Angular Distribution of 14-Mev Neutrons Scattered by Tritons

The Scatteving of 10 and 14 MeV Neutrons

The angular distributions of scattering of 10 and 14Mev neutrons by deuterons have been investigated using photographic emulsions. 1540 deuteron recoils entering the emulsion from a thin target of heavy wax placed in contact with its surface were measured. The results are shown to be in good agreement with the recent theoretical curves of Buckingham, Hubbard and 1VIassey. The errors to which th...

Effects of 14 mev neutrons on the reproductive capacity of Hela S3 cells.

A study was made on the loss of the reproductive capacity of HeLa S3 cells irradiated in vitro under both oxygenated and anoxic conditions with D-T neutrons (14 Mev) at 1, 20, 30, 150 and 400 rads/minute at 25•Ž and 37•Ž and with 180 kvp X-rays at 100 rads/minute at 37•Ž. 1) RBE of neutrons measured at a range of 2 to 10% survival was 2.67-2.62 under oxygenated conditions and 3.83.4.61 under an...

Angular distribution of neutrons from deuterated cluster explosions driven by femtosecond laser pulses.

We have studied experimentally the angular distributions of fusion neutrons from plasmas of multi-keV ion temperature, created by 40 fs, multi-TW laser pulses in dense plumes of D2 and CD4 clusters. A slight anisotropy in the neutron emission is observed. We attribute this anisotropy to the fact that the differential cross section for DD fusion is anisotropic even at low collision energies, and...

Dose equivalent from 500 MeV neutrons

Neutrons constitute a major component in the radiation fi eld outside the shielding of particle accelerators. Consequently appropriate neutron dose meters are needed to survey the radiation levels. A thermo-luminescence based neutron dosemeter is used at the UNILAC as well as at the SIS. It has been modifi ed to improve the response for high energetic neutrons (extended range). We report on a t...

Energy and Angular Distribution of Electrons Ejected from Argon by 5-keV to 1.5-MeV Protons