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{
"metadata": {
"name": "",
"signature": "sha256:c64912256bdcf8bcc5ce71dffc2b43e608072175b592d01f0ff0fe3771ee0132"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"6: Non Destructive Testing"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.1, Page number 36"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"t=50; #thickness of metal(mm)\n",
"d=1; #hole diameter(mm)\n",
"\n",
"#Calculation\n",
"sp=(d/t)*100; #sensitivity percentage(%)\n",
"\n",
"#Result\n",
"print \"sensitivity percentage of wire is\",sp,\"%\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"sensitivity percentage of wire is 2.0 %\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.2, Page number 37"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"I=20*10**-3; #tube current(A)\n",
"L=1; #source to film distance(m)\n",
"t=60; #exposure time(s)\n",
"\n",
"#Calculation\n",
"ef=I*t/(L**2); #exposure factor\n",
"\n",
"#Result\n",
"print \"exposure factor is\",ef"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"exposure factor is 1.2\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.3, Page number 37"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"IbyI0=20; #reduction in intensity\n",
"mew=1.62; #linear absorption coefficient(per cm)\n",
"\n",
"#Calculation\n",
"x=math.log(IbyI0)/mew; #thickness of aluminium(cm)\n",
"\n",
"#Result\n",
"print \"thickness of aluminium is\",round(x,2),\"*10**-2 m\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"thickness of aluminium is 1.85 *10**-2 m\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.4, Page number 38"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"x=2.5*10**-2; #thickness of material(m)\n",
"mew=2; #linear absorption coefficient(per cm)\n",
"\n",
"#Calculation\n",
"\n",
"\n",
"#Result\n",
"print \" \""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" \n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.5, Page number 38"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"ef=0.35; #exposure factor(curie hour)\n",
"pss=5; #present source strength(curie)\n",
"\n",
"#Calculation\n",
"et=ef/pss; #exposure time(h)\n",
"\n",
"#Result\n",
"print \"exposure time is\",et*60,\"min\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"exposure time is 4.2 min\n"
]
}
],
"prompt_number": 9
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example number 6.6, Page number 39"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"#importing modules\n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"fd=20*10**-2; #film focus distance(m)\n",
"Sd=5*10**-2; #displacement of X-ray tube(m)\n",
"t=5*10**-2; #thickness of steel(m)\n",
"S=0.5*10**-2; #distance between images(m)\n",
"\n",
"#Calculation\n",
"d=fd*S/(S+Sd); #distance of flow from bottom surface(m)\n",
"l=t-d; #location of flow from top surface(m)\n",
"\n",
"#Result\n",
"print \"location of flow from top surface is\",round(l*10**2,1),\"*10**-2 m\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"location of flow from top surface is 3.2 *10**-2 m\n"
]
}
],
"prompt_number": 12
}
],
"metadata": {}
}
]
}
|
