This reaction is a major contribution to the nuclidic impurities in the production of 201Pb---201Tl.A total of 4 cross section data sets were found in the literature in the energy range considered. The 4 publications were selected for further evaluation. Data measured on natural targets were transformed to represent the 203Tl(p,2n)202mPb reaction only up to 27 MeV (below threshold of 205Tl (p,4n) reaction). Only data sets that where already selected for the 203Tl(p,3n)201Pb reaction where considered.
The list of related references given below is accompanied with additional information. We mention availability of data in the computerized database EXFOR (if available, unique EXFOR reference number is given). Further, we indicate a reason why a data set was excluded (reference denoted by an asterisk *).
M. Bonardi, C. Birattari, A. Salomone
201-Tl production for Medical use by (p,xn) nuclear reactions on Tl and Hg natural and enriched targets
Proc. Nuclear Data for Science and Industry , 916-918
K. H. Bockhoff editor, 1983
additional information in F. Girardi, L. Goetz, E. Sabbioni, E. Marafante, M. Merlini, E Acerbi, C. Birattari, M. Castiglioni, F. Resmini
Preparation of 203-Pb compounds for Studies on Pathways and effects of Lead Pollution ,
Int. J. Appl. Rad. Isot. , 26, 267, 1975
Exfor: D0114A. Hermanne, N. Walravens, O. Cichelli
Optimisation of isotope production by cross section determination
Proc. of Int. Conf. Nuclear Data for Science and Technology, May 1991, Julich, FRG
(ed. S. Qaim) Springer Verlag, 1992, p616
also private communication by authors
Exfor : A0494M.C. Lagunas-Solar, J.A. Jungerman, N.F. Peek, R.M. Theus
Thallium-201 yields and excitation functions for the lead activities produced by iradiation of natural thallium with 15-60MeV protons
Int. J. Appl. Rad. Isot. , 29, 159, 1978
Exfor: T0148S.M. Qaim, R. Weinreich, H. Ollig
Production of 201Tl and 203Pb via proton induced nuclear reactions on natural thallium
Int. J. Appl. Rad. Isot. 30, 85, 1979
Exfor: A0185
Yield references
Dmitriev P.P. Molin G.A.
Radioactive nuclide yields for thick target at 22 MeV proton energy
Yadernye Konstanty 44,(5) (1981) 43
Exfor: A0168
Dmitriev P.P.
Sysitematics of nuclear reaction yields for thick target at 22 MeV proton energy
Yadernye Konstanty 2 (1983) 57
Exfor: A0195
The data from papers where experimental numerical values were available (4 papers), are collected in Fig. 5.1.15a. All the 4 works were selected for further evaluation.
No calculations were performed as the codes only give access to total cross sections and not to separate isomers.
Cross sections were calculated by Padé fit with 20 parameters. The results are compared to selected experimental data in Fig. 5.1.15b. The best approximation was judged to be the Padé 1 fit. Recommended cross sections are compared with selected experimental data, including their error bars, in Fig. 5.1.15c. Yields calculated from the recommended cross sections are presented in Fig. 5.1.15d. The corresponding numerical values for recommended cross sections and yields are tabulated in Tab. 5.1.15a and Tab. 5.1.15b, respectively.
Last updated: December 2004.