Geiger who invented the Geiger counter (4)

I believe the answer is:
hans
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">geiger who invented the geiger counter</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hans that I've seen before include "-- Christian Andersen, writer" , "'... Christian Andersen, storyteller (4)'" , "German name" .)