基于同步辐射的光核中子源用于能源、医学和辐射测试
Synchrotron-based Photonuclear Neutron Source for Energy, Medicine and Radiation Testing
AI总结：
SYNERGY通过分离带电粒子加速与中子产生，实现高能中子源，用于能源、医学和辐射测试领域。
摘要：
全球高能中子源的可用性受到慢化设施昂贵成本和老化研究反应堆退役的限制，而紧凑型加速器驱动源（CANS）从根本上受限于靶功率密度和热机械应力。本文介绍SYNERGY（SYnchrotron-driven NEutron source for Research, energy Generation and therapY），一种颠覆性的架构，通过将带电粒子加速与中子产生分离来克服这些瓶颈。利用存储环驱动外部光中子靶 via 同步辐射，这种拓扑分离确保靶仅与连续波（CW）光束相互作用，从而减少热机械冲击，使束流功率超过每束线200千瓦。通过系统参数分析，利用OpenMC、MCNPX和FLUKA交叉验证，我们展示了单束线中子产生率从2.8×10¹⁴ n/s到1.3×10¹⁵ n/s。具有固有多束线容量，可为多达50个独立站点提供服务，总设施强度超过6.0×10¹⁶ n/s。通过连接实验室与国家级基础设施，SYNERGY为亚临界系统、医学同位素生产以及硼中子捕获治疗提供高能、多用户平台。
英文摘要：
Neutron source availability is constrained by the declining number of research reactors and the challenging cost of spallation facilities, while compact accelerator-based sources remain limited to beam powers below 100~kW due to severe thermal loads from charged particle-target interactions. Here we demonstrate that synchrotron-driven photonuclear production overcomes this fundamental limitation through architectural decoupling: electrons circulating in a storage ring generate MeV-range synchrotron radiation that drives external neutron production targets, completely isolating targets from primary charged-particle power. This separation enables continuous-wave photon beam powers exceeding 200~kW per beamline while drastically reducing localized heating and reducing thermal shocks. Through systematic Monte Carlo optimization across three independent codes (OpenMC, MCNPX, FLUKA), we identify optimal target configurations delivering single-beamline neutron intensities of $3$--$13 \times 10^{14}$~n/s with inherent spectral tunability: low-Z targets (Be, D$_2$O) produce epithermal-to-thermal spectra for medical applications, while high-Z converters (W, U) generate fast neutrons for subcritical reactors. Multi-beamline architecture enables facility-scale outputs exceeding $6 \times 10^{16}$~n/s, being competitive with research reactors, while supporting simultaneous parallel
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