An alumina ceramic target vessel for the remote production of metallic radionuclides by in situ target dissolution.

Abstract:

INTRODUCTION:As the use of metallic radionuclides increases, so does the demand for a simple production method. In this study, we demonstrated an in situ target processing concept for automated metallic radionuclide production without the use of any robotic device. METHODS:An alumina ceramic vessel for a vertical irradiation system was designed and developed. The ceramic vessel was evaluated by the production of Zr-89 using an yttrium powder target. The irradiated Y was dissolved remotely in HCl in the ceramic vessel and transferred as a solution to a hotcell through a Teflon tube. The crude Zr-89 was then purified by an automated apparatus. The Zr-89 was eluted with 100 μL of oxalic acid (solution) as the final product. RESULTS:The ceramic vessel gave a sufficient yield of Zr-89 (57±11MBq/μAh), showed good operability, and could be reused up to 10 times. With nominal irradiation (10μA×2h) in ~90 μL, the product (~940MBq) was obtained with >99.9% radionuclidic purity. CONCLUSION:The combination of the ceramic vessel and vertical irradiation has great potential for the remote production of various metallic radionuclides.

journal_name

Nucl Med Biol

authors

Nagatsu K,Suzuki H,Fukada M,Minegishi K,Tsuji A,Fukumura T

doi

10.1016/j.nucmedbio.2012.05.010

subject

Has Abstract

pub_date

2012-11-01 00:00:00

pages

1281-5

issue

8

eissn

0969-8051

issn

1872-9614

pii

S0969-8051(12)00131-X

journal_volume

39

pub_type

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