Hard X-ray and Gamma-rays measurements provide strong diagnostics to study particle acceleration during the magnetic energy conversion process in solar flares. I will outline potential direction of future instrument designs to finally reveal the physics of solar flares.

Samuel KRUCKER教授的主要科研兴趣集中于等离子体天体物理学问题，尤其侧重从观测与实验角度研究太阳和日球层物理。过去三十年间，他持续探索日冕加热机制、磁能转化过程、高能粒子加速及其从加速区逃逸至行星际空间的物理规律。在苏黎世联邦理工学院获得博士学位后，他于加州大学伯克利分校空间科学实验室工作二十八载（1997-2025）。自2010年起，他同时受聘为瑞士西北应用科学大学教研人员。在伯克利期间，他曾任NASA小型探测器（SMEX）任务"拉马第高能太阳光谱成像探测器"（RHESSI）及"聚焦式硬X射线成像太阳探测器"（FOXSI）探空火箭计划的首席研究员。目前，Samuel Krucker教授在瑞士西北应用科学大学负责领导欧空局"太阳轨道器"任务中的X射线成像谱仪-望远镜（STIX）项目。

The main scientific interests of prof. Samuel KRUCKER  are in problems of plasma astrophysics, especially solar and heliospheric physics, from an observational and experimental point of view. Over the past 30 years, he has been working on problems of how the solar corona is heated, how magnetic energy is converted, how energetic particles are accelerated and how they escape from acceleration sites into interplanetary space. After his PhD at ETH Zürich, he worked at the Space Science Laboratory of the UC Berkeley for 28 years (1997-2025). As of 2010, he has been a faculty member of the University of Applied Sciences Northwestern Switzerland (FHNW). At UC Berkeley, he  has been Principal Investigator (PI) of a NASA Small Explorer (SMEX) mission RHESSI and the sounding rocket program called FOXSI. At FHNW, he is currently leading the Spectrometer/Telescope for Imaging X-rays (STIX) on ESA’s Solar Orbiter.