原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
7期
1269-1273
,共5页
郝朋飞%吴志芳%王振涛%沈毅雄
郝朋飛%吳誌芳%王振濤%瀋毅雄
학붕비%오지방%왕진도%침의웅
凸度仪%高压充气电离室%电场分布模拟%ElecNet
凸度儀%高壓充氣電離室%電場分佈模擬%ElecNet
철도의%고압충기전리실%전장분포모의%ElecNet
profile gauge%high gas-pressurized ionization chamber%electric field distri-bution simulation%ElecNet
凸度仪对探测器响应时间有很高的要求,对于高压充气电离室探测器,电离室内电场分布是决定其响应时间的一个重要因素。本文通过有限元电场模拟软件ElecNet对凸度仪电离室内部的电场分布进行了仿真,根据仿真结果从理论上分析了高压充气电离室电场分布对其输出波形信号的影响,解释了出现“拖尾”现象的机理,为凸度仪电离室的设计和改进提供了指导。
凸度儀對探測器響應時間有很高的要求,對于高壓充氣電離室探測器,電離室內電場分佈是決定其響應時間的一箇重要因素。本文通過有限元電場模擬軟件ElecNet對凸度儀電離室內部的電場分佈進行瞭倣真,根據倣真結果從理論上分析瞭高壓充氣電離室電場分佈對其輸齣波形信號的影響,解釋瞭齣現“拖尾”現象的機理,為凸度儀電離室的設計和改進提供瞭指導。
철도의대탐측기향응시간유흔고적요구,대우고압충기전리실탐측기,전리실내전장분포시결정기향응시간적일개중요인소。본문통과유한원전장모의연건ElecNet대철도의전리실내부적전장분포진행료방진,근거방진결과종이론상분석료고압충기전리실전장분포대기수출파형신호적영향,해석료출현“타미”현상적궤리,위철도의전리실적설계화개진제공료지도。
There are high requirements to the time response of detector in profile gauge . For the high gas-pressurized ionization chamber detector ,the electric field distribution in chamber is one of the important factors to determine its response time .The electric field distribution in the ionization chamber was simulated using the electric field simula-tion software ElecNet which was based on finite element analysis methods .Influence of the electric field distribution in ionization chamber on its output waveform signal was analyzed typically ,the mechanism of trailing signal was also explained according to the simulation results .The research results provid guidance for the design and improvement of ionization chamber in profile gauge .