Tr. Weatherford et al., SINGLE EVENT INDUCED CHARGE-TRANSPORT MODELING OF GAAS-MESFETS, IEEE transactions on nuclear science, 40(6), 1993, pp. 1867-1871
Two-dimensional computer simulations of charge collection phenomena in
GaAs MESFETs have been performed for alpha and laser ionization. In b
oth cases more charge is collected than is created by the ionizing eve
nt. The simulations indicate that a bipolar transport mechanism (t < 6
0 ps) and a channel modulation mechanism (t > 40 ps) are responsible f
or this enhanced charge collection.