【摘要】 利用回旋加速器内束流装置上引出的α粒子（流强１５０～２００μＡ，能量２４～２５ＭｅＶ）去轰击用铜作衬底的镀金靶头，在金的镀层上发生^１９７Ａｕ（α，２ｎ）^１９９Ｔｌ核反应，产生^１９９Ｔｌ。研究了从铜、金和镓中分离铊的条件。^１９９Ｔｌ与^２００ｔｌ的活度分别为２．３×１０^５Ｂｑ即和７．１×１０^２Ｂｑ，即^２００Ｔｌ的活度为^１９９Ｔｌ活度的０．３１％。用^１９９ＴｌＣｌ注射液进行了动物体内的心肌显像实验与人体内的心肌显像实验，均取得了满意的结果。更多还原

【Abstract】 The separation conditions of ￣(199)T1 from Cu , Au and Ga by reaction ￣(197)Au,2n)￣(199)T1on the internal target installation of cyclotron are studied. The α-particle energy is selected in the rangeof 24～25MeV. The cumulative charge quantities of-paritcle beams bombarding the gold target arein the range of 1200～1500μA· h respectively. The radiochemical separation of ￣(199)T1 is carried outwith isopropy1 ether extraction and anion exchange from the irradiated gold targets. The radioactivitiesof ￣(199)T1 and ￣(200)T1 are 2.3×10￣5 Bq and 7.1×10￣2 Bq respectively and ￣(200)T1 is.31%of the totalradioactivity. The impurity elements contained in 1 mL of ￣(199)T1IC1 injection solution are Au<0.2μg,Cu< 0.04μg, Fe=0.166μg and Ga=0.00μg.The ￣(199)T1C1 injection solution has been used in themyocardial visulization experiments of animal body and human body and good results have beenobtained.更多还原