| Paper | Title | Page |
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WEPPC058 |
Irradiation of an Internal Cylindrical Surface Using | |
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| Experiments on the propagation of an annular electron beam from the accelerator in the decreased magnetic field of a solenoid were carried out. The operating conditions were the following: electron energy of ~80 keV, pulse duration of 15 mks, beam current of ~60 A. The current of a beam hitting upon the internal cylindrical surface was measured by means of electrodes in the form of pipe sections having an internal diameter of 63 mm and a total length of 150 mm. It has been established that roughly 70% of the beam are "deposited" at the internal pipe surface of 30 mm long when the gradient of magnetic field decrease equals to ~100 Oe. The irradiation region along the system axis was changed by controlling the amplitude and the distribution of magnetic field decrease. The calculation of the beam energy spectrum (by the current oscillograms along the system axis and cathode voltage) has shown that about 75% of beam electrons take place in the range ± 8% of the minimum energy. | ||
| WEPPC059 | Electron Beam Image Visual Monitoring | 563 |
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| The system for visual monitoring of the electron beam features was developed and implemented. This system is based on registration of optical radiation, which is generated under object-beam interaction. The system comprises image transferring channel, remote-controlled digital photo-camera, connected with PC by USB-interface as well as proper software. The images obtained give information on the beam density distribution over the surface of the object being irradiated. 100 KeV and 10 MeV electron beams was researched. | ||