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{
"metadata": {
"name": "",
"signature": "sha256:f65433b5fc699d555a8e1a0c197fcc95a6db55a338dffc279c90983fdf767b28"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapte16-Chemical &Biological Effects of Radiations"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex1-pg672"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"## Exa16.1 : : Page-672 (2011)\n",
"#find 25 mrad\n",
"import math\n",
"R_d = 25.; ## Radiation dose, milli rad\n",
"R_c_gy = 25e-03; ## Dose in centigray\n",
"R_Sv = 25*10**-2 ## Dose in milli sieverts\n",
"print'%s %.2f %s %.2f %s'%(\"\\n25 mrad = \",R_c_gy,\"\" and \" cGy =\",R_Sv,\" mSv\");\n",
"\n",
"## Results\n",
"## 25 mrad = 3e-002 cGy = 0.25 mSv "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"25 mrad = 0.03 0.25 mSv\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex2-pg673"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"## Exa16.2 : : Page-673 (2011)\n",
"#find 100 mega becquerel\n",
"import math\n",
"BC_conv = 100*1e+009/3.7e+10; ## Becquerel curie conversion, milli curie\n",
"print'%s %.2f %s'%(\"\\n100 mega becquerel = \",BC_conv,\" milli curie \")\n",
"\n",
"## Results\n",
"## 100 mega becquerel = 2.7 milli curie "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"100 mega becquerel = 2.70 milli curie \n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex4-pg673"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"## Exa16.4 : : Page-673 (2011)\n",
"#find The requiresd liver dose \n",
"import math\n",
"A = 80*10**6; ## Activity, becquerel\n",
"t_half = 6*3600.; ## Half life, s\n",
"N = A*t_half/0.693; ## Number of surviving radionuclei\n",
"E_released = 0.9*N*(140e+03)*1.6e-19; ## Energy released, joule\n",
"m_l = 1.8; ## Mass of liver of average man, Kg\n",
"liv_dose = E_released*10**2/m_l; ## Liver dose, centigray\n",
"print'%s %.2f %s'%(\"\\nThe requiresd liver dose = \",liv_dose,\" cGy\");\n",
"\n",
"## Result\n",
"## The requiresd liver dose = 2.8 cGy \n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"The requiresd liver dose = 2.79 cGy\n"
]
}
],
"prompt_number": 3
}
],
"metadata": {}
}
]
}
|
