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BARC


Mandate

Laser & Plasma Technology Division is involved in the development of advanced technologies such as Laser, Plasma and Surface engineering and their applications.
It encompasses the development of novel plasma devices; Thick, thin film coatings; Surface modification and research in Laser and Plasma based applications. The Division also focuses in the area of Laser based instrumentation for nuclear, security and industrial requirements.


Highlights


6/2021

Cold plasma treatment using a 13.56 MHz large area hollow cathode device is capable of killing Aermonas bacteria and Bacteriophage virus. Optical emission spectroscopy (OES) studies showed that existence of ‘OH’ radical facilitates this process.



6/2021

Cold plasma treatment using a 13.56 MHz large area hollow cathode device is capable of killing Aermonas bacteria and Bacteriophage virus. Optical emission spectroscopy (OES) studies showed that existence of ‘OH’ radical facilitates this process.



1/2021

Taap Darshak is an infrared based non-contact temperature measuring instrument which is calibrated to measure human skin temperature in the range of 90°F to 110°F. It is an automatic instrument which does not require human intervention for measurement. It has been deployed at various location in BARC and Anushaktinagar as per COVID-19 guidelines for thermal screening of visitors entering a premises. Its Technology is available for transfer.



10/2020

A triple torch air plasma gasifier consisting of a feeder unit, plasma torches, primary chamber, secondary chamber, scrubber, power supply, control units, blower and emission stack has been fabricated, installed and commissioned at the PRIPShed site of L&PTD, BARC for safe and environment friendly mitigation of non-explosive non-biodegradable solid wastes including chlorinated plastic using high temperature air plasma. The unit is designed to mitigate the mentioned type of solid wastes at a rate of 1 ton per day avoiding environmental release of highly carcinogenic dioxin and furan and very harmful SOx and NOx and other pollutants like fine carbon particulates and poisonous carbon monoxide.



11/2016

Laser Vibrometer works on the principle of Optical triangulation technique. It has vibration amplitude measurement range of 5 μm to 5 mm and frequency range of 0.1 Hz to 1 kHz. Its technology has been transferred to private industry in Nov. 2016 and is still available for transfer.



8/2015

Laser Screen Projectile Velocimeter is a projectile velocity measuring instrument based on time of flight principle using diode laser generated light sheets. It has measurement range of 0.1 m/s to 5000 m/s with an accuracy of 2% of measured value. Its technology has been transferred to private industry in Aug. 2015 and available for transfer.



8/2015

Laser Screen Projectile Velocimeter is a projectile velocity measuring instrument based on time of flight principle using diode laser generated light sheets. It has measurement range of 0.1 m/s to 5000 m/s with an accuracy of 2% of measured value. Its technology has been transferred to private industry in Aug. 2015 and available for transfer.



8/2013

Lascan Dia-Gauge is a diode laser based non-contact diameter measuring instrument. It uses shadow pulse width measurement technique and has measurement range of 1 to 25 mm with an accuracy of ±5 μm. Its technology has been transferred to private industry.



8/2013

Lascan Dia-Gauge is a diode laser based non-contact diameter measuring instrument. It uses shadow pulse width measurement technique and has measurement range of 1 to 25 mm with an accuracy of ±5 μm. Its technology has been transferred to private industry.




Facilities

01-01-2020

Metallic and Dielectric thin film deposition by PVD technique
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01-01-2020

Thickness range 100 micron to 1mm
\r\nAny material which has definite melting point (Ceramics, metals)
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Technologies Developed

25-11-2018

An air plasma based gasifier unit is developed consisting of gasifier chamber, secondary chamber and scrubber system. Conversion efficiency is more than 99% while adhering to environmental emission norms.
\r\nAir from the atmosphere is converted into plasma which produces CO and H2 as fuel gas from carbonaceous waste.


25-11-2018

A portable stand alone enthalpy probe plasma diagnosis unit is developed for direct determination of plasma temperature in the range below 10,000K for the first time in India. The system consists of an enthalpy probe, residual gas analyser, gas flow sensors, temperature sensors, vacuum system and data acquisition system.


25-11-2018

A portable standalone CAP unit is developed for biomedical applications. CAP offers a weakly ionized gas discharge plasma, possessing electrons, ions and neutrals. CAP of water, peroxide result in formation of OH radicals that is used in sterilization applications.


25-11-2018

A high efficiency low power (less than 10kW), low cost (less than Rs 50,000/-) plasma torch is developed for chemical and general plasma processing applications. The torch has an efficiency of above 60%, while typical torches for similar applications do have electro-thermal efficiency around 40%.


25-11-2018

A high efficiency low power (less than 10kW), low cost (less than Rs 50,000/-) plasma torch is developed for chemical and general plasma processing applications. The torch has an efficiency of above 60%, while typical torches for similar applications do have electro-thermal efficiency around 40%.


(25-11-2018) Long Jet Nitrogen Plasma Torch


A Tungsten cathode segmented electrode variable power nitrogen plasma torch is developed. Specialty of the torch is that it can produce extremely long (~30 cm) plasma jet for processing application. Use of tungsten cathode makes it rugged and use of nitrogen offers non-oxidizing environment.



