Rickard Persson

Charged particle radiography

A multistep parallax-free X-ray imaging counter

Parallax-free, high-accuracy gaseous detectors for X-ray and VUV localization

An X-ray imaging proportional chamber incorporating a radial field drift chamber

Tune-up of the LAMPF high-energy pion channel

A multi-wire proportional counter system for use in low, medium and high energy physics