INPP Seminar | The ³h(d,γ)5he reaction for Ec.m. ≤ 300 keV, Nov. 17

Cody Parker

The Institute of Nuclear and Particle Physics (INPP) presents Cody Parker, of Ohio University, presenting “The ³h(d,γ)5he reaction for Ec.m. ≤ 300 keV,” on Tuesday, Nov. 17, at at 4 p.m. in Edwards Accelerator Lab, Roger W. Finlay Conference Room.

Abstract: The ³H(d,γ)⁵He reaction has been measured using a 500-keV pulsed deuteron beam incident on a stopping titanium tritide target at Ohio University’s Edwards Accelerator Laboratory. The time-of-flight (TOF) technique has been used to distinguish the γ-rays from neutrons detected in the bismuth germinate (BGO) γ-ray detector. A stilbene scintillator and an NE-213 scintillator have been used to detect the neutrons from the ³H(d,n,)α reaction using both the pulse-shape discrimination and TOF techniques. A newly-designed target holder with a silicon surface barrier detector to simultaneously measure α-particles to normalize the neutron count was incorporated for subsequent measurements. The γ-rays have been measured at laboratory angles of 0^◦ , 45^◦, 90^◦ , and 135^◦ . Information about the γ-ray energy distribution for the unbound ground state and first excited state of ⁵He can be obtained experimentally by comparing the BGO data to Monte Carlo simulations. The ³H(d,γ)/³H(d,n) branching ratio has also been determined. Current analysis for data at each laboratory angle will also be presented.