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Industrial material processing electron linear accelerator

  • US 5,401,973 A
  • Filed: 12/04/1992
  • Issued: 03/28/1995
  • Est. Priority Date: 12/04/1992
  • Status: Expired due to Term
First Claim
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1. An electron linear accelerator for use in industrial material processing, comprising:

  • an elongated, resonant, electron accelerator structure defining a linear electron flow path and having an electron injection end and an electron exit end, means at said injection end for producing and delivering one or more streams of electrons to said electron injection end of said accelerator structure during pulses of predetermined duration and of predetermined repetition rate, said accelerator structure being comprised of a plurality of axially coupled microwave cavities constructed to resonate in a π

    /2 mode and including;

    a graded-β

    capture section at said injection end of said accelerator structure for receiving and accelerating electrons in said one or more streams of electrons;

    a β



    1 section exit section at the end of said accelerator structure remote from said capture section for discharging accelerated streams of electrons from said accelerator structure; and

    an rf coupling section intermediate said capture section and said exit section for coupling rf energy into said accelerator structure;

    an rf system including an rf source for converting electrical power to rf power and a transmission conduit for delivering rf power to said coupling section of said accelerator structure;

    means disposed at said exit end of said accelerator structure for receiving said one or more streams of electrons and scanning said streams of electrons over a predetermined product area; and

    control means for controlling said scanning means and synchronously energizing said stream producing means and said rf source during said pulses at said repetition rate.

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