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  • radioactivityradiation

    dioactivi

    diation

    CoSTEP

    i

    2011 3 11

    9.0

    4

    CoSTEP

  • ii

    Twitter Facebook

    Twit-

    ter

    iii

    2011 4 18

    CoSTEP

    http://costep.hucc.hokudai.ac.jp/ebooks/ft/flipper_twitter.htm
  • v

    i

    1 1

    1.1 . . . . . . . . . 1

    1.2 . . . . . . . . . . . . . . . 2

    1.3 . . . . . . . . . . . 5

    1.4 . . . . . . . . . . . . . . . 7

    1.5 . . . . . . . . . . . . 10

    1.6 . . . . . . 14

    1.7 . . . . . . . . . . . . . . . . 16

    1.8 . . 18

    1.9 . . . . . . . . . . . . . . . . 20

    2 23

    2.1 . . . . . . . . . . . . . . 23

    2.2 . . . . . . . . . . . 25

  • vi

    2.3 . . . . . . . . . . . . . . . . . 26

    2.4 . . . . . . . . . 28

    2.5 . . . . . . . . . . . . 30

    2.6 . . . . . . . . 31

    2.7 . . . . . . 32

    2.8 . . . . . 33

    2.9

    . . . . . . . . . . . . . . . . . . 35

    2.10 . . . . . . . . . . . . . . . . 38

    2.11 . . . . . . . . . . . . 40

    43

    45

    47

    49

    50

    53

    1

    1

    1.1

    4 12

    37 63

    7

    8

    1,000,000,000,000 1

  • 2 1

    1.2

    180cc 180g

    H2O

    180cc

    5

    1. 1000

    2. 1

    3. 0.001 =1

    1000

    4. 0.000001 =1

    1, 000, 000

    1.2 3

    5. 0.000000001 =1

    1, 000, 000, 000

    0.001 3.

    0.001 1000 1

    1

    4. 0.000001 5.

    0.000000001 1,000,000 1

    1,000,000,000 1

    1000 1000

    1 1000

    0.001 =1

    0.001

    0.000001 100 1

    0.000001 =1

    0.000001

    0.000000001 10 1

    0.000000001 =1

  • 4 1

    1.1 iPod nano

    1.1 1

    1000

    0.001

    0.000001

    0.000000001

    1.3 5

    1.3

    235

    238

    235 131

    radioactivity

    1

    1903

    18521908

    131 1 =

    0.000001 1 46 131

    1 131

    46

  • 6 1

    1.2

    Wikipedia

    131 92

    131 2 2

    131

    137 1

    320 131 46

    1

    1.4 7

    1.4

    46 131

    46 1

    46

    4 5

    4 7

    2

    1cc

    1cc

    5 6

    1cc

    1.6 20

    1

  • 8 1

    1.3

    1000

    1000 2

    1cc

    20 20000cc 1000

    *1

    20

    1 1000

    *1 500 500 /cc

    20000 cc = 100020 = 20000cc

    1.4 9

    100

    1 500

    570

    101 510

    *2

    1 5000

    1kg

    10 570 1/100 5.7

    *2

  • 10 1

    2 1/4 3 1/9

    1.5

    1.5 11

    1kg

    J/kg *3

    J

    1J = 0.24

    Gy

    1Gy = 1 J/kg

    100W

    W 1

    J/s

    *3 131 137

  • 12 1

    W Gy

    1905 1965 )

