A filter for separating particles from a cooling liquid in a nuclear power plant, a filter arrangement and a fuel assembly

A filter for separating particles from a cooling liquid in a nuclear power plant, wherein the filter comprises:

• a filter part arranged in a filter frame configured to cooperate with a mounting part of a component of the nuclear power plant for mounting of the filter in the component,
• wherein the filter frame of the filter comprises at least one protruding part and/or at least one recess extending along an extension direction substantially perpendicular to a plane extending along a surface portion of an outer surface of the filter frame,
• wherein the at least one protruding part and/or at least one recess are arranged along the entire circumference of the filter frame along an outer edge of the filter frame, and wherein the at least one protruding part and/or at least one recess are arranged to create an obstacle for said particles flowing between the filter frame and the mounting part.