Abstract
At low-energy nuclear physics facilities, the in-flight fragmentation method is often employed to produce radioactive ion beams. This technique often involves a stable ion beam at high intensity and a gas cell target. Since the parameters for the production reaction are usually chosen to take advantage of a large cross section of the resonance reaction, a slight change in the center-of-mass energy due to the reduced target density may significantly affect the rare isotope production rate. Therefore, to estimate the heating effect due to beam particles on the target thickness, a new and more comprehensive semi-empirical model is developed by employing a heating factor function. The estimated heating factors were consistent with experimental data, which were obtained from various reaction measurements at wide ranges of heat densities.
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Acknowledgements
This work was supported by a National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MEST) (Nos. NRF2017R1D1A1B03030019, NRF2018M7A1A1072274, and NRF2016R1A5A1013277). This work was also supported by LG Yonam Foundation (of Korea).
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Duy, N.N., Chae, K.Y., Pham, V.N.T. et al. Heating factors of gas targets for radioactive ion beam production. J Radioanal Nucl Chem 319, 33–38 (2019). https://doi.org/10.1007/s10967-018-6262-x
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DOI: https://doi.org/10.1007/s10967-018-6262-x