Measurement of the cross section of the residues from the B11 -induced reaction on Y89 and

Deepak Kumar¹,

Moumita Maiti²

Abstract

The off-line γ-spectrometry was carried out after the end of bombardment (EOB) to measure the activity of the radionuclides produced in each foil and cross sections were calculated. Measured cross-sectional data were analyzed in terms of compound and precompound model calculations. Conclusions: Theoretical estimations confirmed that major production yields are mostly contributed by the compound reaction process. Preequilibrium emissions contributed at the high energy tail of the 3n channel for both the reactions. Moreover, an indirect signature of a direct reaction influence was also observed in the 90m Y production.

Incomplete fusion analysis of $^{7}$Li-induced reaction on $^{93}$Nb within 3-6.5 MeV/nucleon

“…1, 2), it is clear that xn and pxn channels are best predicted by EMPIRE with EGSM level density compare to others. Moreover, the reliability of EMPIRE has also been confirmed in many other heavy ion reactions such as 11 B + 89 Y, 11 B + 93 Nb, 7 Li + nat Mo reactions [13,20,31]. Therefore, it is also expected that amount of 93m Mo produced by the CF process via α3n channel in the 7 Li + 93 Nb reaction would be best described by the EMPIRE with EGSM similar to good reproduction of the 93m Mo and 97 Ru residues populated via α3n channel in the tightly bound 11 B-induced reaction on 89 Y and 93 Nb target, respectively.…”

“…Ignatyuk energy-dependent level density parameter, which considers the dependence of shell effects on the excitation energy, was used in the GSM and EGSM. More details on the models used in the EMPIRE code is described in the articles [20,31].…”

Preequilibrium strength in light heavy-ion induced reactions up to 7 MeV/nucleon

“…Figure 2(b) compares the measured excitation function of 97 Ru, 101 Pd, and 98 Rh produced from the 11 B+ 89 Y, 11 B+ 93 Nb [3] , and 12 C+ 89 Y reactions, respectively, with EMPIRE. The cross-sections of 97 Ru is well described by EMPIRE with GSM level density throughout the energy range, while predictions from the two other level densities (EGSM, and GC) reasonably agree with the measured data.…”

“…Fermi energy is provided by the two-body interaction between the nucleons of the composite system, and the rearrangement of energy between these nucleons takes place through the coupling between the translational momentum per nucleon of the colliding nuclei with their internal momentum [1]. The particle emissions in the PEQ process play a significant role in enhancing the production of residues in light and heavy-ion reactions [2][3][4][5][6][7][8][9][10][11][12][13][14]. The study gives an encyclopedic idea of those processes that occur during the deexcitation of nonequilibrated hot rotating nuclei created after a projectile-target interaction.…”

“…In this series, a study of complete-incomplete fusion (CF-ICF) and PEQ reactions have been carried out using the 12 C+ 197 Au reaction below 10 MeV/nucleon energy [8]. The study of low energy heavy-ion reactions has also gained our interest to disentangle various nuclear reaction phenomena such as EQ-PEQ and CF-ICF in the past few years [2,3,[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”