    1

    Gy/h

    h hour *4

    Gy/h 1

    *4

    1

    km/h

    Gy/h

    1.5 13

    1 1 250

    250 / 250Gy/h

    1kg 1 250J

    4 6 2

    30 250 /

    250

    1kg 1 250 250

    0.000 000 001

  • 14 1

    1.6

    1.4 2011 3 20

    4 9

    2

    2

    0 1 0.1

    /

    1 0.000 001 100

    1

    100

    1.6 15

    1.4 2011 3 20 4 9

    1

  • 16 1

    10km 20km 30km

    1.5

    1.7

    1.5 2008 4 3 1

    1.7 17

    1.5

    /

    45 50 /

    *5

    *5

  • 18 1

    1.8

    20

    12 4

    1kg

    20 20

    1.8 19

    Gy J/kg

    Sv *6

    18961966

    1

    1

    Sv/h

    *6

  • 20 1

    1.9

    20

    1.6

    1.6

    1.9 21

  • 23

    2

    2.1

    2.1

    7 10

  • 24 2

    100% 3 5

    50%

    3 24

    2

    3

    2.1

    2.2 25

    2.1 *1

    2.2

    ICRP *2

    ICRP

    1

    5%

    *1

    ICRP

    *2 ICRP International Commission on Radiological Pro-

    tection

  • 26 2

    2.2

    2011

    100

    0.5%

    30%

    1000 300

    1000 100

    5 1000

    0.5% 305

    2.3

    ICRP

    2.3 27

    1 50 5100

    1 1

    1

    1 20100

    1 1 20

    20

  • 28 2

    2.4

    1

    1.4

    2011 4 9

    0.157 /

    *3 1

    0.157 / 24/ 365 = 1375.32

    1 1.38

    *3 1.8 18

    1

    2.4 29

    45 50 /

    45 / 45

    / 1 45

    / 24 / 365 / = 394200/ 0.39

    1.38 0.39

    1 0.99

    1 1

    2011 4 9 1.4

    1

    *4

    *4

  • 30 2

    2.5

    3 1.4

    10

    8 4

    1

    2.6 31

    2.6

    1 1

    *5

    3

    *5

  • 32 2

    2.7

    1.7 16

    40

    2.8 33

    1kg 2g

    0.0117% 1 1

    1 170

    0.01%

    1 1

    1

    1.4

    2.8

  • 34 2

    2.3

    , 1991 p.105

    2.9 35

    2.9

    2011 3 19

    1kg 2000 6100

    15020 /kg 131

    131

    *6

    *6

  • 36 2

    131

    1 15020 1 50

    1

    0.0165

    1

    60

    1

    2000 /kg 50

    450 1

    20 30

    *7

    70 90% 10

    30%

    *7

    1

    2.9 37

    2 20g

  • 38 2

    2.10

    2.4

    8 16 1/4 24

    1/8 3 1/2000

    2.10 39

    131

    1.4 9

    10

    100

    134 137

    134 2

    137 30 60 1/4

    3 16

    17 30

    90 3.3 32 /kg

    90 29

  • 40 2

    3

    6

    239 2 4000

    2.11

    1 40

    90

    ICRP 2007

    2.11 41

    1.2 2

    1000

    1

    7.61021 7.6102122

    1 H2O

    6 10241000

  • 43

    2.9 36 0.0165

    1.8 18

    *8

    131

    2.2 108131

    15020 /kg 50g 1

    15020 /kg 0.05 kg 2.2 108 / =1.65 105

    *8

  • 44

    0.0165

    131

    45

    S D

    V 0.7 S D 0.77

    S R 4R2

    1 v 180 cc =180

    cm3

    18 1 180g

  • 46

    6 1023 18018

    = 6 1024

    6 1024 vV

    47

    http://atmc.jp/

    SPEEDI

    http://www.nsc.go.jp/mext_speedi/

    1

    http://www.kankyo-hoshano.

    http://atmc.jp/http://www.nsc.go.jp/mext_speedi/http://www.kankyo-hoshano.go.jp/
  • 48

    go.jp/

    http://www.sss.fukushima-u.

    ac.jp/FURAD/FURAD/data-map.html

    4 9

    http://www.geosociety.

    jp/hazard/content0058.html

    Overlays

    49

    [1]

    1 Ver1.0 http://www.nirs.

    go.jp/ 2011

    [2]

    2000

    [3] ICRP 1990

    1991

    [4]

    1984

    [5] http://www.

    kankyo-hoshano.go.jp/

    [6] http://atmc.jp/

    http://www.sss.fukushima-u.ac.jp/FURAD/FURAD/data-map.htmlhttp://www.geosociety.jp/hazard/content0058.html
  • 50

    ICRP, 25, 26, 40, 18, 28, 43

    , 10, 18, 20, 21, 40, 23, 25, 17, 33

    , 23, 25, 24, 25

    , 15, 16, 33, 40

    , 31, 32, 31

    , 2426, 10, 18, 20

    , 11, 18, 19, 43, 12, 19, 27

    , 28, 13, 14, 28, 29

    , 16, 17, 27

    , 44, 36, 37, 44

    , 35, 17, 27, 29, 32, 33

    , 19, 27, 28, 43, 19, 17

    , 28, 2629, 31

    , 40, 19

    , 20, 10, 30, 31, 10, 30, 31

    , 31, 32, 35, 7, 38, 40, 27

    , 27, 10, 18, 20, 10, 23, 31, 5

    , 25, 10, 30, 31

    , 5, 38, 40, 37

    , 5, 18, 32, 33, 39

    , 11, 3, 4, 11

    , 19, 11

    , 39, 6, 9, 39, 40

    , 1, 4, 4

    51

    , 21, 40, 5, 9, 10

    , 16, 3, 4

    , 3, 4, 21, 11

  • 53

    1.0 1.1 2011.4.20

    23 2 2.1

    28

    28

    40

    1.1 1.2 2011.4.29

    8 1.3 1

  • 54

    37

    45 2

    47

    SPEEDI

    52

    CoSTEP

    Communication in Science and Technology

    Education and Research Program CoSTEP

    e-Learning 80

    2011 4 18 1.0 2011 4 20 1.1 2011 4 29 1.2

    CoSTEP CoSTEP

    060-0817 17 8 Tel 011-706-5320 Email [email protected] http://costep.hucc.hokudai.ac.jp