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多丝正比室的逃逸门技术 被引量:2
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作者 沈长铨 沈培若 +1 位作者 叶宗男 李小南 《高能物理与核物理》 SCIE CAS CSCD 北大核心 1989年第5期385-392,共8页
为进行空间硬X射线天文观测,研制了一个高空气球载的高压氙(Xe)多丝正比室硬X射线谱仪,采用了逃逸门技术.本文介绍逃逸门技术的原理,并描述该谱仪实现逃逸门技术的方法及实际性能.该谱仪在87年高空气球飞行观测中获得了有效的实验数据.
关键词 多丝正比室 逃逸门技术 天文观测
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球载大面积充氙多丝正比室
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作者 李延国 李惕碚 《核电子学与探测技术》 CAS CSCD 北大核心 2003年第6期502-506,共5页
介绍球载大面积硬X射线望远镜HAPI-4高气压充氙多丝正比室的性能和逃逸门技术。多次球载实验和实验室进行的一系列测试表明该探测器具有较好的能量分辨率和观测灵敏度。充304kPaXe,14和122keV能量分辨率分别为20%和8%。采用逃逸门技术,5... 介绍球载大面积硬X射线望远镜HAPI-4高气压充氙多丝正比室的性能和逃逸门技术。多次球载实验和实验室进行的一系列测试表明该探测器具有较好的能量分辨率和观测灵敏度。充304kPaXe,14和122keV能量分辨率分别为20%和8%。采用逃逸门技术,59.5keV探测效率约38%,35keV能量分辨率约5%,59.5keV能量分辨率约7.5%。在39km气球平飞高度,本底计数8×10-4/(cm2·s·keV) 展开更多
关键词 球载大面积硬X射线望远镜 充氙多丝正比室 逃逸门技术 探测器 分辨率 灵敏度 天体观测
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空间硬X射线谱仪数据获取系统
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作者 叶宗男 沈长铨 《核电子学与探测技术》 CAS CSCD 北大核心 1989年第1期54-58,共5页
随着空间时间的到来,人类已超越了大气层的屏障,开始了全波段天文观测。X射线、γ射线天文观测十分活跃,硕果累累。为了用高空技术气球这一有效运载工具进行空间硬X射线天文观测,我们研制了一个球载硬X射线谱仪。其主探测器是采用逃逸... 随着空间时间的到来,人类已超越了大气层的屏障,开始了全波段天文观测。X射线、γ射线天文观测十分活跃,硕果累累。为了用高空技术气球这一有效运载工具进行空间硬X射线天文观测,我们研制了一个球载硬X射线谱仪。其主探测器是采用逃逸门技术的高气压氙多丝正比室,可探测15—200keV能区的硬X射线能谱。其数据获取系统的球载部分配合专用电子学电路对探测器信号实现逃逸门判选和处理,还对谱仪工作状况及环境的监测量进行模数变换,并把经过初步处理的数据以一定格式编排,经二次频率调制后由发射机发回地面。 由于该系统的球载部分工作于高空低气压、高辐射本底和强噪声的恶劣环境。 展开更多
关键词 空间硬X射线 X射线谱仪 逃逸门
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Study on the Escape of the Portuguese Leasing in Macao from Chinese Criminal Law and the Governance by the Government of the Qing Dynasty
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作者 Yuanmeng SHI 《International Journal of Technology Management》 2015年第11期93-95,共3页
After the Portuguese leased in Macao in the mid-period of Ming Dynasty, the Portuguese officials here were asked to comply with the law of China more than once. To the Qing dynasty, the Portuguese still stubbornly ref... After the Portuguese leased in Macao in the mid-period of Ming Dynasty, the Portuguese officials here were asked to comply with the law of China more than once. To the Qing dynasty, the Portuguese still stubbornly refused to obey the law of China and often escaped from Chinese criminal law using briberies. In the case about Huiqian CHEN and the processing in the end of 1743, the fact that the Portuguese often escaped from the law of China was changed, and the principle of the Chinese judicial officials about processing the murders about Chinese killed by foreigners was explicitly defined. In this principle, Chinese significant compromises and concessions to the Portuguese were also included, but the criminal jurisdiction was ultimately controlled by the Government of the Qing Dynasty. Thus, the foreign-related criminal procedures conforming to foreign conditions were revised by the government of the Qing Dynasty according to the actual circumstances of Macao. However, the foreign-related criminal procedures revised by the government of the Qing Dynasty were not honestly observed by the Portuguese. After several major cases occurred in Macao, security rules and regulations were further issued by the government of the Qing Dynasty, in which the judicial control power of the government of the Qing Dynasty in Macao was unequivocally stated. 展开更多
关键词 MACAO the Portuguese the Government of the Qing Dynasty Criminal Procedures Judicial Control Power
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