可解释的深度学习解锁了医疗放射性同位素生产的高准确性预测
1University of Chinese Academy of Sciences, Beijing, China; European Organization for Nuclear Research (CERN), Geneva, Switzerland.
概括
我们使用贝叶斯优化的深度神经网络开发了一个人工智能模型,以准确预测必要的医疗放射性同位素生产的核反应截面. 这种方法提高了准确性和可解释性,优化了用于核医学的放射性同位素生成.
科学领域:
- 核物理 核物理 核物理
- 医疗放射性同位素生产 医疗放射性同位素生产
- 科学中的人工智能.
背景情况:
- 准确的核反应截面数据对于高效的医疗放射性同位素生产至关重要.
- 基于物理学的传统模型由于不确定性和稀少的实验数据而存在局限性.
- 优化诊断和治疗放射性同位素的生产策略是一个重大挑战.
研究的目的:
- 为 (p,2n) 反应截面开发一个高度准确的预测框架.
- 改进重要的医疗放射性同位素如Sc-47,In-111,I-124和Tm-165.5的生产策略.
- 为影响横截面预测的因素提供可解释的见解.
主要方法:
- 利用贝叶斯优化的深度神经网络进行横截面预测.
- 在国际原子能机构 (IAEA) 数据库的评估数据上进行训练和验证的模型.
- 为了模型的可解释性,使用了SHAP (夏普利添加式解释) 分析.
主要成果:
- 在预测 (p,2n) 反应截面方面取得了非常高的准确性,Pearson相关系数 (R) 为0.9997.
- 通过使用默认参数,超过了TALYS-2.0核反应代码 (R=0.9783).
- 确定了射弹能量和核结构特征作为关键预测因素.
结论:
- 数据驱动,可解释的AI模型可以克服核数据评估中的挑战.
- 开发的框架提供了一个强大的工具,用于优化循环基放射性同位素的生产.
- 这项工作通过改进放射性同位素生成,推动了核医学领域的发展.
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