

Процентная глубинная доза для Со-60: РИП (SSD) = 80 см

Размер поля, см

12 x 12

15 x 15

20 x 20

25 x 25

30 x 30

35 x35

40x40

 

 

 

 

 

 

 

 

PSF

1.060

1.068

1.078

1.085

1.089

1.093

1.096

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

100.0

100.0

100.0

100.0

100.0

100.0

100.0

 

 

 

 

 

 

 

 

1

98.2

98.3

98.3

98.4

98.5

98.5

98.6

 

 

 

 

 

 

 

 

2

93.9

94.1

94.3

94.5

94.7

94.8

94.9

 

 

 

 

 

 

 

 

3

89.1

89.5

90.1

90.3

90.5

90.6

90.7

 

 

 

 

 

 

 

 

4

84.3

84.9

85.6

86.0

86.3

86.5

86.7

 

 

 

 

 

 

 

 

5

79.5

80.3

81.3

81.7

82.1

82.4 .

82.7

 

 

 

 

 

 

 

 

6

74.9

75.9

76.9

77.5

78.1

78.4

78.7

 

 

 

 

 

 

 

 

7

70.3

71.5

72.6

73.3

73.9

74.3

74.7

 

 

 

 

 

 

 

 

8

65.8

67.1

68.6

69.5

70.1

70.5

70.9

 

 

 

 

 

 

 

 

9

61.7

63.0

64.6

65.6

66.3

66.8

67.2

 

 

 

 

 

 

 

 

10

57.7

59.2

60.8

61.9

62.6

63.2

63.7

 

 

 

 

 

 

 

 

11

53.8

55.3

57.2

58.3

59.1

59.8

60.3

 

 

 

 

 

 

 

 

12

50.3

51.9

53.7

55.0

55.8

56.5

57.0

 

 

 

 

 

 

 

 

13

47.0

48.6

50.5

51.8

52.8

53.4

54.0

 

 

 

 

 

 

 

 

14

43.7

45.4

47.4

48.7

49.8

50.5

51.1

 

 

 

 

 

 

 

 

15

40.8

42.5

44.5

45.9

46.9

47.6

48.2

 

 

 

 

 

 

 

 

16

38.1

39.7

41.8

43.2

44.2

45.0

45.7

 

 

 

 

 

 

 

 

17

35.5

37.1

39.2

40.5

41.6

42.4

43.1

 

 

 

 

 

 

 

 

18

33.1

34.7

36.7

38.1

39.2

39.9

40.6

 

 

 

 

 

 

 

 

19

30.8

32.4

34.4

35.8

36.9

37.7

38.4

 

 

 

 

 

 

 

 

20

28.7

30.2

32.2

33.5

34.7

35.5

36.2

 

 

 

 

 

 

 

 

22

25.0

26.5

28.4

29.8

30.8

31.5

32.1

24

21.7

23.1

24.9

26.2

27.3

28.1

28.7

26

18.9

20.2

21.9

23.2

24.2

24.9

25.4

28

16.4

17.7

19.3

20.6

21.5

22.1

22.6

 

 

 

 

 

 

 

 

30

14.2

15.4

17.0

18.2

19.0

19.6

19.9

 

 

 

 

 

 

 

 

205

Таблица П.1(продолжение)

Процентная глубинная доза для 6 МВ пучка: РИП (SSD) = 100 см

Размер

4

5

6

7

8

9

10

12

15

20

25

30

квадратного

поля, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NPSF

0.979

0.983

0.987

0.990

0.994

0.997

1.000

1.006

1.013

1.023

1.029

1.033

 

 

 

 

 

