A new fast detection system at the KWS-2 high-intensity SANS diffractometer of the JCNS at MLZ - prototype test

6th European Conference on Neutron Scattering

Radulescu, A.^1 ; Arend, N.^1 ; Drochner, M.^2 ; Ioffe, A.^1 ; Kemmerling, G.^1 ; Ossovyi, V.^1 ; Staringer, S.^1 ; Vehres, G.^3 ; McKinny, K.^4 ; Olechnowicz, B.^4 ; Yen, D.^4

Jülich Centre for Neutron Science (JCNS), Outstation at MLZ, Forschungszentrum Jülich GmbH, Garching

85747, Germany^1

Central Institute for Engineering, Electronics and Analytics (ZEA-2), Forschungszentrum Jülich GmbH, Jülich

25425, Germany^2

Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, Jülich

25425, Germany^3

Reuter Stokes Products, GE Measurement and Control, General Electric Company, Twinsburg

OH

44087, United States^4

关键词: Ambient atmosphere;    Complete detections;    Detection system;    Fast detections;    High intensity;    Neutron science;    New detectors;    Prototype tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012026/pdf
DOI  :  10.1088/1742-6596/746/1/012026

来源: IOP

【 摘 要 】

A new detection system based on an array of3He tubes and innovative fast detection electronics was designed and produced by GE Reuter Stokes for the high-intensity small-angle neutron scattering diffractometer KWS-2, operated by the Jülich Centre for Neutron Science (JCNS) at the Heinz Meier-Leibnitz Zentrum (MLZ). The new detector consists of a panel array of 1443He tubes and a new fast read-out electronics. The electronics is mounted in a closed case in the backside of the3He tubes panel array and will operate at ambient atmosphere under cooling air stream. The new detection system is composed of eighteen 8-pack modules of3He-tubes that work independently of one another (each unit has its own processor and electronics). Knowing beforehand the performance of one detector unit and of one single tube detector is prerequisite for tuning and maximizing the performance of the complete detection system. In this paper we present the results of the tests of the prototyped 8-pack of3He-tubes and corresponding electronics, which have been carried out at the JCNS instruments KWS-2 (in high flux conditions) and TREFF.