A. O. Alrashdi, M. A. Alkadi, S. M. Alshammari, K. S. Alharbi, K. N. Alharbi, A. S. Aldawood, S. A. Altuijri, K. A. Alkhulayfi
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引用次数: 0
摘要
放射性同位素是现代医学的重要基石之一。它们既可用于诊断,也可用于治疗。这些放射性同位素主要通过回旋加速器等带电粒子加速器产生。在本文中,我们将介绍紧凑型高磁场超导磁体,因为它被认为是回旋加速器中最重要的部分,约占 TAAC30 回旋加速器整体设计的 60%。这台 30 MeV 回旋加速器利用磁铁产生的磁场比最近开发的传统 H 型回旋加速器高出两倍。这种磁铁也将是现代最先进的设计,不仅因为磁场更高,而且与现有的任何其他磁铁相比,体积更小、维护成本更低、重量更轻、功耗更低。这种设计还可以降低 PET 同位素生产的建造要求和运营成本,因为 PET 同位素的生产需要一个内部水靶。加速频率为 200 兆赫,预计加速功率为 2-3 千瓦,由一个紧凑型水冷固态射频放大器供电。回旋加速器和光束以完全连续的波形运行,占空比为 100%。这一设计旨在提供关键成像同位素 F-18 和 N13 的可持续供应,使小型中心无需从其他生产设施获得供应。此外,本文还介绍了使用多种分析模型对该磁体进行模拟的结果,这些结果足以证明该磁体在加速器领域具有很强的能力。
A Magnet Design of an Advanced High-Field Superconducting Cyclotron for Medical Isotope Production
Radioisotopes are one of the essential cornerstones of modern medicine. They serve both diagnostic and therapeutic purposes. These radioisotopes are mainly produced using charged particle accelerators such as cyclotrons. In this paper, we present a description of a compact high-field superconducting magnet as it is considered the most important part of the cyclotron accelerator because it is approximately 60% of the overall TAAC30 cyclotron design. This 30 MeV cyclotron uses the magnet to boost a magnetic field two times higher than the recently developed conventional H-cyclotrons. This magnet will also be a modern, state-of-the-art design not only because of the higher magnetic field, but also smaller size, lower maintenance, lighter weight, and lower power consumption in comparison with any other magnet available. This design also allows both low construction requirements with operation costs for the production of PET isotopes, which require an internal water target. The acceleration frequency is 200 MHz, and an operating power level of 2–3 kW is foreseen for the acceleration, powered by a compact water-cooled solid-state RF amplifier. The cyclotron, as well as the beam, operates as a fully continuous wave with a 100% duty cycle. This design aims to provide a sustainable supply of the critical imaging isotopes F-18 and N13, eliminating the need of supplying from other production facilities for small centers. Additionally, this paper presents simulation results of this magnet using multiple analysis models, which are sufficient and present high capability in accelerator field.
期刊介绍:
King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE).
AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.