Regular Article

M X-ray production cross-sections in ₇₉Au and ₈₃Bi induced by 50–300 keV protons

¹ Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, 1 Homi Bhabha Rd., Colaba, Mumbai 400005, India
² Department of Basic and Applied Sciences, Punjabi University, Patiala 147002, India
³ Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India

^a e-mail: lokesh@tifr.res.in

Received: 20 December 2017
Received in final form: 29 March 2018
Published online: 3 July 2018

Abstract

M X-ray yields of thin targets of ₇₉Au and ₈₃Bi in collisions with 50–300 keV protons have been measured. The production cross sections of M_ζ[(M₅–N₃) + (M₄–N₂)], M_αβ[(M₅–N_6,7) + (M₅–O₃) + (M₄–N₆) + (M₄–O_2,3) + (M₃–N₂)], M_γ[(M₃–N_4,5) + (M₂–N₁)], M_m1[(M₃–O_1,4,5) + (M₂–N₄) + (M₁–N_2,3)] transitions and the total X-ray production cross-section are determined and compared to other available experimental values and also to those obtained from predictions of the PWBA and the ECPSSR models. The intensity ratios of the transitions are compared with the values calculated from the ECPSSR model. All existing experimental to theoretical ratios of the cross-sections as plotted as a function of the reduced velocity show a universal behaviour.