高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2005年
12期
1196-1199
,共4页
电子枪%热-结构%分析%测试
電子鎗%熱-結構%分析%測試
전자창%열-결구%분석%측시
electron gun%thermal-structure%analysis%test
北京正负电子对撞机重大改造工程(BEPCⅡ)要求其直线注入器提供更高的能量和流强,为此必须设计大电流和小发射度的新电子枪,以提高正电子的产额.利用ANSYS对BEPCⅡ新电子枪的温度场分布及结构的热变形进行了模拟分析.对于电子枪复杂的内部结构形态以及能量转换方式,分析了传导传热方式对温度场的影响.在此基础上进行了温度场与结构变形的耦合分析,利用EGUN对电子枪形变前后束流光学特性进行模拟分析,并对模拟结果与试验测试结果进行了分析比较.
北京正負電子對撞機重大改造工程(BEPCⅡ)要求其直線註入器提供更高的能量和流彊,為此必鬚設計大電流和小髮射度的新電子鎗,以提高正電子的產額.利用ANSYS對BEPCⅡ新電子鎗的溫度場分佈及結構的熱變形進行瞭模擬分析.對于電子鎗複雜的內部結構形態以及能量轉換方式,分析瞭傳導傳熱方式對溫度場的影響.在此基礎上進行瞭溫度場與結構變形的耦閤分析,利用EGUN對電子鎗形變前後束流光學特性進行模擬分析,併對模擬結果與試驗測試結果進行瞭分析比較.
북경정부전자대당궤중대개조공정(BEPCⅡ)요구기직선주입기제공경고적능량화류강,위차필수설계대전류화소발사도적신전자창,이제고정전자적산액.이용ANSYS대BEPCⅡ신전자창적온도장분포급결구적열변형진행료모의분석.대우전자창복잡적내부결구형태이급능량전환방식,분석료전도전열방식대온도장적영향.재차기출상진행료온도장여결구변형적우합분석,이용EGUN대전자창형변전후속류광학특성진행모의분석,병대모의결과여시험측시결과진행료분석비교.
The Beijing Electron Positron Collider Upgrade Project (BEPC Ⅱ) requires its injector linac to upgrade the beam energy and current. Hence the high emission current and low emittance electron gun must be newly designed and fabricated to meet the requirement of high positron beam current. This paper describes the temperature field distribution in the gun and the gun deformation caused by this distribution which is performed by using ANSYS. According to the real complex structure and the energy conversion inside the electron gun, we took conduction as the main energy conversion form after deep consideration and then got the temperature field. The coincidence between the temperature field and the structural deformation is also described. In this paper, the beam optics simulated by EGUN before and after structure deformation is discussed, and the valuable results have been obtained. The test results and simulation results are analyzed and compared.
