脉冲中子发生器高压控制系统的自动控制设计  

Design of Auto-control High-voltage Control System of Pulsed Neutron Generator

作　　者：吕俊涛[1] 

机构地区：[1]浙江大学先进控制研究所工业控制技术国家重点实验室

出　　处：《同位素》2008年第3期155-160,共6页Journal of Isotopes

摘　　要：针对传统脉冲中子发生器高压控制系统难以根据不同测井模式产生多种阳极控制时序,难以实现阳极高压、灯丝供电、靶压3者有序控制,使中子产额稳定等问题,设计了脉冲中子发生器的自动高压控制系统。该系统不仅能够实现阳极高压双爆发时序,在非弹模式下兼测得Σ及活化能谱等多种中子爆发时序,还能对中子发生器多种状态信息进行实时测量,对靶压的脉宽调制(PWM)、灯丝电流、阳极电流等进行自动控制,实现了中子产额稳定、脉冲中子全谱仪稳定正确测量的目的。It is difficult to produce multiple anode controlling time sequences under different logging mode for the high-voltage control system of the conventional pulsed neutron generator. It is also difficult realize sequential control among anode high-voltage, filament power supply and target voltage to make neutron yield stable. To these problems, an auto-control high-voltage system of neutron pulsed generator was designed. It not only can achieve anode high-voltage double blast time sequences, which can measure multiple neutron blast time sequences such as ∑, activated spectrum, etc. under inelastic scattering mode, but also can realize neutron generator real-time measurement of multi-state parameters and auto-control such as target voltage pulse width modulation（PWM）, filament current, anode current, etc. , there by it can produce stable neutron yield and realize stable and accurate measurement of the pulsed neutron full spectral loging tool.

关 键 词：脉冲中子发生器 双爆发时序 自动控制 

分 类 号：TL816[核科学技术—核技术及应用] TL822