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Nuclear Energy (2938 words) Essay

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Nuclear Energy
You are watching the control panels and
gages for rector two. Sitting comely you think about how easy your job
is. It is a joke! All day you sit around and watch the gages for reactor
number two just to make sure they maintain their settings. You don’t even
need to look at the gages either because a computer automatically regulates
them without you. Life is so good. Suddenly all the sirens go of and the
gages and displays spin wildly in every direction. The ground shakes and
you can hear the sound of a deep rumble. Unknown to you, the reactor’s
cooling pumps have failed to cool the reactor’s core and in 3 seconds the
temperature went from 280 degrees centigrade to 4,000 degrees centigrade.

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The water that was in the reactor is instantly turned to steam which creates
tremendous amount of pressure in the reactor core. Above the reactor core
there is a 5 foot thick lead plate and above that there is a meter thick
floor composed of iron, barium, serpentine, concrete, and stone. The exploding
steam fires the floor up like shrapnel. The metal plate goes through the
four foot thick concrete roof like butter and reaches and altitude of sixty
meters. You can hear ripping, rending, wrenching, screeching, scraping,
tearing sounds of a vast machine breaking apart. L. Ray Silver, a leading
author who covered the disaster at Chernobyl, said that within the core,
steam reacts with zirconium to produce that first explosive in nature’s
arsenal, hydrogen. Near-molten fuel fragments shatter nearly incandescent
graphite, torching chunks of it, exploding the hydrogen. The explosion
breaks every pipe in the building rocking it with such power that the building
is split into sections (11-13). You look down at your body and notice that
it feels hot and your hands look different. Unknown to you a tremendous
amount of neutrons are hitting your cells and taking chucks out of your
skin. Suddenly everything goes black.


The paragraph above describes the scene
of what happened at Chernobyl nuclear plant a few years ago. From that
time until the present many other smaller accidents have happened. From
these accidents many people have died and millions have been indirectly
affected. Nuclear energy has far to many negative problems than advantages.


From the mining of uranium to disposal of nuclear waist there are problems
of such magnitude that no scientist on this earth has an answer for. Nuclear
energy has so many problems associated to it that it should be banned from
the earth.


To understand the threat of nuclear energy
we must first understand what happens in a nuclear reaction. Ann E. Weiss,
who has written several books on the subject of nuclear energy, described
what happens inside a nuclear power plant. In a nuclear reaction the nuclei
of its atoms split, producing energy in the form of heat. The heat makes
steam which powers a turbine. Fission takes place in a nuclear reactor.


The fuel used is pellets of uranium. In a modern reactor, half-inch long
pellets of uranium are packed into 12 or 14 foot tubes made of an alloy
of the metal zirconium. About 50,000 zircalloy fuel rods make up the reaction
core. To control a nuclear reaction control rods made of cadmium is used
which absorbs neutrons. With the control rods in place in the core, a chain
reaction cannot begin. When the plant operators want to start the chain
reaction they activate machinery that pulls the control rods away from
the core. Once this is done a single free neutron is enough to set off
the reaction. As the reaction continues, a moderator slows the neutrons
down enough to ensure that they will continually split more uranium atoms.


At the same time, the moderator acts as a coolant. It keep the overall
temperature about 300 degrees Celsius. Since the temperature at spots inside
the fuel rods may be as high as 1,100 degrees Celsius, enormous amounts
of coolant are continually needed to keep the core temperature at the proper
level. When the plant must be must be shut down the control rods are lowered
all the way back into the core. That brings the chain reaction to a standstill.


The core cools, and steam is no longer produced (23-24). In all nuclear
reactions use uranium and produce some plutonium.


Since nuclear reactions produce a considerable
amount of plutonium there are considerable hazards that come along with
it. Nader and Abbotts, two men who have a great amount of experience in
the nuclear industry, comment that:
Plutonium’s major dangers include the fact
that it is weapons-grade material, that it is highly toxic, and it is extremely
long-lasting: it will take 24,000 years for half of it to decay. In addition
to the possibility that plutonium could contaminate the environment or
the population in an accident, there is also the danger that a terrorist
group could steal plutonium for the purposes of fashioning an illicit nuclear
weapon. (63)
Plutonium-239 is a man-made reactor by-product
which emits highly energetic alpha particles. Even though alpha particles
can be stopped by a piece of paper that can be very dangerous to tissue
if they are taken into the body by ingestion or inhalation. Expressing
extreme concern over the issue of plutonium getting into the human body
Nader and Abbotts write:
Experiments with dogs show that the inhalation
of as little as three millionths of a gram of Pu-239 can cause lung cancer.


