'Silicon can deceive Hot Spot'

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Hot Spot is an infra-red technology used to determine whether the ball has made contact with the bat. Source:Supplied

A PERTH university lecturer has confirmed that silicone tape on the edge of a cricket bat can stop edges being picked up by the Hot Spot camera's infrared technology.

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Dr Masood Khan of Curtin University's School of Civil and Mechanical Engineering has been conducting research into thermal infrared image processing and says the tape has the capability to disguise edges on Hot Spot.

However, players from England and Australia have strenuously denied using the tape to cheat the technology and the International Cricket Council claims there is no investigation into any player relating to Hot Spot.

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Many players use fibreglass to cover their bats to protect them. Modern soft-pressed bats tend to crack quickly without protection. 

"The chemical composition of silicone tape makes it work as an inhibitor for most radiation. Its physical characteristics also make it insensitive to minor physical impacts," Dr Khan said.

"Its chemical and physical features ensure an even conduction and dispersion of heat within its structure, meaning thermal changes caused by the impact of a ball as it hits the edge of a bat may remain unnoticed by a thermal infrared camera such as Hot Spot.

"Hot Spot imaging systems operate at moderately high frame rates and under normal field conditions may only measure temperature changes of 0.5 degree Celsius or more.

"A bat with edges covered by silicone tape or a layer of silicone gel is more likely to produce temperature changes less significant than this when struck on the edge by a ball, meaning the Hot Spot system may not show the contact."

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