Boron Neutron Capture Therapy (BNCT) has been used in the treatment of several types of malignant tumors, including malignant melanoma, high-grade gliomas, and advanced head and neck cancers. Theoretically, it represents a more precise radiotherapy in that it could spare normal cells while destroy malignant ones. However, its value is largely restricted by the fact that it could only be performed in the nuclear research reactors, the only neutron source at the time. In 2010, the world's first in-hospital neutron irradiator (IHNI) had been constructed in Beijing, China, and this study aims to evaluate whether IHNI has the potential to serve as an effective in-hospital neutron source for BNCT.