PIN-diode diagnostics of pulsed electron beam for high repetition rate mode

5th International Congress on Energy Fluxes and Radiation Effects 2016

Egorov, Ivan^1 ; Xiao, Yu^2 ; Poloskov, Artem^1

Institute of High Technology Physics, Tomsk Polytechnic University, 2a Lenin Avenue, Tomsk

634028, Russia^1

School of Physics and Nuclear Energy Engineering, Beihang University, No.37 Xueyuan Road, Beijing

100191, China^2

关键词: Accelerating voltages;    Electron-beam parameters;    High repetition rate;    Operating parameters;    Operating principles;    Pulsed electron beams;    Reference signals;    Repetitive operations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012044/pdf
DOI  :  10.1088/1742-6596/830/1/012044

来源: IOP

【 摘 要 】

This work describes the operating principle and test results of the diagnostics for measuring the pulsed electron beam parameters under repetitive operation mode. The diagnostics is based on a PIN-diode, which is used as a bremsstrahlung detector. The signal from a PIN-diode was converted to a pseudo constant voltage signal which can be measured by a conventional voltmeter. Then the signal acquired by the voltmeter was compared with a reference signal indicating the normal operating regime of the accelerator, thus information about the shot-to-shot reproducibility of the electron beam parameters was given. The system was developed and tested for the ASTRA-M accelerator with the following operating parameters: 470 kV accelerating voltage, 120 ns beam duration and up to 50 pulses per second repetition rate.