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对经中能的１８ Ｏ８＋ 离子辐照过的胸腺嘧啶 Ｎ２ Ｏ 饱和水溶液进行了研究，利用气相色谱（ Ｇ Ｃ）、气相色谱质谱联用（ Ｇ Ｃ Ｍ Ｓ）、气相色谱红外光谱联用（ Ｇ Ｃ Ｆ Ｔ Ｉ Ｒ）等仪器对辐照后的产物进行了分析、鉴别，观察到了 ５，６二氢胸腺嘧啶、５羟基５甲基乙内酰脲、５羟基（氢）６（氢）羟基胸腺嘧啶、５羟甲基尿嘧啶、顺（反）胸腺嘧啶二醇和二聚体等产物。虽然重离子主要是通过辐照水溶液中产生的羟基、氢原子等对胸腺嘧啶分子产生了作用，但与 γ射线作用机制和结果是不同的。γ射线辐照后主要产生的是二聚体产物，而重离子辐照后主要产物却是羟基加成产物。
The saturated aqueous solution of thymine N2 O irradiated by 18 O8 + ions in the medium was studied. The gas chromatogram (GC), gas chromatography-mass spectrometry (GC-MS), gas chromatography-infrared spectroscopy (G C F T I R) and other instruments on the irradiated products were analyzed and identified 5,6-dihydropyrimidine thymidine, 5-hydroxy-5-methyl-hydantoin 5 hydroxy (hydrogen) 6 (hydrogen) hydroxyl thymine, 5 hydroxymethyl uracil, cis (anti) thymine diol and other products. Although heavy ions mainly act on the thymine molecule by irradiating the hydroxyl groups and hydrogen atoms in the aqueous solution, they are different from the γ-ray mechanism and result. The major product of γ-ray irradiation is the dimer product, while the major product after heavy ion irradiation is a hydroxyl addition product.