The proposed cyclotron gas-stopping scheme for the efficient thermalization of intense rare isotope beams is examined. Simulations expand on previous studies and expose many complications of such an apparatus arising from physical effects not accounted for properly in previous work. The previously proposed cyclotron gas-stopper geometry is found to have a near null efficiency, but extended simulations suggest that a device with a much larger pole gap could achieve a stopping efficiency approaching roughly 90% and at least a 10 times larger acceptance. However, some of the advantages that were incorrectly predicted in previous simulations for high intensity operation of this device are compromised.
Production and spectroscopic investigation of Mercury and Radon isotopes produced in complete fusion reaction and multi-nucleon transfer reaction at MASHA facility
本文利用MASHA质量分离器上的全聚变反应、中子蒸发残渣和多核子转移反应进行了汞和氡同位素的产生和光谱研究。MASHA装置安装在俄罗斯杜布纳联合核研究所(JINR)的核反应弗莱罗夫实验室(FLNR)的回旋加速器U-400 M的束线上。用全聚变反应148 Sm(40 Ar,xn)188-xHg,166 Er(40 Ar,xn)206-xRn和多核子转移反应48 Ca +242 Pu产生的同位素,以电荷态Q=+1通过MASHA装置的磁光系统,并根据它们的质荷比进行分离。对于这些同位素的检测,使用位置敏感的Si检测器。此外,获得的实验数据进行了分析和光谱研究。
A new beamline for Resonant Excitation of Beams with Electromagnetic fields and Lasers (REBEL) and Stopping and Trapping of Radioactive Isotopes for Precision Experiments (STRIPE)
From Beam to Bedside: Reinforcing Domestic Supply of $^{99}$Mo/$^{99m}$Tc using Novel High-Current D+ Cyclotrons for Compact Neutron Generation and $^{99}$Mo Production
Texas Active Target (TexAT) detector for experiments with rare isotope beams
TexAT(Texas Active Target)探测器是一种新型的有源靶时间投影室(TPC),由德克萨斯A $\&$ M大学回旋加速器研究所建造。该探测器是为原子核结构和稀有同位素束的核天体物理实验而设计的。TexAT将高度分段的时间投影室(TPC)与两层固态探测器相结合。它提供了高效率和灵活性的实验与低强度的外来光束,允许三维轨道重建的进出粒子参与核反应和衰变。
Probing the N=104 midshell region for the r process via precision mass spectrometry of neutron-rich rare-earth isotopes with the JYFLTRAP double Penning trap
Nuclear excitation functions for medical isotope production: targeted radionuclide therapy via natIr(d,x)193mPt
University of Oslo(奥斯陆大学);University of California, Berkeley(加州大学伯克利分校);Lawrence Berkeley National Laboratory(劳伦斯伯克利国家实验室);Norwegian Nuclear Research Centre(挪威核研究中心);Institute for Energy Technology(能源技术研究所);Lawrence Livermore National Laboratory(劳伦斯利弗莫尔国家实验室)