John Gofman has reported that plutonium and other alpha-emitters, such
as curium and americium , when in
a form that cannot readily be dissolved by body fluids, ‘represent an inhalation
hazard in a class some five orders of magnitude more potent,
weight for weight, than potent chemical carcinogens.’ The fact that plutonium
has a very long half-life, 24,000 years, makes it one of the deadliest
elements known and one of the most difficult to manage. (78)
The reason why plutonium is so dangerous
when it gets into the lungs is because plutonium releases radiation to
a small mass of the lung at a very short distance. This effect of radiation
from plutonium giving a concentrated dose to one small area is much greater
than if the same amount of radiation had been uniformly distributed throughout
the lung. Another problem with plutonium is its toxicity. Plutonium is
the most toxic of all elements. Fred H. Knelman, who was a senior executive
on the nuclear control panel in Washington D.C., wrote, “One pound of plutonium-239,
distributed to the lungs of a large population, could cause between ten
and fifteen million lung-cancer deaths” (32).

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Plutonium is rapidly becoming more and
more common throughout the world because it is being produced all the time
in nuclear reactions. The Nuclear Control Institute, in Washington D.C.,
published a paper on the Internet describing the problem of plutonium production.


By the turn of the century, 1,400 metric
tons of plutonium will have been produced in the spent fuel of nuclear
power reactors, and some 300 tons of it will have been separated into weapons-usable
form. Less than 18 pounds (8 kilograms) is needed to build a Nagasaki-type
bomb. The amounts will continue to grow rapidly. By 2010, there will be
550 tons of separated plutonium in commerce, more than twice the amount
now contained in the world’s nuclear arsenals. By that time, Japan will
have acquired an amount of plutonium equivalent to the present U.S. military
stockpile. (“The Problem”, 2)
The quote above has a few hidden statements
behind it. First it predicts that soon other nations will have a greater
nuclear arsenal than the U.S.A. Also the quote says that plutonium is growing
to be an excess product from nuclear reactions and thus other countries
who are not economically stable will have a greater tendency to want to
sell some plutonium to power hungry politicians for money to help the economy
of their own country.


The subject of plutonium directly relates
to nuclear terrorism. The terrorists’ holy grail is to build a nuclear
bomb. It is becoming increasingly easy to find the knowledge on how to
build a nuclear bomb. The only thing that is holding terrorists back is
getting their hands on some plutonium or weapons-grade uranium.


Christopher K. Mitchell, a student under
professor J. Ruvalds, wrote a research report in physics 177N class that
stated that when constructing a nuclear weapon, there would be two main
issues for a terrorist. The first issue would be the knowledge required
about building the bomb and making it work. Essentially, this knowledge
is not a great problem. For instance, anyone can purchase a copy of “The
Los Alamos Primer” for approximately twenty-three dollars. This book details
the work of scientist who participated in the Manhattan Project tests in
New Mexico. Inside the book, a terrorist could find the amount of uranium
needed to create a successful nuclear explosion. In addition, the book
details the different types of nuclear bombs and how to construct them.


