Measurement of photo-fission yields and photo-neutron cross-sections in 209Bi with 50 and 65 MeV bremsstrahlung

被引：16

作者：

Naik, H. ^{[1
]}

Singh, S. ^{[1
]}

Reddy, A. V. R. ^{[1
]}

Manchanda, V. K. ^{[1
]}

Ganesan, S. ^{[2
]}

Raj, D. ^{[2
]}

Rahman, Md. Shakilur ^{[3
]}

Kim, K. S. ^{[3
]}

Lee, M. W. ^{[3
]}

Kim, G. ^{[3
]}

Oh, Y. D. ^{[4
]}

Lee, H. -S. ^{[4
]}

Cho, M. -H. ^{[4
]}

Ko, I. S. ^{[4
]}

Namkung, W. ^{[4
]}

机构：

[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India

[2] BARC, Reactor Phys Design Div, Mumbai 400085, Maharashtra, India

[3] Kyungpook Natl Univ, Dept Phys, Taegu 702701, South Korea

[4] Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang 790784, South Korea

来源：

EUROPEAN PHYSICAL JOURNAL A | 2009年 / 41卷 / 03期

关键词：

PARTICLE-INDUCED FISSION; HIGH-ENERGY PHOTOFISSION; PHOTOEXCITATION MECHANISMS; ALPHA-PARTICLES; HEAVY ELEMENTS; KINETIC ENERGY; DELTA-REGION; PB-NAT; BISMUTH; BI;

D O I：

10.1140/epja/i2009-10812-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The photo-fission yields and photo-neutron cross-sections of (gamma, 3n) and (gamma, 4n) on Bi-209 induced by 50 and 65 MeV bremsstrahlung have been measured by using a recoil catcher and an off-line gamma-ray spectrometric technique. The mass-yield distribution of fission products in Bi-209 induced by bremsstrahlung photons from the present work and literature data in the energy range 28-85 MeV is symmetric around 103 mass units. However, the full width at half maximum of the yields distribution increases from 19 mass units at 28-40 MeV to 23 mass units at 85 MeV. The (gamma, 3n) reaction cross-section in the 50 MeV and the (gamma, 4n) reaction cross-section in the 50 and 65 MeV bremsstrahlung-induced reaction of Bi-209 were determined for the first time.

引用

页码：323 / 334

页数：12

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