Chinese Physics C > 2008, Vol. 32 > Issue(S2): 56-58

Production cross-section of²³⁰Ra in the reaction of 60 MeV/u¹⁸O ions with²³⁸U

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Abstract：
A thick natural uranium target was bombarded with a 60 MeV/u¹⁸O beam. The neutron-rich isotope²³⁰Ra as the target residue was produced through the multinucleon transfer reaction(²³⁸U-4p-4n). The barium and radium fraction as BaCl₂precipitate were radiochemically separated first from the mixture of uranium and reaction products. Then, the radium fraction was separated from BaCl₂precipitate by using cation exchange technique. The γ-ray spectra of the Ra fraction were measured using an HPGe detector. The production cross sections of²³⁰Ra were obtained by a combination of the radiochemical separation technique and off-line γ-ray spectroscopy. The cross section of²³⁰Ra has been determined to be 66±20 μb.

References

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YANG Wei-Fan, DING Hua-Jie, YUAN Shuang-Gui, XU Yan-Bing, ZHANG Sheng-Dong and LU Xi-Ting. Production cross-section of ²³⁰Ra in the reaction of 60 MeV/u ¹⁸O ions with ²³⁸U[J]. Chinese Physics C, 2008, 32(S2): 56-58.

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Received: 2008-07-16
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Production cross-section of²³⁰Ra in the reaction of 60 MeV/u¹⁸O ions with²³⁸U

Corresponding author:YANG Wei-Fan,

Received Date:2008-07-16
Accepted Date:1900-01-01
Available Online:2008-01-03

Abstract:A thick natural uranium target was bombarded with a 60 MeV/u¹⁸O beam. The neutron-rich isotope²³⁰Ra as the target residue was produced through the multinucleon transfer reaction(²³⁸U-4p-4n). The barium and radium fraction as BaCl₂precipitate were radiochemically separated first from the mixture of uranium and reaction products. Then, the radium fraction was separated from BaCl₂precipitate by using cation exchange technique. The γ-ray spectra of the Ra fraction were measured using an HPGe detector. The production cross sections of²³⁰Ra were obtained by a combination of the radiochemical separation technique and off-line γ-ray spectroscopy. The cross section of²³⁰Ra has been determined to be 66±20 μb.