Universität zu Köln

Douma, C. A., Boretzky, K., Gasparic, I, Kalantar-Nayestanaki, N., Kresan, D., Mayer, J. and Rigollet, C. (2019). Investigation of background reduction techniques for the NeuLAND neutron detector. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 930. S. 203 - 210. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1872-9576

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Abstract

NeuLAND is the neutron detector used by the (RB)-B-3 collaboration, which is part of the NUSTAR collaboration at the FAIR facility. NeuLAND is used for the detection of fast neutrons in the range of 200 MeV- 1000 MeV and is composed of plastic scintillators. Neutrons can undergo hadronic scattering with the scintillator material to produce charged particles, which in turn can be detected by their scintillation light. The high granularity of the detector allows for an accurate reconstruction of the primary interaction points of the neutrons. With these interaction points and with the information from the other detectors in the (RB)-B-3 setup, the reaction at the target can be kinematically reconstructed. This reconstruction is the tool that enables the (RB)-B-3 collaboration to study complex reactions. However, particles produced through reactions of the incoming radioactive beam with other (RB)-B-3 detectors may also enter NeuLAND's active volume and generate a significant background. In this paper, Monte Carlo simulations are utilized to explore possible reduction techniques of this background. In particular, the reduction of the charged-particle component of this background through the use of a VETO wall is explored for the initial setup of the (RB)-B-3 experiment. The list of physics processes considered and their implementation in the simulations are tested against experimental data to ensure that conclusions about the background reduction are meaningful. Extensive simulations show that the use of a VETO wall is, in many situations, not necessary.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Douma, C. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Boretzky, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gasparic, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Kalantar-Nayestanaki, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kresan, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mayer, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rigollet, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-137553
DOI:	10.1016/j.nima.2019.03.068
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Volume:	930
Page Range:	S. 203 - 210
Date:	2019
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1872-9576
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13755