How do i reset Scale on Points of a curve?

Hi guys, how do i reset scale on a point that I Alt+S’d in a curve i’d like to put it back to it’s original scale.

like the CTRL+T is Tilt , to reset Tilt ALT+T
ALT+S is Scale, to reset Scale ________?

select the points for which you want to set the radius, and then search for “set curve radius”, type in 1 and press enter.