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PostPosted: Aug 22, 2011 11:30 am 
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http://www.thehindu.com/sci-tech/scienc ... 383270.ece

A 10-meter long periscope, indigenously developed for a nuclear reactor at the Indira Gandhi Centre for Atomic Research (IGCAR) in Kalpakkam and claimed to be the longest in the world, was dedicated to the nation today.

The Rs. 3.9-crore periscope, manufactured by city-based Visual Education Aids (P) Ltd (VEA) in collaboration with IGCAR and others, was handed over to Bharatiya Nabhikiya Vidyut Nigam (Bhavini), Kalpakkam, by IGCAR Director S.C. Chetal here.

The periscope is the longest in the world and would be used in the Prototype Fast Breeder Reactor to view objects inside the reactor during maintenance, Mr. Chetal said.

VEA Director J Balu said the periscope, to be taken to Kalpakkam soon, can be remotely operated and also has motorised facilities for scanning the area of interest and image zooming and rotation.

The Applied Spectroscopy Division, Division of Remote Handling and Robotics and Centre for Design and Manufacture of Bhabha Atomic Research Centre (BARC) Mumbai were also involved in the two-year long project, Mr. Balu said.


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PostPosted: Aug 22, 2011 8:14 pm 
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Optical linkage means less chance of electronic failure. It could be a useful back up anywhere.


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PostPosted: Aug 29, 2011 2:28 pm 
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http://ibnlive.in.com/news/nuclear-safe ... 0-120.html

Some more developments
CHENNAI: India is now conducting out-of-pile tests for the first time to ensure foolproof security of its nuclear reactors, according top scientists of the nation.
Indira Gandhi Centre for Atomic Research director SC Chetal told reporters on Saturday that the test is the first of its kind and is being conducted at CSIR-Structural Engineering Research Centre (SERC) Taramani in Chennai to ensure the safety of the reactor before going in for in-pile tests at the nuclear site in Kalpakkam.
Currently, the Rs 40-crore collaborative project between IGCAR and SERC will test the functionality of full-scale prototype reactor system for Prototype Fast Breeder Reactor during quakes of high intensity through the 30 tonnes shake table, said Dr Nagesh R Iyer, director of SERC.
“In Chennai, the expected gravity at acceleration is .0273. But we are testing it by assuming we have a quake six times higher which is roughly .16 gravity at acceleration. This is to make sure we do not miss out any eventuality like that happened in Japan,” said Chetal.
Dr P Chellapandi, director of nuclear safety and engineering group, IGCAR, said the facility, about 17.5 metres high, is the biggest in India, and the second highest in the world. But how does the facility work. Chetal says once the quake is being felt, the boron road is inserted into the core to stop the neutrons from mutating and bringing the reactor to a total shutdown in seconds.“The outcome of the experimental study will demonstrate the reliable operation of the reactor shutdown system even under severe earthquakes,” he said.
The results of the study have high quality academic data, which will be provided to the academic institutions to theoretically predict the seismic response of the complicated system towards enhancing the confidence on seismic design, said Iyer


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