25-11-2018

A self stabilized argon plasma torch is developed. Stabilization is done by routing the arc current itself through a coil that surrounds the anode. Magnetic field produced by the coil stabilizes the arc. No external power supply is required to create the axial magnetic field for stabilization. Application of magnetic field dramatically enhances anode life.


25-11-2018

A 3 MHZ, 30 kW RF plasma based nano-synthesis system is developed for the first time in India. The system is successfully used for bulk synthesis of high temperature ceramic nano-powders of yttrum oxide, aluminum oxide and neodymium oxide. Obtained nano-powders are successfully used to get YAG (Yttrium aluminum garnet) phase through reactive sintering.


25-06-2018

Fiber Optic Fabry Perot Interferometer based dynamic displacement sensor developed for vibration sensing applications. The sensor is designed to measure precise vibration remotely by making use of a fiber optics probe. The use of silica based fiber optics and remote electronics makes the sensor suitable for measurements in radiation environment.
\r\nSalient Features:-
\r\n• Measurement Frequency Range : 1Hz to 5 KHz
\r\n• Measurement Displacement Range : 0.5µm - 500µm @1Hz
\r\n• Velocity : upto 5mm/sec
\r\n• Standoff Distance : <10mm
\r\n• Resolution : 25nm


25-06-2018

Laser Vibrometer works on the principle of optical triangulation where in laser beam falls on the target and the back scattered light is collected by suitable optics to focus on a position sensitive detector (PSD). The position of focused spot on the detector is related to the distance of the target from the sensor. As the object moves to and fro (vibrates), the focused spot on the PSD also moves. The movement of focused spot on the PSD is proportional to the displacement of the target from its center position.
\r\nSalient Features:-
\r\n• Vibration Frequency range : 0.1 hz to 1 kHz
\r\n• Vibration amplitude Range : ±2 µm to ± 5 mm from center
\r\n• Measuring range : 195 mm to 205mm
\r\n• Standoff distance : 200 mm
\r\n• Max. Linearity error : 2.5 % of measured value
\r\n• Resolution : 1µm


25-06-2018

It is a Laser based non-invasive, hand-held, portable, stand-alone roughness measuring instrument. Most suitable for roughness measurement of flat metallic polished surfaces in the range of 0.05µm to 0.2µm or for routine comparison of similar surfaces.
\r\nSalient Features:-
\r\n• Measurement Range - Average roughness: 0.05 µm to 0.22 µm
\r\n• Measurement Range - RMS roughness: 0.05 µm to 0.15 µm
\r\n• Accuracy : ±20 %
\r\n• Measurement time: <1 sec
\r\n• Measurable surface shape: Flat
\r\n• Type of surface finish: Polished , Grinded
\r\n• Surface material: Electroformed nickel alloy


25-06-2018

A Laser based instrument has been developed for speed measurement of fast moving projectile, as small as 4 mm diameter, using time of flight principle.
\r\nSalient Features:-
\r\n• Measuring Range: 24m/s to 500m/s
\r\n• Size of Projectile: 4mm and above
\r\n• Accuracy: Better than 2.5%
\r\n• Portable and Stand-alone
\r\n• RS-232 Interface


25-06-2018

Semiconductor laser voice communicator offers a low cost, short range, compact & light weight, secure infrared speech communication of telephonic quality, in full duplex mode using pulse frequency modulation operating at 10KPPS. System consists of two sets of laser trans-receiver units, which can transmit and receive 10kbit/sec of voice information over a range of 1.5KM.
\r\nSalient Features:-
\r\n• Low power consumption
\r\n• Secure point to point full duplex communication
\r\n• Invisible source with low divergence
\r\n• Maximum range in fair weather-1.5 KM


25-06-2018

LASCAN DIA-GAUGE is an instrument for dimension measurement based on the optical technique of beam scanning. A fine beam of visible light from diode Laser scans a measuring plane using a rotating mirror and collimating optics. An object kept in the measuring plane obstructs the scanning beam for the time proportional to its dimension.
\r\nSalient Features :-
\r\n• Measuring Range: 1 - 25 mm
\r\n• Accuracy: ±10 micron
\r\n• Repeat ability: ±2 micron
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25-06-2018

Laser Velocity Meter is a non-contact, microcontroller based stand-alone velocity measuring instrument based on time of flight principle. Shadow of the moving object generated by cutting of two parallel optical sheets is used for calculate velocity of the projectile.
\r\nSalient Features
\r\n• Measuring Range: 25 - 5000 m/sec
\r\n• Accuracy: ± 2 % of measured value
\r\n• Measurement Time (max): 10 msec
\r\n



Show Cases

BARC

LASCAN DIA-GAUGE

BARC

Projectile Speed Measurement

BARC

Laser Velocity Meter

BARC

Laser Surf-check

BARC

Free Space Voice/Data Communication

BARC

Flow Visualization System using Particle Image Velocimetry

BARC

Switch-less operation of a TEA CO2 laser

BARC

Wavelength Dependent Study of Laser Assisted Surface Cleaning

BARC

Plasma Spray CVD System

BARC

Magnetically stabilized argon plasma torch

BARC

RF Plasma Nano-synthesis System

BARC

Long Jet Nitrogen Plasma Torch

BARC

Air Plasma Gasifier Unit for Waste Management

BARC

Enthalpy Probe Thermal Plasma Diagnosis Unit

BARC

Laser Vibrometer (Kampan)

05-Jul-2021