The Preliminary Results from the Charge Particle Detector at the "Back-n" White Neutron Source

Fan, Rui; Zhang, Guo.Hui.; Jiang, Wei; Ning, Chang. Jun.; Zhao, Y.; He, Yue. Feng.; Bai, Huai.Yong.; Jiang, Hao; Cui, Zeng. Qi.; Wang, Yan Feng; Zhou, Liang; Sun, Zhi. Jia.; Tang, Jing

doi:10.1109/nssmic.2018.8824480

Cited by 1 publication

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“…In previous researches on LPMWPC, the detector structure, the pressure of the working gas, and the bias voltage of LPMWPC were studied at LPDA [24,25]. The research results such as the relationship between gain and bias, and the relationship between gain and pressure of the working gas have guided the design of LPMWPC in this Δ𝐸-Δ𝐸-𝐸 telescope array.…”

Section: Low-pressure Multi-wire Proportional Chambermentioning

confidence: 99%

The light charged particle detector array at the CSNS Back-n white neutron source

et al. 2023

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The Back-n white neutron source at the China Spallation Neutron Source (CSNS) provides neutrons in the continuous energy region from 0.5 eV to 200 MeV. A spectrometer named Light charged Particle Detector Array (LPDA) is designed for the study of (n, lcp) reactions at Back-n. The main detector of the LPDA spectrometer, a 16-unit ΔE-ΔE-E telescope array, is composed of two arrays of 8-unit ΔE-ΔE-E telescope. Each telescope unit consists of a Low-Pressure Multi-Wire Proportional Chamber (LPMWPC), a Si-PIN detector, and a CsI(Tl) scintillator detector. In 2021, a neutron-proton (n-p) scattering reaction cross-section measurement experiment was accomplished as the first experiment of the telescope array. Protons can be clearly identified in the ΔE-E spectrum (LPMWPC + Si-PIN) and the ΔE-E spectrum (Si-PIN + CsI(Tl)). Cross sections of the n-p scattering reaction in the neutron energy range of several MeV are extracted. The ΔE-E method also provides new measurement opportunities for many-body neutron induced light charged-particle emission reactions.

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Section: Low-pressure Multi-wire Proportional Chambermentioning

confidence: 99%