caa a22 4500 445872365 CHVBK 20180317145516.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1140/epja/i2011-11037-0 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11037-0 Mass-yield distribution of fission products from photo-fission of natPb induced by 2.5 GeV bremsstrahlung [Elektronische Daten] [Haladhara Naik, Sarbjit Singh, Ashok Goswami, Vijay Kumar Manchanda, S. Suryanarayana, Devesh Raj, Srinivasan Ganesan, Md. Shakilur Rahman, Kyung Sook Kim, Man Woo Lee, Guinyun Kim, Moo-Hyun Cho, In Soo Ko, Won Namkung] Abstract.: The mass-yield distribution of fission products in the 2.5GeV bremsstrahlung-induced fission of natPb has been measured by using a recoil catcher and an off-line $ \gamma$ -ray spectrometric technique in the 2.5GeV electron linac at the Pohang Accelerator Laboratory. The determination of mass-yield distribution involves measurement of cumulative yields of 27 fission products and independent yields of 15 fission products in the photo-fission of natPb . It was found that the mass-yield distribution of fission products in natPb is symmetric with an average mass of 94±0.5 and a full-width at half-maximum of 55±2.0 mass units. The present data along with the literature data in the 50-85MeV bremsstrahlung-induced fission of natPb and 209Bi as well as the data at 2.5GeV for 209Bi show that the average mass of the mass-yield distributions in the bremsstrahlung-induced fission of natPb and 209Bi decreases from 102.63±0.51 at 50-85MeV to 94.5±0.5 at 2.5GeV. The full-width at half-maximum of the mass-yield distribution increases from about 21.5±1.44 mass units at 50-85MeV to 53±2 mass units at 2.5GeV. These observations in the 50MeV to 2.5GeV bremsstrahlung-induced fission of natPb and 209Bi have been explained from the point of view of increase in multi-chance fission probability with increasing excitation energy. The role of the fissility parameter (Z F 2/A F) on the full-width at half-maximum is also discussed. SIF, Springer-Verlag Berlin Heidelberg, 2011 Naik Haladhara Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Singh Sarbjit Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Goswami Ashok Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Kumar Manchanda Vijay Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Suryanarayana S. Nuclear Physics Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Raj Devesh Reactor Physics Design Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Ganesan Srinivasan Reactor Physics Design Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut Shakilur Rahman Md Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut Sook Kim Kyung Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut Woo Lee Man Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut Kim Guinyun Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut Cho Moo-Hyun Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut Soo Ko In Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut Namkung Won Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut The European Physical Journal A Springer-Verlag 47/3(2011-03-01), 1-10 1434-6001 47:3<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11037-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11037-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Naik Haladhara Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Singh Sarbjit Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Goswami Ashok Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Kumar Manchanda Vijay Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Suryanarayana S. Nuclear Physics Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Raj Devesh Reactor Physics Design Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Ganesan Srinivasan Reactor Physics Design Division, Bhabha Atomic Research Centre, 400085, Trombay, Mumbai, India aut NATIONALLICENCE 700 1- Shakilur Rahman Md Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut NATIONALLICENCE 700 1- Sook Kim Kyung Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut NATIONALLICENCE 700 1- Woo Lee Man Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut NATIONALLICENCE 700 1- Kim Guinyun Department of Physics, Kyungpook National University, 702-701, Daegu, Republic of Korea aut NATIONALLICENCE 700 1- Cho Moo-Hyun Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut NATIONALLICENCE 700 1- Soo Ko In Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut NATIONALLICENCE 700 1- Namkung Won Department of Physics, Pohang University of Science and Technology, 790-784, Pohang, Republic of Korea aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/3(2011-03-01), 1-10 1434-6001 47:3<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 445872365 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer