6533b825fe1ef96bd12826fe
RESEARCH PRODUCT
Photoproduction of high-energy neutrons in thick targets by electrons in the energy range 150 to 270 MeV
G. LührsH.j. Von Eysssubject
PhysicsMass numberNuclear and High Energy PhysicsRange (particle radiation)Nuclear TheoryGeneral Physics and AstronomyElectronSpectral lineNuclear physicsPionNuclear fusionNeutron detectionNeutronNuclear Experimentdescription
Photoneutron spectra with energies greater than 12 MeV produced by electrons incident on a thick lead target have been measured for primary electron energies between 150 and 266 MeV and at a fixed angle of 90 ° to the beam axis. Measurements of the neutron yield have furthermore been performed at a primary energy of 234 MeV as a function of target depth for the same lead target and as a function of the mass number for C, Al, Cu, Cd and Pb targets. The results were obtained with three independent neutron detectors: two proton recoil counters and one time-of-flight set-up. The high-energy regions of the spectra are compared with the predictions of the phenomenological quasi-deuteron model and a satisfactory agreement in shape and scale of the spectra is found. Additional high-energy neutrons from pion reabsorption processes were observed at electron energies of 234 and 266 MeV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1973-10-01 | Zeitschrift für Physik |