排序方式: 共有17条查询结果,搜索用时 109 毫秒
11.
This paper describes a superconducting magnet system for the China Accelerator Driven System (CADS). The magnetic field is provided by one main, two bucking and four racetrack coils. The main coil produces a central field of up to 7 T and the effective length is more than 140 mm, the two bucking coils can shield most of the fringe field, and the four racetrack superconducting coils produce the steering magnetic field. Its leakage field in the cavity zone is about 5× 10-5 T when the shielding material Niobium and cryogenic permalloy are used as the Meissner shielding and passive shielding respectively. The quench calculations and protection system are also discussed. 相似文献
12.
A superconducting focusing solenoid has been designed and developed for the China Accelerator Driven System (CADS). In order to meet the requirement of focusing strength and fringe field while minimizing the physical size of the solenoid, the novel optimizing design method based on a linear programming method was employed. In this report, the design of the solenoid including magnetic field optimization, mechanical design and quench protection will be introduced. The solenoid has been fabricated and tested. The testing results show that the central field reached 8.4 T and the stray field was lower than 50 Gauss in the cavity zone. 相似文献
13.
合成了一个新型的双核Pt(Ⅳ)配合物{[cis-Pt(NH3)2Cl(OH)2]2(4,4'-methylenedianiline)}(NO3)2(化合物1)及相应的 15N标记化合物{[cis-Pt(15NH3)2Cl(OH)2]2(4,4'-methylenedianiline)}(NO3)2(化合物15N-1).利用1H NMR和ESMS进行了结构表征,化合物15N-1的2D[1H,15N]HSQC NMR发现,该化合物在水溶液中存在同分异构体.2D[1H,15N]HSQC NMR技术跟踪了化合物15N-1与Guanosine-5'-Monophosphate(5'-GMP)和Glutathione(GSH)的反应.结果显示,5'-GMP能在0.5 h内将化合物1还原,而GSH在6 h以后才能够部分的将化合物1还原.化合物1所表现出来的反应性能将有利于提高其治疗效果和降低毒副作用. 相似文献
14.
15.
合成了一个新型的双核Pt(Ⅳ)配合物{[cis-Pt(NH3)2Cl(OH)2]2(4,4′-methylenedianiline)}(NO3)2(化合物1)及相应的 15N标记化合物{[cis-Pt( 15NH3)2Cl(OH)2]2 (4,4′-methylenedianiline)}(NO3)2(化合物 15N-1)。利用 1H NMR和ESMS进行了结构表征,化合物 15N-1的2D[ 1H, 15N]HSQC NMR发现,该化合物在水溶液中存在同分异构体。2D[ 1H, 15N]HSQC NMR技术跟踪了化合物 15N-1与Guanosine-5′-Monophosphate(5′-GMP)和Glutathione(GSH)的反应。结果显示,5′-GMP能在0.5 h内将化合物1还原,而GSH在6 h以后才能够部分的将化合物1还原。化合物1所表现出来的反应性能将有利于提高其治疗效果和降低毒副作用。 相似文献
16.
17.
The high-current superconducting proton linac is being studied for the accelerator-driven system (ADS) project undertaken by the Chinese Academy of Sciences. The injector Ⅱ will be operated at 162.5 MHz, and the proton out from the RFQ with an energy of 2.5 MeV will be accelerated to 10 MeV by two cryo-modules, which are composed of eight superconducting half wave resonance cavities and nine solenoids. In this paper, the design and beam simulation of the superconducting section of the injector Ⅱ, the acceptance calculation and a stability analysis are presented. 相似文献