Research into tritium and helium-3 contents distributions in steel wall of spherical pressure vessel

来源 :Science China(Technological Sciences) | 被引量 : 0次 | 上传用户:bingshanhu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The tritium quantity stored in a steel pressure vessel decreases with time because of helium-3 decay and permeation of tritium into the steel wall of the pressure vessel.Meanwhile,the tritium quantity permeating into the steel wall also decreases with time due to helium-3 decay and diffusion in and out of the wall of tritium.Tritium and helium-3 in the steel wall will cause hydrogen and helium embrittlement of the wall material,respectively,and thereby change the carrying capacity of the vessel.Taking contemporarily both decay and permeation of tritium within the vessel and decay and diffusion of tritium having permeated into the wall into consideration,the governing equations of tritium and helium-3 contents in the wall were established and solved,and relevant formulas were deduced.Through analytical calculations,curves of tritium and helium-3 contents versus radius and time were theoretically plotted,the contents spatio-temporal distributions laws were obtained,and a law about helium-3 contents distribution in steel wall of a spherical pressure vessel was discovered which was called the law of double helium-3 content. The tritium quantity stored in a steel pressure vessel decreases with time because of helium-3 decay and permeation of tritium into the steel wall of the pressure vessel. Meanwhile, the tritium quantity permeating into the steel wall also decreases with time due to helium-3 decay and diffusion in and out of the wall of tritium. tritium and helium-3 in the steel wall will cause hydrogen and helium embrittlement of the wall material, respectively, and thereby change the carrying capacity of the vessel. Both contemporarily both decay and permeation of tritium within the vessel and decay and diffusion of tritium having permeated into the wall into consideration, the governing equations of tritium and helium-3 contents in the wall were established and solved, and relevant formulas were deduced.Through analytical calculations, curves of tritium and helium-3 contents versus radius and time were theoretically plotted, the contents spatio-temporal distributions laws were obtained, and a law about helium -3 contents distribution in steel wall of a spherical pressure vessel was discovered which was called the law of double helium-3 content.
其他文献
目的通过回顾性比较膝关节镜日间手术与非日间手术模式的卫生经济学相关指标,评价膝关节镜日间手术运行模式的卫生经济学效果。方法选择2014年8月-2015年6月行膝关节镜手术治
错颌畸形影响人的容貌美,更多的人寻求通过正畸手段矫正错牙合畸形,但是在矫治过程中出现的牙根吸收则是其常见的并发症,本文针对正畸治疗过程中出现牙根吸收的原因的研究进
科学探究既是物理课程的目标又是物理探究的重要方式。科学探究包含七个要素:提出问题,猜想与假设,制定计划和设计实验,进行实验和收集证据,分析和论证,评估,交流与合作。近
使用一些工具软件,我们可以自制“超级多功能启动”光盘,带有漂亮的菜单和丰富的工具,不同的菜单项对应不同的映像文件,极大地方便了日常维护。然而很多用户却发现某些引导
An incubation experiment with soil water content treatments of 0.15 (W1), 0.20 (W2), and 0.40 (W3) g g-1 soil was carried out for two months to investigate the
四岁那年在大西洋城,我从货场一辆火车上摔下来,头先着地,导致双目失明。现在我32岁了。我还模糊地记得阳光是多么灿烂,红色是多么鲜艳。能恢复视觉固然好,但灾难也能对人产
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
白银红鹭铝业有限责任公司是甘肃白银有色金属公司铝厂按照现代企业制度改制的公司制企业,是白银有色金属集团公司的控股子公司和核心企业之一。公司目前已形成年产铝锭10万
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
索尼凭借其出色的设计和制造实力,打造出来的X505系列笔记本电脑已经比一本普通的杂志更 小、更轻、更薄了。那么这样一款极为夸张的产品是如伺实现更轻薄的目标的呢? Sony,