本文采用了自主研发的THGEM探测器,其具有双膜结构,64路直流读出电子学等特点。采用该THGEM探测器在K荧光装置上,开展了对15~70 ke V内多能量点X射线的探测实验工作;结果显示该THGEM探测器对宽能区、高注量(剂量当量)的X射线具有良好线...本文采用了自主研发的THGEM探测器,其具有双膜结构,64路直流读出电子学等特点。采用该THGEM探测器在K荧光装置上,开展了对15~70 ke V内多能量点X射线的探测实验工作;结果显示该THGEM探测器对宽能区、高注量(剂量当量)的X射线具有良好线性响应,并分析了影响探测效率的因素。展开更多
目的分析冷刀宫腔镜技术在宫腔胚物残留(retained products of conception,RPOC)治疗中的近期临床疗效。方法选取2019—2021年南昌市第一医院收治的宫腔RPOC患者114例,根据不同手术方式将患者分为宫腔镜组56例和普通清宫组58例。比较2...目的分析冷刀宫腔镜技术在宫腔胚物残留(retained products of conception,RPOC)治疗中的近期临床疗效。方法选取2019—2021年南昌市第一医院收治的宫腔RPOC患者114例,根据不同手术方式将患者分为宫腔镜组56例和普通清宫组58例。比较2组一般资料(包括年龄、残留胚物大小、术前清宫失败次数、既往孕产情况、既往剖宫产情况)、手术相关情况(包括病程持续时间、住院时间、术前临床症状、术中出血量)、术后恢复情况(包括术后月经复潮时间、超2周阴道出血未净情况、术后月经量的变化)和术后并发症发生情况(包括再次宫腔残留、术后感染、宫腔粘连等情况)。结果2组残留胚物大小、既往孕产情况比较差异无统计学意义(P>0.05)。宫腔镜组患者的病程、住院时间明显长于普通清宫组(P<0.05),术中出血量少于普通清宫组(P<0.001)。普通清宫组术后月经减少患者、月经复潮时间长患者均多于宫腔镜组(P<0.001)。宫腔镜组术后并发症发生率低于普通清宫组(P<0.05)。结论宫腔镜下妊娠组织清除术更具优势,可减少再残留,提高手术成功率,减少术中术后并发症。展开更多
The working stability of thinner-thick gaseous electron multipliers （THGEMs）, which have been developed by the University of the Chinese Academy of Sciences and the Second Academy of China＇s Aerospace Science and I...The working stability of thinner-thick gaseous electron multipliers （THGEMs）, which have been developed by the University of the Chinese Academy of Sciences and the Second Academy of China＇s Aerospace Science and Industry Corporation, is studied with an 8 keV x-ray on a Cu target. Gains of about 103–104 are achieved with a single board in Ar：iC4H10 （97：3）. Environmental factors, such as pressure, temperature and humidity are considered. The thinner-THGEMs are shown to perform stably over two months of studies.展开更多
文摘目的分析冷刀宫腔镜技术在宫腔胚物残留(retained products of conception,RPOC)治疗中的近期临床疗效。方法选取2019—2021年南昌市第一医院收治的宫腔RPOC患者114例,根据不同手术方式将患者分为宫腔镜组56例和普通清宫组58例。比较2组一般资料(包括年龄、残留胚物大小、术前清宫失败次数、既往孕产情况、既往剖宫产情况)、手术相关情况(包括病程持续时间、住院时间、术前临床症状、术中出血量)、术后恢复情况(包括术后月经复潮时间、超2周阴道出血未净情况、术后月经量的变化)和术后并发症发生情况(包括再次宫腔残留、术后感染、宫腔粘连等情况)。结果2组残留胚物大小、既往孕产情况比较差异无统计学意义(P>0.05)。宫腔镜组患者的病程、住院时间明显长于普通清宫组(P<0.05),术中出血量少于普通清宫组(P<0.001)。普通清宫组术后月经减少患者、月经复潮时间长患者均多于宫腔镜组(P<0.001)。宫腔镜组术后并发症发生率低于普通清宫组(P<0.05)。结论宫腔镜下妊娠组织清除术更具优势,可减少再残留,提高手术成功率,减少术中术后并发症。
基金Supported by the National Natural Science Foundation of China under Grant Nos 11205240 and 11265003, and the China Postdoctoral Science Foundation under Grant No 2012M510587.
文摘The working stability of thinner-thick gaseous electron multipliers （THGEMs）, which have been developed by the University of the Chinese Academy of Sciences and the Second Academy of China＇s Aerospace Science and Industry Corporation, is studied with an 8 keV x-ray on a Cu target. Gains of about 103–104 are achieved with a single board in Ar：iC4H10 （97：3）. Environmental factors, such as pressure, temperature and humidity are considered. The thinner-THGEMs are shown to perform stably over two months of studies.
