All major airports in the UK have to introduce 3D luggage screening equipment before the end of 2022, the government says.
Ministers argue that technology will increase security, expedite pre-boarding checks and may end travel restrictions on liquids and laptops.
Equipment similar to CT scanners used in hospitals is already being installed at London's Heathrow Airport.
It provides a clearer picture of the contents of the bag, whose staff can scale and rotate for inspection.
- Can your face be your passport?
- Can Space Age Scanner Cut Tails From Airport?
At present, passengers carrying fluid in their luggage are restricted to containers of not more than 1
Restrictions have been in place since November 2006. Their introduction ended a ban on liquids in a cockpit imposed three months earlier when British police said they broke a plot to blow up 10 aircraft using explosives hidden in bottles with drinks.
Announcing new plans, Prime Minister Boris Johnson said scanners would reduce the "hassle" for travelers and improve security.
"By making traveling through UK airports easier than ever, this new equipment will help enhance the vital role our airports play in securing the UK's position as a global hub for trade, tourism and investment", he added.
Heathrow has revealed it is spending £ 50m to deploy technology over the next few years.
This is the first airport in the UK to install equipment tested since 2017.
The airport's chief executive, John Holland-Kai, said it would make the trip "less disruptive", adding that the scanners are able to see what kind of fluid is contained in the luggage.
Scanners are ready to roll into other UK airports over the next few years.
Transport Minister Grant Shaps said the new equipment means "you will no longer be removing your socks and underwear and need to separate your liquids and remove your laptops."
He added that airlines would pay for change, not taxpayers.
The technology is already being used by US airports, including Hartsfield-Jackson in Atlanta and O & # 39; Hare in Chicago.