Mystery history of double-slit experiment with electrons

[crx]

Who did and when, the first double-slit experiment using single electrons?





(no wikipedia reference please...)

 

[JesseM]

searching "history electron double slit" on google books, I came across this book which says on p. 837:

From the 1927-8 electron crystal scattering results by Davisson (USA) and G. Thomson (UK) right up to the 1960s, classical double-slit interference of electrons remained in the "Gedankenexperiment" realm. Then Jönsson in Tübingen found a clever means to produce slit masks of unprecedented minuteness (ca 1 \mu). Figure 1 shows the result for double-slit interference of an electron beam, the first direct corroboration that the Young result still obtains.

This page says the guy's name was Claus Jönsson, and the experiment was done in 1961.

 

[JesseM]

Found another article:

http://www.physics.rutgers.edu/grad/501/links/double_slit_experiment.pdf

Fills in more details about other experiments prior to Jönsson's which laid the groundwork, and also mentions later milestones like the first double-slit experiment where only one electron was going through the slits at a time (in 1989).

 

[crx]

I was also was wondering how a single electron gun works... I was reading before about an experiment when scientists "split" an electron in liquid helium (hydrogen?) exciting it with a IR laser... They didnt say though what was the final two "entity's" electric charge...