论文标题
iHep的超导射频腔的中温炉烘烤
Medium-temperature furnace bake of Superconducting Radio-Frequency cavities at IHEP
论文作者
论文摘要
最近，已尝试在250 C和500 C之间进行热处理，以改善FNAL和KEK的超导射频腔的质量系数。在IHEP上，还进行了使用熔炉烘烤的中等温度（Mid-T）烘烤的实验。首先，将11个1.3 GHz 1细胞腔用在小炉子处用不同的温度处理。当梯度为16 mV/m时，平均质量因子已达到3.6E10。然后，在新的大型炉子上，将中炉中部炉子在300℃下烘烤3小时。当梯度为16 mV/m时，平均质量因子已达到3.8E10。
Recently, heat treatment between 250 C and 500 C has been attempted to improve quality factor of superconducting radio-frequency cavities at FNAL and KEK. Experiments of such medium temperature (mid-T) bake with furnaces have also been carried out at IHEP. Firstly, eleven 1.3 GHz 1-cell cavities were treated with different temperatures at a small furnace. The average quality factor has reached 3.6E10 when the gradient is 16 MV/m. Then, the recipe of mid-T furnace bake at 300 C for 3 hours has been applied to six 1.3 GHz 9-cell cavities at a new big furnace. The average quality factor has reached 3.8E10 when the gradient is 16 MV/m.
