Final Report Measuring Radiation Damage from Heavy Energetic Ions in Aluminum Funded by DOE under DE-FG02-07ER41472

محاسبات آسیب تابش به منظور شبیه سازی تابش نوترون با تابش یون و توسعه برنامه محاسباتی AMTRACK

One of the most important results of neutron irradiation on targets is that atoms are displaced from their lattice sites after that a nuclear reaction. The neutron irradiation damage is often simulated by using light/heavy ion irradiations, which prepare flexible irradiation conditions. The knowledge of primary knock-on atoms (PKA) and point defect energy distribution is the first step to simul...

Characterization of radiation damage in inert matrices for transmutation of nuclear waste

The radiation damage produced by energetic heavy ions in several ceramic oxides was characterized by different methods: thermoluminescence, optical absorption, fluorescence and electron paramagnetic resonance. Following ion irradiation, the thermoluminescence intensity of all the samples is shown to decrease. This can be related to the observed rise of the optical absorption in the whole wavele...

Carbon sequestration by patch fertilization: A comprehensive assessment using coupled physical-ecological-biogeochemical models Grant No. DE-FG02-04ER63726 DOE Office of Biological and Environmental Research FINAL REPORT

Track detection on the cells exposed to high LET heavy-ions by CR-39 plastic and terminal deoxynucleotidyl transferase (TdT)

Background: The fatal effect of ionizing radiation on cells depends on Linear Energy Transfer (LET) level. The distribution of ionizing radiation is sparse and homogeneous for low LET radiations such as X or γ, but it is dense and concentrated for high LET radiation such as heavy-ions radiation. Material and Methods: Chinese hamster ovary cells (CHO-K1) were exposed to 4 Gy Fe-ion 2000 keV/...

Measuring Space Radiation Shielding Effectiveness

Passive radiation shielding is one strategy to mitigate the problem of space radiation exposure. While space vehicles are constructed largely of aluminum, polyethylene has been demonstrated to have superior shielding characteristics for both galactic cosmic rays and solar particle events due to the high hydrogen content. A method to calculate the shielding effectiveness of a material relative t...