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"Turbolasers" are the term used for heavy non-solid artillery
weapons utilized by the Galactic Empire. Despite the somewhat
misleading name, turbolaser technology actually has little to do
with lasers. The technology applied in turbolasers spans many
different classes of beam weapons from the heavy cannons aboard
Star Destroyers, to the common blaster rifle.
The
heart and lifeblood of turbolaser technology is an exotic gas
known as Tibanna. It is a naturally occurring compound usually
forged in the deeper layers of some gas giants.
Unrefined Tibanna is gaseous at temperatures above 144.32 Kelvin
and solidifies at approximately 2.35 Kelvin, but no sample of
Tibanna has ever been cooled below 10 Kelvin. It is theorized that
a pure and refined sample of Tibanna would begin to crystallize at
temperature extremes below 5.92 Kelvin, but this has not been
proven.
Elemental gases such as pure argon or hydrogen only absorb light
energy at 26% or 32% efficiency, respectively, and most gaseous
compounds do not absorb at efficiencies exceeding 5%. However,
Tibanna's basic molecular shape allows it to absorb photon
energy at approximately 52.5% efficiency, an unprecedented amount
in energy-particle interaction.
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Refined Tibanna, that is, Tibanna which has been naturally
forged and irradiated in the pressure currents found in the
middle-layers of a gas giant, will absorb photons at 79.6%
efficiency, making it ideal for use as an energy-delivery
system. Raw Tibanna
forms under the exceedingly strong gravity pressures found in
the heart of some gas giants as a "branch" of a larger,
heavier molecule composed primarily of nickel and iron. Heavy
Oxygen, usually O18 isotopes bond with a group of
molecules at the base of the Tibanna sprout, and allow it to
break free of the larger molecule. |
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form of raw Tibanna will gradually rise toward the middle
layers, where it comes in contact with a thin neutron belt.
These neutrons are usually free-floating subatomic particles
condensed in a layer less than 1.0x10^(-12) inches thick,
released from the violent collision of heavier metal atoms in
the layers below. These free-floating neutrons spin in immense
vortex's at speeds nearing .05% of c. The hydrogen
atoms of the Tibanna molecule collide with these free
neutrons, creating Deuterium and Tritium isotopes. Most often,
these Tibanna molecules are destroyed by the collision, and
dissipate either into smaller gas molecules, or some of the
atoms are hit so that they transmutate into heavier elements
and pull the molecule back toward the heart of the gas giant. |
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However, a small amount (less than 1%) of the raw Tibanna
retains atomic cohesion and gains one atom of deuterium and
three atoms of tritium, while losing one carbon and one
nitrogen atom. This process is known as spin-stabilization,
and produces refined Tibanna. Experimentation with artificial
spin-stabilization techniques (Left) consistently produce
inferior results, thus naturally spin-stabilized Tibanna gas
is highly prized.
Compared with advanced space weaponry, traditional lasers are
neither reliable, efficient, or particularly effective against
anything except a target of known composition. Photons can carry a
great amount of energy and travel at un-anticipateable speeds, but
behave in a widely varying amount of ways depending on the type of
matter they come in contact with. The most amusing example of this
comes from space battles of millennia past, where it was said that
the Old Republic's laser weaponry actually reflected off of an
enemy vessel's hull and hit the ship it originated from. Other,
less embarrassing failures happened when lasers would simply pass
through an enemy ship, like glass, without causing any damage, or
would barely heat up parts of an enemy hull before the cold of
space quickly prevented any serious ill effects. |
Particles with a discernable mass, however, like
protons,
neutrons, and
electrons, are not nearly so fickle; the range of damage that
these types of energy-carriers cause is much more predictable, but
comes at the price of efficiency. Photons are 100% efficient
energy carriers, a claim that no other known particle or substance
can make. Imperial turbolaser technology takes advantage of this
by using
intense focused lasers to energize compact pockets of Tibanna
(Below left)
until the weak
molecular bonds of the gas break down
at 4,000 Kelvin.
Once that occurs, a
second beam of photons is introduced that excites the free
molecules to
over 10,000 Kelvin,
at which time the
electrons on the individual atoms break away and the gas becomes
plasma.
These pockets of plasma are retained in a small magnetic bottle at
the base of the turbolaser barrel
(Above middle and above left),
until the moment the
weapon discharges.
When it does,
the magnetic seal at
the mouth of the containment chamber is released, and a ring pulse
guides and accelerates the excited atoms along the barrel and out
of the apparatus
(Below left).
The visible effect is
a condensed bolt of green glowing plasma
(Below right),
directed at high
velocities
(anywhere up to .25c)
toward a target.
Less refined
or impure Tibanna will yield different color bolts ranging
anywhere from red to blue to green.
As the plasma bolt
travels through space, it is
accompanied by a
beam of invisible electrons that propagate along the bolt's
desired trajectory at the speed of light. These electrons are
generated at the mouth of the turret and "spin" around the path of
the plasma bolt, creating an electromagnetic tube which helps to
focus the packet and keep it from dispersing over long distances.
Without this "electron
jacket," the
turbolaser bolt quickly dissipates into harmless gas, and it is
this jacket which
ray shielding works to counteract. Often, when a turbolaser
impacts a vessel, it is this electromagnetic field which exerts a
sizeable force on a target, resulting in a distinct impact
sensation compared to a physical collision. Turbolasers can also
be used for
"flak" bursts, by purposely closing and then terminating the
confinement beam
before the bolt hits a target.
Blasters operate on a similar principle to turbolasers, but only
heat up the Tibanna to 4,500 Kelvin using a power cell instead of
a laser; higher temperatures would be harder to control and
require a larger magnetic shielding apparatus.
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Because of the nature of turbolaser weapons, tremendous
amounts of excess heat are often generated and require cryosystems for cooling purposes.
Failure of these
systems can cause an emplacement to quickly overheat and
explode.
A diagram of a typical turbolaser emplacement can be seen at
the left. This
configuration can vary widely between different manufacturers
and classes of emplacements. Light turbolasers typically sport
no armor plating, and an integrated fire control system at the
base of the turret. Other emplacements may be totally
computerized, but this is uncommon. As far as StarFleet
captains were concerned, what turbolasers lacked in accuracy or
finesse, they more than made up for in brute power. These plasma
weapons, among the most common artillery used within the Galactic
Empire, are capable of concentrating high amounts of energy across
a relatively small area, making it difficult for
starship shields to appropriately compensate. As multiple
turbolaser bolts impacted the
shields of Federation starships, they would put a large strain
on one or two of the vessel's shield generators, often causing
local power overloads and drilling holes in the vessel's
shield bubble. |
It was for this reason
that StarFleet weapons engineers fielded and standardized
plasma dissipation shields, which helped to spread the energy
of turbolaser impacts over large areas of a
starship's shields, making the defense screens more effective
in combat situations. |