| 摘要 |
An apparatus and a process are disclosed for straw tube formation utilized in manufacturing boron coated straw neutron detectors. A preferred embodiment of the process for creating a thin walled straw for use in a boron-coated straw neutron detector comprises providing foil having a boron coating on a surface, forming the coated foil into a cylindrical tube having a longitudinal seam and the boron coated surface on the inside of the cylindrical tube, and then ultrasonically welding closed the seam of the tube. Optionally, the cylindrical tube can then be drawn through a die to form a straw tube having a non-circular cross section, preferably a star-shaped cross section. |
