Nuclear Techniques ›› 2014, Vol. 37 ›› Issue (10): 100518-100518.doi: 10.11889/j.0253-3219.2014.hjs.37.100518


Study of inter atomic screened coulomb potential between deuterium and heavy atom collision by P/T yield ratio emitted from low energy D-D reaction

LIU Dongdong WANG Zhenghai ZHOU Yushan FANG Kaihong WANG Tieshan   

  1. (School of Nuclear Science and Technology of Lanzhou University, Lanzhou 730000, China)
  • Received:2014-04-28 Revised:2014-05-18 Online:2014-10-10 Published:2014-10-16

Abstract: Background: The yield ratio (P/T value) of proton to tritium from D-D nuclear reaction in solid is related to detection angle between direction of emitted particles and that of D ions in solid. Actually, the detection angle is changed by the multiple scattering of D ions with target atom. The P/T value is changed consequently. Purpose: The potential between D ion and target atoms could be derived from this yield ratio P/T in low energy region. Methods: The deuterated targets were obtained by bombarding metal foils with 10?20 keV D+ beam. Then, P/T values were measured in different targets at different energies. Simultaneously, a Monte Carlo computer program was used to simulate the P/T values with different multiple scattering potentials. Results: The simulated P/T values with the universal potential are systematically larger than the experimental results; P/T value is related to the target atomic number (Z). Conclusion: P/T value could be a probe to study inter atomic potential in metal targets.

Key words: D-D nuclear reaction in low energy region, P/T value, Screened potential