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Remote handling systems for the ISAC and ARIEL high-power fission and spallation ISOL target facilities at TRIUMF
Nuclear Engineering and Technology ( IF 2.6 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.net.2020.09.024
Grant Minor , Jason Kapalka , Chad Fisher , William Paley , Kevin Chen , Maxim Kinakin , Isaac Earle , Bevan Moss , Pierre Bricault , Alexander Gottberg

Abstract TRIUMF, Canada’s particle accelerator centre, is constructing a new high-power ISOL (Isotope Separation On-Line) facility called ARIEL (Advanced Rare IsotopE Laboratory). Thick porous targets will be bombarded with up to 48 kW of 480 MeV protons from TRIUMF’s cyclotron, or up to 100 kW of 30 MeV electrons from a new e-linac, to produce short-lived radioisotopes for a variety of applications, including nuclear astrophysics, fundamental nuclear structure and nuclear medicine. For efficient release of radioisotopes, the targets are heated to temperatures approaching 2000 °C, and are exposed to GSv/h level radiation fields resulting from intended fissions and spallations. Due to these conditions, the operational life for each target is only about five weeks, calling for frequent remote target exchanges to limit downtime. A few days after irradiation, the targets have a residual radiation field producing a dose rate on the order of 10 Sv/h at 1 m, requiring several years of decay prior to shipment to a national disposal facility. TRIUMF is installing new remote handling infrastructure dedicated to ARIEL, including hot cells and a remote handling crane. The system design applies learnings from multiple existing facilities, including CERN-ISOLDE, GANIL-SPIRAL II as well as TRIUMF’s ISAC (Isotope Separator and ACcelerator).

中文翻译:

TRIUMF 的 ISAC 和 ARIEL 高功率裂变和散裂 ISOL 目标设施的远程处理系统

摘要 加拿大粒子加速器中心 TRUMF 正在建造一个新的高功率 ISOL(在线同位素分离)设施,称为 ARIEL(高级稀有同位素实验室)。厚多孔靶将受到来自 TRUMF 回旋加速器的高达 48 kW 480 MeV 质子的轰击,或来自新型 e-linac 的高达 100 kW 30 MeV 电子的轰击,以产生用于各种应用的短寿命放射性同位素,包括核天体物理学,基本核结构和核医学。为了有效释放放射性同位素,目标被加热到接近 2000 °C 的温度,并暴露于由预期裂变和散裂产生的 GSv/h 级辐射场。由于这些条件,每个目标的运行寿命只有大约五周,需要频繁的远程目标交换以限制停机时间。辐照几天后,目标具有残余辐射场,在 1 m 处产生的剂量率约为 10 Sv/h,在运送到国家处置设施之前需要几年的衰变。TRUMF 正在为 ARIEL 安装新的远程搬运基础设施,包括热室和远程搬运起重机。该系统设计应用了来自多个现有设施的经验,包括 CERN-ISOLDE、GANIL-SPIRAL II 以及 TRIUMF 的 ISAC(同位素分离器和加速器)。
更新日期:2020-09-01
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