Prof. Dr. Lembit Sihver


Prof. Lembit Sihver is the key foreign researcher and the director of the CRREAT project.

Prof. L. Sihver is a cofounder and CTO of the Cosmic Shielding Corporation (CSC) in USA, and a Professor of Subatomic and Plasma Physics at Chalmers University of Technology in Sweden.

Prof. Sihver received his MSc at KTH in Sweden, and his Licentiate and Dr. of Technology (PhD) in Nuclear Chemistry/Nuclear Physics at Uppsala University, Sweden. During his MSc, licentiate and doctoral studies, he performed accelerator-based studies of nuclear fragmentation in collaboration with the Noble Price winner Professor G. T. Seaborg at LBNL, USA. After his dissertation, Sihver worked as a Fellow at NIRS, Japan, where he developed the beam transport models for the HIMAC ion beam cancer treatment planning system. After NIRS, he stayed several years as a visiting scientist at GSI, Germany, where he continued to develop models and transport codes for ion beam cancer therapy and space radiation risk estimations.

After GSI, he worked at the management staff of Westinghouse Electric for 7 years. 2002 – 2014, he was a full Professor and the Head of Nuclear Science and Engineering at Chalmers University of Technology in Sweden. In 2015, he became a full Professor of Medical Radiation Physics with Specialization in Ion Therapy, and Head of the department of Radiation Physics, at Vienna Univ. of Technology in Austria. He was also the Head of Applied Medical Physics Research at the MedAustron ion beam therapy center in Austria. Prof. Sihver´s work is extremely international. He is an Adjunct Professor at numerous universities in the US, Canada, Europe, and Asia.

Prof. Sihver has 35 years´ experience of teaching, and international R&D in nuclear physics, nuclear chemistry, material science, space radiation transport, protection and dosimetry. He has been the PI for simulations and analyses of many space experiments and he is an extremely active and productive member of the space radiation research community. He has also been led numerous of ground-based radiation therapy and medical physics experiments. Prof. Sihver´s work in the development team of the Particle and Heavy Ion Transport code System (PHITS) is much acknowledged. His current research is performed in very close collaboration with the MIT and the UAH the USA. Prof. Sihver is an active member of many international organizations and he is a co-author of more than 155 peer-reviewed scientific publications. He has also presented his work in more than 400 abstracts and peer-reviewed international conference papers.