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

2.0

98.5

98.6

98.7

98.7

98.8

98.8

98.8

98.8

98.7

98.6

98.6

98.7

3.0

94.3

94.5

94.7

94.9

95.0

95.1

95.1

95.2

95.2

95.3

95.3

95.4

4.0

89.6

89.9

90.2

90.5

90.7

90.9

91.0

91.2

91.4

91.5

91.7

91.9

5.0

84.6

85.2

85.7

86.1

86.4

86.7

86.9

87.2

87.5

87.9

88.2

88.5

6.0

79.9

80.6

81.2

81.7

82.1

82.5

82.8

83.2

83.7

84.2

84.6

85.0

7.0

75.4

76.2

76.8

77.5

78.0

78.4

78.8

79.3

79.9

80.7

81.2

81.6

8.0

71.0

71.9

72.7

73.4

74.0

74.5

74.9

75.6

76.3

77.1

77.7

78.2

9.0

66.9

67.8

68.7

69.4

70.1

70.6

71.1

71.9

72.7

73.7

74.4

75.0

10.0

63.0

64.0

64.9

65.7

66.4

67.0

67.5

68.4

69.3

70.4

71.1

71.7

11.0

59.3

60.3

61.3

62.1

62.8

63.5

64.0

65.0

66.0

67.2

68.0

68.6

12.0

55.8

56.9

57.8

58.7

59.4

60.1

60.7

61.7

62.8

64.1

65.0

65.7

13.0

52.6

53.7

54.6

55.5

56.3

57.0

57.6

58.6

59.8

61.2

62.1

62.8

14.0

49.5

50.6

51.6

52.4

53.2

53.9

54.5

55.6

56.8

58.2

59.2

59.9

15.0

46.7

47.7

48.7

49.5

50.3

51.0

51.7

52.8

54.0

55.5

56.5

57.3

16.0

43.9

44.9

45.9

46.7

47.5

48.2

48.9

50.0

51.3

52,8

53.9

54.7

17.0

41.3

42.3

43.3

44.2

45.0

45.7

46.3

47.4

48.7

50.3

51.4

52.3

18.0

38.9

• 39.9

40.9

41.7

42.5

43.2

43.8

44.9

46.2

47.9

49.0

49.9

19.0

36.7

37.6

38.6

39.4

40.2

40.9

41.5

42.6

43.9

45.6

46.7

47.6

20.0

34.6

35.5

36.4

37.2

38.0

38.7

39.3

40.4

41.7

43.4

44.5

45.4

21.0

32.6

33.5

34.4

35.2

35.9

36.6

37.2

38.3

39.6

41.3

42.4

43.3

22.0

30.7

31.6

32.4

33.2

33.9

34.6

35.2

36.3

37.6

39.3

40.4

41.3

23.0

28.9

29.8

30.6

31.4

32.1

32.7

33.3

34.4

35.7

37.3

38.5

39.4

24.0

27.3

28.2

29.0

29.7

30.4

31.0

31.6

32.6

33.9

35.5

36.7

37.6

25.0

25.7

26.6

27.3

28.1

28.7

29.3

29.9

30.9

32.2

33.8

35.0

35.8

26.0

24.3

25.1

25.8

26.6

27.2

27.7

28.3

29.3

30.6

32.1

33.3

34.1

27.0

22.9

23.7

24.4

25.1

25.7

26.2

26.8

27.8

29.0

30.5

31.7

32.5

28.0

21.7

22.4

23.1

23.7

24.3

24.9

25.4

26.4

27.6

29.1

30.2

31.0

29.0

20.5

21.2

21.8

22.4

23.0

23.5

24.1

25.0

26.2

27.7

28.8

29.6

30.0

19.3

20.0

20.6

21.2

21.7

22.3

22.8

23.7

24.8

26.3

27.4

28:2

35.0

14.5

15.1

15.6

16.1

16.6

17.0

17.5

18.3

19.3

20.6

21.6

22.4

40.0

10.9

11.3

11.8

12.2

12.6

13.0

13.4

14.1

15.0

16.1

17.1

17,8

206

Таблица П. 1 (продолжение)

Процентная глубинная доза для 18 МВ пучка: РИП (SSD) = 100 см

Размер

4

5

6

7

8

9

10

12

15

20

25

30

квадратного

поля, см

 

 

 

 

 

 

 

 

 

 

 

 

NPSF

0.979

0.983

0.987

0.990

0.994

0.997

1.000

1.006

1.013

1.023

1.029

1.033

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.2

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

100.0

4.0

99.2

99.3

99.2

99.1

99.0

98.9

98.8

98.6

98.3

98.0

97.8

97.7

5.0

96.4

96.6

96.6

96.6

96.5

96.4

96.2

95.9

95.5

94.9

94.7

94.6

6.0

92.8

93.1

93.2

93.2

93.1

93.0

92.8

92.5 .

