Chinese Physics C > 1986, Vol. 10 > Issue(6): 711-714

A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS

HUO Yu-Kun^,,
LIU Jian-Feng

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Abstract：
The radiative capture cross section at thermal neutron energy in ⁴⁰Ca, 410mb, is much higher than that expected by the statistical theory as well as by the direct capture theory. This study shows that this is a result of the constructive interference between potential capture and valence capture. By using the Becchettic-Greenless optical model potential ^[7]and in-cluding the interference effect, the thermal neutron induced radiative capture cross section and scattering cross section in ⁴⁰Ca were calculated and compared with measured data.

References

[1]

B. J. Allen, Proceeding of Nuclear Data for Science and Technology, Antwerp, September 1982.[2] G. Longo et al., Neutron Capture Gamma-Ray Spectroscopy, Grenoble, 7-11 September 1981, p. 413.[3] S. F. Mughabghab et al., Neutron Cross Section, Vol. 1 (Academic, New Youk, 1981).[4] A. M. Lane and J. E. Lynn, Nuclear Physics, 17(1960), 563; 586.[5] Y. K. Ho (霍裕昆) and M. A. Lone, Nuclear Physics, A406(1983), 1.[6] Y. K. Ho (霍裕昆) and M. A. Lone, Nuclem Physics, A406(1983), 18.[7] F. D. Becchetti and G. W. Greenless, Phys. Rev., 182(1969), 1190.

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HUO Yu-Kun and LIU Jian-Feng. A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS[J]. Chinese Physics C, 1986, 10(6): 711-714.

HUO Yu-Kun and LIU Jian-Feng. A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS[J]. Chinese Physics C, 1986, 10(6): 711-714. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS

HUO Yu-Kun^,
LIU Jian-Feng

Corresponding author:HUO Yu-Kun,

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1986-12-05

Abstract:The radiative capture cross section at thermal neutron energy in⁴⁰Ca, 410mb, is much higher than that expected by the statistical theory as well as by the direct capture theory. This study shows that this is a result of the constructive interference between potential capture and valence capture. By using the Becchettic-Greenless optical model potential^[7]and in-cluding the interference effect, the thermal neutron induced radiative capture cross section and scattering cross section in⁴⁰Ca were calculated and compared with measured data.