Radio, soft X-ray, and EUV imaging observations of the solar source. The left (right) panels are for injection #2 (#5). Top: STEREO-A Waves radio spectrograms and GOES-16 X-ray fluxes at 1.0−8.0 Å (white curve). Color-coding in the radio spectrograms represents E intensity (dB > background). The right axis labels B, C, and M mark flare classes. The vertical dashed black lines mark the times of images in the middle and bottom panels. Middle: SDO AIA 211 Å 1-min running-difference images. The heliographic longitude-latitude grid has a spacing of 15°. The arrows mark a jet (left panel), as well as jet-like and wider eruptions (right panel). Line segments mark the rough estimate of the projected size of the source of the jet (right panel) and the eruption (left panel) at the time of the 211 Å intensity maximum. Bottom panels: SDO AIA 211 Å corresponds to green, and the SDO HMI line-of-sight magnetic field (scaled to ±200 G) corresponds to black and red tinted colors. Furthermore, N1 and N2 mark negative and P positive polarity patches in the ³He-rich SEP source. Animations of AIA 211 Å 12 s direct images corresponding to the bottom panels are available online.