摘要
采用电沉积法将Ｔｅ电沉积在以Ｎｉ为底衬的Ｃｕ靶托上，制备出了质子回旋加速器ＣＹＣＬＯＮＥ－３０用碲靶，用以生产放射性医用同位素１２３Ｉ。研究了电流密度、电沉积时间、温度、电沉积溶液中碲的质量浓度（以ＴｅＯ２计）、碱度等工艺条件对碲靶质量的影响。推荐最佳工艺条件为：电沉积液介质浓度ｃ（ＫＯＨ）＝１ｍｏｌ／ｌ；ρ（ＴｅＯ２＝５５－６５ｍｇ／ｍｌ；电流密度Ｊ＝１０－１２ＭＡ／ｃｍ２；温度Ｔ＝１８－３０℃；电沉积时间ｔ约为１ｈ。在此工艺条件下制备的碲靶的质量厚度为１４－２０ｍｇ／ｃｍ２，沉积层质地致密、均匀、无斑点，附着力强。
The tellurium target used for producting medical radioisotope 123I in Cyclontron-30 is prepared by electro-deposition method. The main technological conditions of electro-deposition such as concentraction of medium c (KOH), mass concentration of tellurium ρ (TeO2), current density J, time t and temperature T of electro - deposition, ect, are researched experimentally. The suggested technological conditions are as follows: c (KOH) = 1 mol/l, ρ(TeO2) = 55-65 mg/ml, J = 10- 12 mA/cm2, t≈1 h and T = 18 - 30℃. The mass thickeness of prepared Te target is in the range of 14 - 20 mg/cm2, the deposited foil is firm, and the deposited grain is uniformly distributed without maculae.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1996年第3期249-252,共4页
Atomic Energy Science and Technology
关键词
碲靶制备
电沉积法
工艺条件
回旋加速器
Preparation of tellurium target Electro-deposition methed Technological condition
