Can alpha, beta or gamma particles induce fission?

Gamma initiated fission is well known, being studied from the very beginning of nuclear physics (lots of work using photofission to understand energy levels in light nuclei) . A little-known feature of the Evaluated Nuclear Data Files is that it has evaluated cross sections for gammas as well as for neutrons. I use the mirror at Brookhaven.

As an example, I enter '238U' for the Target, 'g,*' for the Reaction (not noted in the suggested list to the left - sigh), and 'sig' for the Quantity, hit return, and get a listing of 5 different types of gamma cross sections. If I select the "U238(G,F),SIG" (yes, "F" for Fission, not Fluorine) entry and plot it I get: