A new tool for (,n) yield calculations and its implications for DEAP-3600
Jan 3, 2018Published in:
- AIP Conf.Proc. 1921 (2018) 1, 060002
Contribution to:
- Published: Jan 3, 2018
DOI:
Experiments:
Citations per year
Abstract: (AIP)
Neutron-induced nuclear recoils present one of the dominant backgrounds in many low-background experiments. These neutrons are largely radiogenic in origin, coming from fission and (α, n) reactions in detector components. The (α, n) neutron production rate in a material depends on its composition and the energies of the α decays inside of it. We present NeuCBOT, the Neutron Calculator Based on TALYS, a new tool for calculating the (α, n) yields and neutron energy spectra for materials exposed to a given set of α energies or α-emitting isotopes. We benchmark these calculations against measured yields and SOURCES-4C calculations. We discuss these yield calculations in the context of DEAP-3600, a Weakly Interactive Massive Particle dark matter detector at SNOLAB. Using NeuCBOT and Geant4 simulations, we predict the neutron-induced nuclear recoil background in DEAP-3600. We then present in-situ constraints on the neutron background rate in DEAP-3600, consistent with our prediction.- nucleus: recoil
- n: background
- n: energy spectrum
- n: production
- yield: measured
- dark matter: detector
- particle: massive
- DEAP-3600
- benchmark
- fission
References(15)
Figures(0)
- [1]
- [2]
- [3]
- [4]
- [5]
- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [13]
- [14]
- [15]