New Radiation detecting sensors and systems being developed for threat of dirty bomb attack and Nuclear accidents

There is also  growing concern that the widespread availability of radiological materials may result in a dirty bomb attack. Recently a secret group of fewer than 10 people in undercover congressional operation was easily able to buy the raw ingredients for a dirty bomb in US. This has set off alarms among some lawmakers and officials in Washington about risks that terrorists inside the United States could undertake a “dirty bomb” attack and the harmful effects of radiation from such an event. Apart from terrorists, there is also threat of accidents involving nuclear material.