92.1

91.6

91.4

91.3

7.0

89.0

89.3

89.4

89.5

89.5

89.4

89.3

89.1

88.7

88.3

88.1

88.1

8.0

85.1

85.5

85.7

85.8

85.8

85.8

85.8

85.6

85.4

85.0

84.9

84.9

9.0

81.3

81.8

82.1

82.2

82.3

82.3

82.3

82.2

82.0

81.8

81.7

81.8

10.0

77.7

78.3

78.6

78.8

78.9

79.0

79.0

79.0

78.9

78.8

78.8

78.9

11.0

74.2

74.8

75.1

75.3

75.5

75.6

75.7

75.8

75.8

75.7

75.8

76.0

12.0

71.0

71.5

71.9

72.2

72.4

72.6

72.7

72.8

72.9

73.0

73.1

73.3

13.0

67.9

68.4

68.8

69.1

69.4

69.6

69.7

69.9

70.0

70.2

70.4

70.6

14.0

64.8

65.4

65.8

66.1

66.4

66.6

66.8

67.0

67.2

67.5

67.7

68.0

15.0

61.9

62.5

62.9

63.3

63.6

63.9

64.1

64.4

64.6

64.9

65.2

65.5

16.0

59.1

59.7

60.2

60.6

60.9

61.2

61.4

61.7

62.0

62.4

62.7

63.0

17.0

56.6

57.2

57.7

58.1

58.4

58.7

58.9

59.3

59.6

60.0

60.4

60.7

18.0

54.1

54.7

55.2

55.6

55.9

56.2

56.5

56.9

57.3

57.7

58.1

58.5

19.0

51.8

52.4

52.9

53.3

53.6

53.9

54.2

54.6

55.0

55.5

55.9

56.3

20.0

49.6

50.2

50.7

51.1

51.4

51.7

52.0

52.4

52.8

53.4

53.9

54.3

21.0

47.5

48.1

48.6

49.0

49.3

49.6

49.9

50.3

50.8

51.4

51.9

52.3

22.0

45.4

46.0

46.5

46.9

47.2

47.5

47.8

48.3

48.8

49.4

49.9

50.3

23.0

43.4

44.0

44.5

45.0

45.3

45.6

45.9

46.4

46.9

47.6

48.1

48.5

24.0

41.6

42.2

42.7

43.1

43.4

43.7

44.0

44.5

45.0

45.7

46.2

46.6

25.0

39.8

40.4

40.9

41.3

41.6

41.9

42.2

42.7

43.3

44.0

44.5

44.9

26.0.

38.2

38.7

39.2

39.6

39.9

40.2

40.5

41.0

41.6

42.3

42.8

43.2

27.0

36.6

37.1

37.6

38.0

38.3

38.6

38.9

39.4

40.0

40.7

41.2

41.6

28.0

35.0

35.5

36.0

36.4

36.7

37.0

37.3

37.8

38.4

39.1

39.6

40.0

29.0

33.5

34.0

34.5

34.9

35.2

35.5

35.8

36.3

36.9

37.6

38.1

38.5

30.0

32.1

32.6

33.1

33.5

33.8

34.1

34.4

34.9

35.5

36.2

36.7

37.1

35.0

25.9

26.4

26.8

27.2

27.5

27.8

28.1

28.6

29.2

29.9

30.4

30.8

40.0

21.0

21.4

21.8

22.2

22.5

22.8

23.0

23.5

24.1

24.8

25.3

25.6

207

Таблица П.2

Отношение ткань воздух (ОТВ или TAR) для 60Со

Размер

0

4x4

5x5

6x6

7x7

8x8

9x9

10 x 10

12 x12

квадратного

поля, см

 

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

1.000

1.03

1.036

1.040

1.043

1.048

1.05

1.054

1.060

 

 

 

 

 

 

 

 

 

 

1

0.968

1.01

1.022

1.029

1.034

1.039

1.04

1.048

1.054

 

 

 

 

 

 

 

 

 

 

2

0.906

0.97

0.989

0.999

1.006

1.012

1.01

1.023

1.031

3

0.849

0.93

0.949

0.961

0.970

0.978

0.98

0.992

1.002

4

0.795

0.89

0.908

0.921

0.931

0.942

0;95

0.957

0.970

 

 

 

 

 

 

 

 

 

 

5

0.744

0.84

0.864

0.880

0.892

0.904

0.91

0.921

0.936

6

0.697

0.80

0.819

0.835

0.850

0.862

0.87

0.884

0.900

7

0.652

0.75

0.777

0.794

0.809

0.823

0.83

0.845

0.863

8

0,611

0.71

0.734

0.751

0.768

0.782

0.79

0.805

0.825

9

0.572

0.67

0.692

0.712

0.728

0.742

0.75

0.769

0.789

10

0.536

0.63

0.654

0.671

0.688

0.704

0.71

0.731

0.751

11

0.502

0.59

0.615

0.634

0.651

0.666

0.67

0.692

0.715

12

0.470

0.56

0.580

0.598

0.614

0.629

0.64

0.658

0.680

13

0.440

0.52

0.546

0.563

0.579

0.595

0,60

0.623

0.646

 

 

 

 

 

 

 

 

 

 

14

0.412

0.49

0.514

0.530

0.549

0.563

0.57

0.589

0.613

15

0.386

0.46

0.483

0.500

0.516

0.529

0.54

0.557

0.581

16

0.361

0.43

0.456

0.471

0.486

0.500

0.51

0.527.