According to Carson Mark, a nuclear weapons specialist, a terrorist group
would need some specialist, such as a nuclear physicist, a chemist, and
an explosives engineer to build a nuclear weapon. In addition, some specialized
equipment would be required. The second issue of building a nuclear weapon
is the material needed to fuel the chemical reaction. Of the two issues,
this one creates a much larger problem. Until recently, it was nearly impossible
for a terrorist to even consider obtaining either bomb grade plutonium
or uranium. In the past, these bomb grade fuels would have been nearly
impossible to steal and the price to purchase such materials was far above
the budget of any terrorist group. Many experts feel that it would cost
at least five to ten million dollars to purchase enough plutonium to make
a nuclear weapon. Others place the estimate as high as twenty or thirty
million dollars (2). The problems of obtaining money and scientists are
not big. The Soviet Union has left many of its top nuclear scientists without
jobs and money. Many would be happy to get out of their crime ridden country
to work for a terrorist group or another country associated with terrorism
like Iran or Iraq. Money is not a problem for these two countries who hold
some of the world’s biggest oil reserves. This paragraph represents only
one type of terrorism that can be done with money and talent but what can
other terrorist groups do who don’t have very much money?
One very vulnerable terrorist target is
the nuclear powerplants. Scott D. Portzline, who has a Ph.D. is nuclear
physics, writes that :
Considering the fact that a nuclear plant
houses more than a thousand times the radiation as released in an atomic
burst, the magnitude of a single attack could reach beyond 100,000 deaths
and the immediate loss of tens of billions of dollars. The land and properties
destroyed (your insurance won’t cover nuclear disasters) would remain useless
for decades and would become a stark monument reminding the world of the
terrorists’ ideology. With more than 100 reactors in the United States
alone, if one is successfully destroyed, just threatening additional attacks
could instill the sort of high-impact terror which is being sought by a
new breed of terrorists. (1)
For years, what has caused concern for
many observers and several federal oversight committees is a report on
the potential for damage from truck bombs.


Unacceptable damage to vital reactor systems
could occur from a relatively small charge at close setback distances,
and from larger but still reasonable-sized charges at large setback distances,
greater than the protected area for most plants. (“Nuclear Terrorism”,
2)
This represents the Nuclear Report Committee’s
most feared result. At some plants, a large bomb detonated offsite can
cause enough damage to lead to a deadly release of radiation or even a
meltdown!
The release of radiation can come from
different areas in the nuclear cycle. One of the biggest radiation threats
is uranium mill tailings. “After the uranium ore is separated, the tailings
are left behind. Tailings contain radioactive thorium which remains dangerous
for over 100,000 years” (“Nuclear Waist: The Big Picture”, 2). Thousands
of tons of uranium mill tailings are being produced each year. Abbots and
Nader comment that uranium mill tailings is a byproduct of the enrichment
process. Less than one fifth of the amount of potential uranium is extracted
in a given amount of rock or sand. (90) This leaves four fifths of the
uranium that was inside the rock deep in the earth, on top of the ground
in the form of sand. This sand can blow across large amounts of land. “By
1986 2.7 billion cubic feet of tailings were blowing in the wind, damaging
native crops and human life” (Nuclear Waist, the Big Picture 2). This is
one of the biggest environmental hazard that we face today. Expressing
their concern about uranium dust, Nader and Abbotts write :
Uranium dust represents a respiratory hazard
to mine and mill workers, but most of the problems with uranium mining
and milling are associated with uranium’s decay products. They present
a much greater radiation hazard. Through a series of nuclear reactions,
uranium undergoes radioactive decay to radium, which in turn decays ro
radon gas. The radon gas in turn decays to isotopes which in turn can cause
serious biological damage, particulary when inhaled. (82 – 84)
The serious results of having mill tailings
open to the environment are just being felt now. Since the beginning of
the nuclear age to the late 1960’s there has been no official record kept
on where mill tailings have been stored. Many towns in the middle of the
United States have been built on mill tailings. Some people unknowingly
have used mill tailings as building materials. Corinne Browne and Robert
Munroe, who are very well internationally known authors, state that :
In some places, such as Grand Junction,
Colorado, people used the mill tailings as landfill and construction material.

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In Grand Junction, five thousand houses, a school, a church, a supermarket,
and a hospital were built on tailings, thus creating situations where people
live and work in buildings emitting radioactivity. (81)
In towns that have been built on mill tailings
there is a great increase in health related costs because of an increase
in cancers and radiation induced diseases. Corinne Browne and Robert Munroe
go comment on the effects of living in an environment that has radiation.


