A high repetition rate electron accelerator with a water Blumlein and a matching transformer

被引：5

作者：

Nashilevskiy, A. ^{[1
]}

Egorov, I ^{[1
]}

Ponomarev, D. ^{[1
]}

Ezhov, V ^{[1
]}

Kholodnaya, G. ^{[1
]}

Remnev, G. ^{[1
]}

机构：

[1] Tomsk Polytech Univ, 30 Lenin Ave, Tomsk 634050, Russia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 959卷

关键词：

Electron accelerator; Blumlein; X-ray radiation; BEAM; BREMSSTRAHLUNG; TITANIUM; SWITCHES;

D O I：

10.1016/j.nima.2020.163565

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The paper presents the principle of operation and the results of tests of an electron accelerator designed to obtain bremsstrahlung X-ray radiation. The accelerator was assembled according to the Blumlein scheme with a gas spark gap and a matching pulsed autotransformer forward of a vacuum electron diode with an explosive emission cathode. The main parameters of the accelerator were as follows: accelerating voltage 300-450 kV; half-amplitude pulse duration 80 ns; current in a vacuum diode 6-10 kA; pulse repetition rate 2 pps (can be increased up to 10 pps in a pulse burst mode of similar to 1000 pulses). The voltage and current are given for the matched mode of the Blumlein and diode operation. Pulse-to-pulse fluctuations of the diode voltage were less than 10% for 10-pps operation mode. The variation of the accelerating voltage was provided by changing the pressure in a gap and by the magnitude of the initial voltage in the power supply. The absorbed dose of over 5 mGy per pulse was obtained when constructing a metred polar converter of bremsstrahlung X-ray radiation.

引用

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