0.552

 

 

 

 

 

 

 

 

 

 

17

0.338

0.41

0.428

0.444

0.458

0.471

0.48

0.499

0.521

 

 

 

 

 

 

 

 

 

 

18

0.317

0.38

0.402

0.417

0.433

0.447

0.45

0.471

0.494

19

0.297

0.36

0.377

0.392

0.406

0.419

0.43

0.446

0.467

20

0.278

0.34

0.354

0.369

0.382

0.394

0.40

0.418

0.441

 

 

 

 

 

 

 

 

 

 

22

0.244

0.30

0.314

0.327

0.339

0.350

0.36

0.374

0.395

24

0.214

0.26

0.277

0.289

0.300

0.310

0.32

0.332

0.352

26

0.187

0.23

0.243

0.255

0.266

0.275

0.28

0.296

0.315

28

0.164

0.20

0.216

0.226

0.235

0.244

0.25

0.265

0.281

 

 

 

 

 

 

 

 

 

 

30

0.144

0.18

0.190

0.200

0.209

0.217

0.22

0.233

0.249

208

Таблица П.2 (продолжение)

Отношение ткань воздух (ОТВ или TAR) для 60Со

Размер

 

 

 

 

 

 

 

 

 

квадратного

15 x 15

20x20

25 x 25

30 x 30

35 x 35

40x40

50 x 50

60x60

75 x 75

поля, см

 

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5

1.068

1.078

1.085

1.089

1.093

1.096

1.099

1.102

1.104

 

 

 

 

 

 

 

 

 

 

1

1.063

1.073

1.081'

1.086

1.090

1.095

1.102

1.109

1.113

 

 

 

 

 

 

 

 

 

 

2

'1.042

1.055

1.064

1.070

1.075

1.079

1.086

1.093

1.096

 

 

 

 

 

 

 

 

 

 

3

1.014

1.031

1.040

1.048

1.053

1.057

1.066

1.074

1.079

4

0.984

1.003

1.014

1.022

1.028

1.035

1.043

1.054

1.060

 

 

 

 

 

 

 

 

 

 

5

0.953

0.974

0.986

0.996

1.002

1.008

1.020

1.029

1.036

 

 

 

 

 

 

 

 

 

 

6

0.920

0.942

0.957

0.967

0.975

0.981

0.993

1.004

1.011

 

 

 

 

 

 

 

 

 

 

7

0.886

0.909

0.924

0.937

0.945

0.952

0.965

0.976

0.981

8

0.849

0.876

0.895

0.908

0.916

0.923

0.939

0.950

0.956

 

 

 

 

 

 

 

 

 

 

9

0.813

0.843

0.862

0.876

0.887

0.895

0.909

0.921

0.928

 

 

 

 

 

 

 

 

 

 

10

0.779 .

0.809

0.831

0.845

0.856

0.865

0.882

0.892

0.900

11

0.742

0.776

0.798

0.814

0.826

0.836

0.852

0.864

0.873

 

 

 

 

 

 

 

 

 

 

12

0.709

0.743

0.767

0.784

0.796

0.806

0.825

0.836

0.845

 

 

 

 

 

 

 

 

 

 

13

0.675

0.712

0.736

0.754

0.769

0.779

0.797

0.809

0.819

 

 

 

 

 

 

 

 

 

 

14

0.641

0.680

0.705

0.724

0.739

0.750

0.770

0.781

0.788

15

0.611

0.649

0.676

0.695

0.711

0.723

0.742

0.753

0.762

 

 

 

 

 

 

 

 

 

 

16

0.581

0.620

0.647

0.667

0.683

0.696

0.717

0.727

0.732

 

 

 

 

 

 

 

 

 

 

17

0.552

0.590

0.618

0.638

0.656

0.669

0.690

0.700

0.707

 

 

 

 

 

 

 

 

 

 

18

0.523

0.563

0.590

0.611

0.629

0.641

0.663

0.673

0.680

19

0.497

0.535

0.563

0.585

0.603

0.617

0.638

0.651

0.655

 

 

 

 

 

 

 

 

 

 

20

0.470

0.509

0.536

0.558

0.576 '

0.590

0.613

0.624

0.632

22

0.423

0.461

0.490

0.512

0.531

0.545

0.564

0.577

0.587

 

 

 

 

 

 

 

 

 

 

24

0.380

0.416

0.445

0.466

0.486

0.501

0.522

0.534

0.543

 

 

 

 

 

 

 

 

 

 

