Physics and simulations of a new design multistage collector inserted in an immersed-flow configuration electrostatic accelerator

Boscolo, I.; Stagno, V.; Variale, V.; Bianconi, M.

doi:10.1016/0168-9002(92)90886-9

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“…In the sense of current loss, the voltage divider resistance system in a collector is not adequate in an energy recovery system, and especially, it would be less effective in some cases [4][5][6][7][8] where the required beam current is of several mA. In our previous experiments, the collector was assembled with a laser-heated electron gun 2,3 and electrically connected to its power supply.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on an electron-beam energy recovery system using a multistage collector

Roy

Moon

Mima

et al. 1998

Review of Scientific Instruments

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Section: Introductionmentioning

confidence: 99%

Experimental study on an electron-beam energy recovery system using a multistage collector

Roy

Moon

Mima

et al. 1998

Review of Scientific Instruments

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Design study and experimental performance of a multistage electron collector

Roy

Moon

Ohkubo

et al. 1997

Review of Scientific Instruments

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A multistage electron collector has been designed for an electron-beam energy recovery system. The electrodes of the collector are cylindrical and partially conical or spiky near the axis in order to maintain a continuous field effect on the beam. The field effect of these electrodes is so efficient that a magnetic field is not necessary between the deceleration and collection gap to confine the beam on the axis. The energy recovery efficiency, 99.8%, of the collector was calculated by using a computer code with about 10 mA beam current and −75 keV. To test the performance of the collector, it has been assembled with a laser-heated electron gun and electrically connected to its power supply. The potentials of each electrode have been provided through a voltage divider of several hundred megaohms. Experimentally, the efficiency obtained was 73%–98% with a beam current of 0.67 mA.

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