Experimental evidence for temperature effect on energy loss of low-energy D＋ in liquid lithium

• Published in: Chinese physics C 2015-08, Vol.39 (8), p.32-35
• Main Author: 方开洪 邹建新 刘东东 赵江涛 王铁山
• Format: Article
• Language: English
• Subjects: 制动功率; 实验证据; 液态锂; 温度效应; 激发函数; 粒子产生; 能量损失; 轰击能量
• ISSN: 1674-1137; 0254-3052
• DOI: 10.1088/1674-1137/39/8/084001

In order to investigate the temperature effect on the stopping power of liquid lithium material for keV D＋, the excitation functions of the α-particle yields for the 6Li（d,α）4He reaction in liquid lithium （495-600 K） have been measured for the bombarding energies from 50 to 70 keV by 2.5 keV steps. The observations show that the thick-target α-yield increases statistically as lithium temperature increases. These phenomena revealed that the only possible reason is a temperature effect on the stopping power, i.e., increasing temperature resulting in a lower stopping power. As the lithium temperature increased from 495 to 600 K, the energy loss of deuterons decreased about 6.7% in the energy region of E〈70 keV.