1. Ti, a candidate for positron emission tomography: Study of the cyclotron production.
- Author
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Sadeghi, M., Enferadi, M., and Nadi, H.
- Subjects
- *
POSITRON emission tomography , *CYCLOTRONS , *NUCLEAR reactions , *NUCLEAR excitation , *TARGETING (Nuclear strategy) , *SCANDIUM ,TITANIUM isotopes - Abstract
The nuclear-physical properties of Ti (half-life 3.08 h, 85% β-decay, 15% electron capture, daughter isotope Sc) make it suitable for positron emission tomography. Ti can be produced at a small cyclotron in a high yield, 450 MBq μA h, using the Sc( p,n)Ti nuclear reaction on a natural scandium target. The excitation functions for the Sc( p,n)Ti reaction were calculated by ALICE/91, ALICE/ASH, and TALYS-1.2 codes and compared to the existing data. Deposition of ScO on a Cu substrate was carried out by two sedimentation methods for the production of Ti, and a simple method for radiochemical separation of radiotitanium was suggested. The targets were examined by SEM and subjected to thermal shock test. The optimal thicknesses of target was substantiated, and the production yield for the Sc( p,n)Ti reaction was calculated. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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