Abstract-Study of molecular structure change of D- and L-glucose by proton irradiation using terahertz spectroscopy

Kyumin Lee, Kiyoung Jeoung, Dong-KyuLee, Young Bin Jid Minah Seo, Yong-MinHuh, Jin-suck Suh, Seung Jae Oh,

https://www.sciencedirect.com/science/article/pii/S1350449518301373

We investigated molecular structure change of D- and L- glucose by proton beam irradiation of 7.8 MeV, using terahertz time-domain spectroscopy. Both glucose pellets exposed to the irradiation of 1013, 4×1013, 6×1013, and 8×1013 particles/cm2 of the particle’s fluence, were characterized using complex refractive indices in terahertz frequency region. We found that fingerprints of two types of glucose in terahertz frequency were disappeared above 8×1013particles/cm2. Crystallinity breaking and molecular structure change by proton irradiation was reaffirmed using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy.