Device and method for scanning items

A method of screening items of baggage, using a device, comprising the steps of:

• scanning the item of baggage using an x-ray scanner and thereby generating data indicative of objects within the item of baggage;
• estimating the volume of the item of baggage using a second scanner;
• estimating a physical dimension of at least one object within the item of baggage lusing a third scanner, wherein the third scanner uses non-ionising radiation;
• and
• generating, by a processor, a risk estimation based on the data indicative of objects within the item of baggage, the estimated volume, and the estimated physical dimension of at least one object within the item of baggage;
• and
• generating an attenuation/effective atomic number histogram using the data indicative of objects within the item of baggage and is configured to use the attenuation/effective atomic number histogram when generating the risk estimation for the item of baggage.

A kit, installable in an x-ray scanner, comprising:

• an optical depth sensor, configured to estimate a volume of an item of baggage;
• a radar scanner, configured to estimate a physical dimension of at least one object within the item of baggage;
• and
• a processor, configured to utilize:
• data indicative of objects within the item of baggage, which is provided by the x-ray scanner,
• the estimation of the volume of the item of baggage, and
• the estimation of a physical dimension of at least one object within the item of baggage;
• so as to generate a risk estimation for the item of baggage.