The ornamental design for an X-ray irradiation apparatus, as shown and described.
FIG. 1 is a top, front and left side perspective view of an X-ray irradiation apparatus showing my new design;
FIG. 2 is a top, rear and right side perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof; and,
FIG. 8 is a right side elevational view thereof.
The broken lines showing the portions of the X-ray irradiation apparatus in all views shown represent unclaimed subject matter and form no part of the claimed design.
The dash-dot broken lines in FIGS. 1 to 3, 5, and 7 define the bounds of the claimed design and form no part thereof.