| 摘要 |
<p>There are provided an anode target (10) which generates X-rays due to electrons e being incident, an emitter source (22) which emits electrons e to be incident into the anode target (10), a ring-shaped recoil electron capturing structure (30) which surrounds an orbit of electrons e heading from the emitter source (22) toward the anode target (10), and captures electrons e emitted from the emitter source (22) and recoiled on the anode target (10), and a vacuum envelop (40) which keeps at least a periphery of the anode target (10), the emitter source (22), and the recoil electron capturing structure (30) at a predetermined degree of vacuum, and the recoil electron capturing structure (30) has a first member (31) formed from strengthened copper which is exposed to the inside of the recoil electron capturing structure (30), and a second member (32) formed from copper which is disposed at the outside in the radial direction of the first member (31).</p> |
