Measurement of the He-4(gamma,n) reaction from 23 <Egamma <70 MeV
Research output: Contribution to journal › Article
A comprehensive set of 4He(,n) absolute cross-section measurements was performed at MAX-lab in Lund, Sweden. Tagged photons from 23<E<70 MeV were directed toward a liquid 4He target, and neutrons were identified using pulse-shape discrimination and the time-of-flight technique in two liquid-scintillator detector arrays. Seven-point angular distributions have been measured for 14 photon energies. The results have been subjected to complementary transition-coefficient and Legendre-coefficient analyses. The results are also compared to experimental data measured at comparable photon energies as well as recoil-corrected continuum shell-model, resonating group method, and effective interaction hyperspherical-harmonic expansion calculations. For photon energies below 29 MeV, the angle-integrated data are significantly larger than the values recommended by Calarco, Berman, and Donnelly in 1983.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||Physical Review C (Nuclear Physics)|
|Publication status||Published - 2007|
1994/01/01 → 2007/12/31