November 1, 2015 at 8:00 pm

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

Cody Parker

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.

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