Cross Sections for proton induced high energy $\gamma$-ray emission   (PIGE) in reaction $^{19}$F(p,$\alpha\gamma$)$^{16}$O at incident proton   energies between 1.5 and 4 MeV
  We have studied the high energy gamma-rays produced in the reaction $^{19}$F(p,$\alpha\gamma$)$^{16}$O for incident proton energies from 1.5 to 4.0 MeV over NaF/Ag and CaF$_2$/Ag thin targets in two different sets of data. Gamma-rays were detected with a High Purity Ge detector with an angle of 130$^{o}$ with respect to the beam axis. The cross-sections for the high energy gamma-rays of 6.129, 6.915 and 7.115 MeV have been measured for the whole group between 5 and 7.2 MeV with accuracy better than 10\%. A new energy range was covered and more points are included in the cross-sections data base expanding the existing set of data. Results are in agreement with previous measurements in similar conditions. 
P. Cabanelas, J. Cruz, M. Fonseca, A. Henriques, F. Louren\c{c}o, H.   Lu\'is, J. Machado, J. Pires Ribeiro, A. S\'anchez-Be...
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