In the early 1970s, a pediatrician in Grand
Junction noticed an abnormally large number of children being born with
cleft lips and cleft palates. A study showed that there was a far higher
incidence of leukemia, hydroencephalitis, and subtle birth defects in the
Grand Junction area than in surrounding counties. (81)
A person could then conclude that the nuclear
industry is mostly to blame for the nation wide increase of cancers and
deaths. Is the nuclear industry really benefitting the nation or is it
just making the world into a radioactive dump which takes thousands of
years to clean up?
One last major problem with nuclear energy
that needs to be touched on is the storage of nuclear waste. Nuclear waste
includes all contaminated parts that have had contact with any source of
nuclear energy and all products of a nuclear reaction that was discussed
at the beginning of the paper. There are several problems that relate to
the storage of nuclear energy.


At a nuclear storage facility, there are
security officers, technicians, scientists, and regular staff which make
sure the facility is safe. In the paper, “Uranium: Its Uses and Hazards”,
it states the half-life of some radioactive isotopes. Uranium-238 which
has a half-life of 4.46 billion years and that uranium-235 which has a
half-life of 704 million years represent most of nuclear waste stored at
nuclear waist facilities. (1) This means that people will have to be monitoring
these facilities for about ten billion years. Fred H. Knelman is very concerned
about the time and man power required to run these storage facilities.


Knelman wrote :
There must always be intelligent people
around to cope with eventualities we have not thought of….Reactor safety,
waste disposal, and the transport of radioactive materials are complex
matters about which little can be said with absolute certainty. Is mankind
prepared to exert the eternal vigilance needed to ensure proper and safe
operation of its nuclear system? (39)
The searching for proper storage facilities
and places has always been one of the top priorities of the nuclear industry.


The problem is that no one wants a nuclear waste facility in there back
yard. Literally billions of dollars has been spent just on looking for
places to store nuclear waste.


Nuclear energy has many short term benefits
but many more short term and long term problems. If anyone of the lethal
potential problems develop and get out of control than the world is in
serious trouble. Can the world afford to be dancing with death? Just think
if a nuclear plant exploded because of a terrorist attack how our lives
would be changed forever. Are we unselfish enough live without a few comforts
now so that our children can have a brighter future? A nuclear disaster
is the worst thing that can happen to this planet because it threatens
the whole future of the human race. Nuclear energy is not worth the risk.


The problem of nuclear energy such as terrorism, plutonium production,
uranium mill tailings, and waste storage problems make nuclear energy too
risky for humans to even experiment with. Nuclear energy holds our future
in a tight grip so we must do something about it.


Works Cited
Corinne Brown, and Robert Munroe. Time
Bomb, Understanding the Treat of Nuclear Power. New York: William Morrow
& Company, Inc, 1981
Knelman, Fred H. Nuclear Energy The Unforgiving
Technology. Edmonton: Hurtig Publishers, 1976.


Mitchell, Christopher K. “Nuclear Terrorism.”
14 Nov. 1996 Available : http://www.nucl.com/terror.html.


“Nuclear Waste: The Big Picture.” 10 Nov.


1996. Available: http://www.sfo.com/~rherried/waste.html.


Portzline, Scott D. “Nuclear Terrorism.”
10 Nov. 1996. Available: http://www.nci.com/terrorism.html.


Ralph Nader, and John Abbotts. The Menace
of Atomic Energy. New York: W.W. Norton & Company Inc, 1977.


Silver, L. Ray. Fallout From Chernobyl.


Toronto: Deneau Publishers & Company LTD, 1987.


“The Problem.” 10 Nov. 1996. Available:
http://www.wideopen.igc.org/nci/prob.htm.


“Uranium: Its Uses and Hazards.” 20 Nov.


1996. Available : http://www.ieer.org/ieer/fctsheet/uranium.html.


Weiss, Ann E. The Nuclear Question. New
York: Harcourt Brace Jovanovich Publishers, 1981.

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Nuclear Energy (2938 words) Essay
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Nuclear EnergyLet American Consumer Counseling Help you Get Out of Debt!
Nuclear Energy
You are watching the control panels and
gages for rector two. Sitting comely you think about how easy your job
is. It is a joke! All day you sit around and watch the gages for reactor
number two just to make sure they maintain their settings. You don't even
need to look at the gages either because a computer automatically regulates
them without you. Life is so good. Suddenly all the si

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Nuclear Energy (2938 words) Essay
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