Two-part absorber for x-ray calorimeter

Abstract

An absorber for electromagnetic calorimeters that comprises a front portion and a rear portion that are made of different materials. The front portion may comprise a first material that is resistant to blow off (which can result in spalling) and vaporization from electromagnetic radiation (e.g., X-rays) exposure. The rear portion may comprise a second material that has a higher atomic number than the first material. For example, the example, the front portion may comprise graphite and the rear portion may comprise aluminum. The front portion may comprise 1 millimeter (mm) (0.039 inches (in)) thick AXM-5Q graphite, and the rear portion may comprise 1 mm (0.039 in) thick 6061-T6 aluminum. Thus, the absorber may fit into existing calorimeter housings and absorb high energy electromagnetic radiation at a sufficient rate, without undesirable levels of blow off or vaporization.

Dependencies are inferred from the claim text.