A joint for a work machine having a body and a base is provided. Such devices comprise a material that absorbs radiation in a quantifiable manner and a cooling agent to maintain the temperature of that material within a predetermined range, and may be used to determine the amount of energy absorbed during irradiation, for example during sterilization of a biological material. A process-pattern is both: an ordered set of short target sites that must be present within the relevant search area of a partition fragment, and a step-wise delimitation process that restricts the region of a partition fragment where the next class-specific, pre-emptive target-search takes place.