串列升级工程实验中,需要质量厚度约为60μg/cm2的自支撑U型C膜作为剥离膜,用于对串列升级工程部实验型回旋加速器中的束流进行剥离引出。自支撑U型C剥离膜制备方法如下。首先,采用碳弧法,以甜菜碱作为脱膜剂,在玻璃基衬上沉积约60μg/cm2的C膜,制备参数列于表1。其次,为了获得U型靶,需在沉积好的C膜上涂1层火棉胶,待C膜晾干后,放入水 In the tandem upgrading experiment, a self-supported U-shaped C film with a mass thickness of about 60 μg / cm 2 is required as a peeling film for stripping the beam in the experimental cyclotron of the tandem upgrading engineering department. Self-supporting U-type C release film is prepared as follows. First, a C film of about 60 μg / cm 2 was deposited on a glass substrate using a carbon arc method using betaine as a release agent. The preparation parameters are shown in Table 1. Second, in order to obtain the U-shaped target, a layer of collodion must be coated on the deposited C film. After the C film is dried, water