26

0.341

0.377

0.403

0.425

0.444

0.459

0.480

0.492

0.499

28

0.304

0.340

0.366

0.389

0.407

0.421

0.442

0.453

0.459

 

 

 

 

 

 

 

 

 

 

30

0.273

0.305

0.332

0.353

0372 '

0.385

0.403

0.413

0.422

209

Таблица П.3

Отношение ткань-максимум (ОТМ или TMR) для 6 МВ пучка

Размер

4

5

6

7

8

9

10

12

15

20

25

30

квадратного

поля, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Глубина, см

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

1.000

2.0

0.995

0.996

0.997

0.997

0.997

0.998

0.998

0.998

0.997

0.996

0.996

0.997

3.0

0.971

0.973

0.974

0.977

0.978

0.979

0.979

0.980

0.980

0.981

0.981

0.982

4.0

0.940

0.943

0.946

0.949

0.951

0.953

0.954

0.956

0.958

0.960

0.962

0.964

5.0

0.904

0.910

0.915

0.919

0.922

0.926

0.928

0.931

0.935

0.939

0.942

0.945

6.0

0.869

0.876

0.882

0.888

0.892

0.897

0.900

0.905

0.910

0.916

0.920

0.925

7.0

0.835

0.843

0.850

0.857

0.863

0.867

0.871

0.877

0.884

0.893

0.899

0.904

8.0

0.800

0.810

0.818

0.826

0.832

0.838

0.843

0.851

0.860

0.869

0.876

0.882

9.0

0.767

0.777

0.786

0.795

0.801

0.808

0.814

0.823

0.833

0.844

0.853

0.860

10.0

0.735

0.745

0.755

0.765

0.772

0.779

0.786

0.796

0.808

0.820

0.830

0.837

11.0

0.703

0.714

0.725

0.735

0.742

0.750

0.758

0.768

0.781

0.795

0.807

0.815

12.0

0.672

0.684

0.695

0.706

0.714

0.722

0.729

0.741

0.755

0.772

0.784

0.793

13.0

0.644

0.656

0.667

0.677

0.686

0.696

0.703

0.715

0.730.

0.748

0.761

0.771

14.0

0.616

0.629

0.640

0.651

0.659

0.668

0.676

0.689

0.705

0.723

0.737

0.747

15.0

0.591

0.603

0.614

0.624

0.633

0.642

0.650

0.664

0.681

0.701

0.715

0.726

16.0

0.565

0.576

0.587

0.598

0.607

0.616

0.624

0.638

0.656

0.677

0.692

0.704

17.0

0.540

0.551

0.562

0.574

0.583

0.592

0.601

0.614

0.632

0.653

0.670

0.682

18.0

0.516

0.527

0.539

0.550

0.559

0.568

0.577

0.590

0.608

0.630

0.648

0.661

19.0

0.495

0.505

0.516

0.527

0.536

0.545

0.554

0.568

0.586

0.608

0.627

0.640

20.0

0.474

0.484

0.494

0.505

0.514

0.523

0.532

0.546

0.565

0.587

0.606

0.620

21.0

0.453

0.463

0.474

0.484

0.493

0.502

0.510

0.525

0.544

0.567

0.586

0.600

22.0

0.433

0.443

0.454

0.463

0.472

0.481

0.489

0.504

0.523

0.547

0.567

0.580

23.0

0.413

0.424

0.434

0.444

0.453

0.462

0.470

0.484

0.503

0.527

0.546

0.561

24.0

0.396

0.407

0.417

0.427

0.435

0.444

0.452

0.466

0.484

0.508

0.528

0.543

25.0

0.378

0.389

0.399

0.408

0.417

0.425

0.433

0.447

0.466

0.490

0.510

0.525

26.0

0.363

0.373

0.382

0.391

0.400

0.408

0.416

0.429

0.448

0.472

0.492

0.506

27.0

0.346

0.356

0.366

0.375

0.383

0.391

0.399

0.412

0.430

0.454

0.474

0.489

28.0

0.334

0.342

0.351

0.360

0.367

0.375

0.383

0.396

0.415

0.439

0.458

0:473

29.0

0.319

0.327

0.337

0.345

0.352

0.359

0.367

0.380

0.398

0.423

0.442

0.457

30.0

0.305

0.313

0.322

0.330

0.338

0.345

0.352

0.365

0.382

0.406

0.425

0.441

35.0

0.244

0.252

0.260

0.267

0.273

0.280

0.286

0.298

0.314

0.337

0.356

0.371

40.0

0.196

0.202

0.208

0.214

0.220

0.226

0.231

0.242

0.257

0.278

0.294

0.309

210

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