opposite the side of the wires side of the wires 22 affixed to the support 24 in one embodiment the angled rods 24 include apertures 36 for the flow of fluid into the region 38 underneath the angled rods 24 where the fluid subsequently flows through the wire screen 20 it is desired that the fluid flowing through the screen is distributed substantially evenly across the screen and flows substantially uniformly radially across the reactor bed to promote the uniform distribution of flowing fluid over the screen it is useful to limit the amount of pressure gradients over the surface of the screen to promote this the total area of the apertures 36 and the channel gaps 34 is greater than the total area of the slots 26 between the wires 22 in one embodiment the angled rods 24 are periodically attached to neighboring angled rods 24 the attachment can be by welding or other means known to those skilled in the art and provides additional strength and rigidity to the screens 20 30 it is preferred that the slots 26 have a spacing of about 0 5 times or less the typical pellet size for a typical pellet the size is about 1 6 mm 0 063 inch the slots 26 between the wires 22 will be about 0 75 mm 0 03 inch the spacing for the channel gaps 34 will be greater than the spacing for the slots 26 between the wires 22 this facilitates the removal of particulates that accumulate in the region 38 underneath the angled rods 24 the fines that pass through the slots 26 will be less than the spacing of the wires 22 and therefore having the gaps 34 with a larger spacing will allow for all the.