TY  - JOUR
AU  - Breunig, Katharina
AU  - Spahn, Ingo
AU  - Spellerberg, Stefan
AU  - Coenen, Heinrich Hubert
TI  - Production of no-carrier-added radiobromine: new nickel selenide target and optimized separation by dry distillation
JO  - Radiochimica acta
VL  - 103
IS  - 5
SN  - 2193-3405
CY  - Berlin
PB  - De @Gruyter
M1  - FZJ-2015-05089
SP  - 397-402
PY  - 2015
AB  - Nickel(II) selenide (NiSe) was investigated as a new high-current target material for cyclotron production of radiobromine, as it contains a higher amount of selenium and has a lower melting point than the widely used Cu2Se. Using a slanted target system, NiSe was successfully tested up to beam currents of 16 μA so far. With regard to the isolation of no-carrier-added (n.c.a.) radiobromide from the target material, an improved dry distillation device with high yields of 76% – 86% was developed. The implementation of a special custom-made quartz funnel decreased the dead volume of the apparatus and a quartz capillary for trapping the radiobromine allowed to concentrate the radioactivity in a small volume of less than 100 μL of 0.1 M NaOH, ready for immediate subsequent radiosyntheses. Thus, the new apparatus improves the handling of the isolation procedure and the radioactive product. The radiochemical purity of the resulting solution of n.c.a. [*Br]bromide was verified by radio-IC where no other species were detected.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000353421200008
DO  - DOI:10.1515/ract-2014-2366
UR  - https://juser.fz-juelich.de/record/202973
ER  -