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Title: India to test beam weapon by year-end
Author: PTI
Publication: The Times of India
Date: Aug 18, 1999
URL:
http://www.timesofindia.com/190899/19indi8.htm
MUMBAI: The Bhabha Atomic Research Centre (BARC) here is in the final
stages of assembling a powerful electron accelerating machine named
``Kali-5000'' which, its scientists say, can potentially be used as a
beam weapon.
Bursts of microwaves packed with gigawatts of power (one gigawatt is
1,000 million watts) produced by this machine, when aimed at enemy
missiles and aircraft will cripple their electronics systems and
computer chips and bring them down.
According to scientists, ``soft killing'' by high power microwaves has
advantages over the so-called laser weapon which destroys by drilling
holes through metal.
Kali-5000 will be ready for testing by the end of this year, according
to P H Ron, head of the accelerator and pulse power division at BARC and
chief designer of India's first star war weapon.
However, in the present form, India's beam weapon is too bulky - it
weighs 26 tonnes - including tanks containing 12,000 litres of oil. Mr
Ron said some ``compacting'' was possible.
He said the Kali (Kilo-ampere linear injector) machine was developed for
industrial applications and that the defence use was a recent spin off.
He, however, declined to elaborate.
Describing it as a machine ``bordering basic research'', Atomic Energy
Commission chairman Rajagopalan Chidambaram admitted in an interview
that it has military potential. ``There are some technologies we have to
be in touch with because they may become useful (later),'' he said.
The development of the Kali machine was mooted in 1985 by Mr
Chidambaram, then director of BARC, but work earnestly began in 1989.
Mr Ron said the machine essentially generated pulses of highly energetic
electrons. Other components in the machine down the line converted the
electrons into flash X-rays (for ultra high-speed photography) or
microwaves. The electron beam itself can be used for welding.
The Defence Ballistics Research Institute in Chandigarh is already using
an X-ray version of the Kali to study speed of projectiles.
Another defence institute in Bangalore is using a microwave- producing
version of the Kali, which the scientists use for testing the
vulnerability of the electronic systems going into the light combat
aircraft under development and designing electrostatic shields to
protect them from microwave attack by the enemy.
According to BARC scientists, the Kali machine has for the first time
provided India a way to ``harden'' the electronic systems used in
satellites and missiles against the deadly electromagnetic impulses
(EMI) generated by nuclear weapons.
The EMI wrecks havoc by creating intense electric field of several
thousand volts per centimetre. The electronic components currently used
in missiles can withstand fields of just 300 volts per centimetre.
While the Kali systems built so far are single shot pulse power systems
(they produce one burst of microwaves and the next burst comes much
later), the Kali-5000 is a rapid fire device, and hence its potential as
a beam weapon.
According to reports published by BARC, the machine will shoot several
thousand bursts of microwaves, each burst lasting for just 60 billionths
of a second and packed with a power of about four gigawatts.
The high-power microwave pulses travel in a straight line and do not
dissipate their energy if the frequency falls between three and 10
gigahertz.
According to BARC scientists, a microwave power of 150 megawatts has
already been demonstrated in earlier versions of Kali.(PTI)