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https://www.ias.ac.in/article/fulltext/pram/072/02/0335-0341

Gallium-68; excitation function; cyclotron; cross-section.

Gallium-68 ($T_{1/2} = 68$ min, $I_{\beta+} = 89%$) is an important positron-emitting radionuclide for positron emission tomography and used in nuclear medicine for diagnosing tumours. This study gives a suitable reaction to produce ⁶⁸Ga. Gallium-68 excitation function via ⁶⁸Zn$(p, n)$ ⁶⁸Ga, ⁶⁸Zn$(d, 2n)$ ⁶⁸Ga, ⁷⁰Zn$(p, 3n)$ ⁶⁸Ga and ⁶⁵Cu$(\alpha, n)$ ⁶⁸Ga reactions were calculated by ALICE-91 and TALYS-1.0 codes. The calculated excitation function of ⁶⁸Zn$(p, n)$ ⁶⁸Ga reaction was compared with the reported measurement and evaluations. Requisite thickness of the targets was obtained by SRIM code for each reaction. The ⁶⁸Ga production yield was evaluated using excitation function and stopping power.

Mahdi Sadeghi¹ Tayeb Kakavand² Leila Mokhtari² Zohreh Gholamzadeh¹

1. Agricultural, Medical & Industrial Research School, P.O. Box 31485-498, Karaj, Iran
2. Physics Faculty, Zanjan University, P.O. Box 451-313, Zanjan, Iran

Published

February 2009

Manuscript received

12 July 2008

Manuscript revised

22 September 2008

Accepted

30 September 2008