A professional who prepares fuel elements for use in nuclear reactors or radiographic measuring and detecting devices, performing any combination of following tasks. Responsibilities include:

• Strings fuel cells on wire or rod, using tweezers, safety gloves, and radiation shield or box.
• Enlarges hole in cell as necessary for precise fit, using reamers, files, scrapers, and emery cloth.
• Inspects completed assembly for flaws, such as burrs or faulty assembly.
• Stacks prescribed number of assemblies in jig and slips ring or cap over end to form single fuel unit.
• Cleans inside of metallic tubes, using ultrasonic wand, preparatory to filling with liquid fuel solution.
• Mixes radioactive solution according to specifications and pours into tube, using remote-controlled slave manipulators.
• Seals ends of tube by crimping cap or by spot welding cap to tube.
• Inspects tubes for leakage, using mass spectrometer or disintegration counter.
• Cleans exterior of tubes, using acetone and cloth or brush.
• Packs tubes in cartons or lead containers for shipment.
• Weighs completed assemblies or radioactive materials, using gram scale.
• Keeps records of materials used, shipping data, and number of units assembled.