Design of a Rotor Assembly for Bandwidth Limiting Neutron Chopper

Abstract:

A bandwidth limiting neutron chopper is an important device in neutron scattering facilities. It contains a rotor assembly running precisely under control to cut a neutron beam into designed pulses. There are a number of requirements for the rotor assembly to function rightly. The work described in this paper is on design and developing of the rotor assembly. Main content includes structure consideration, numerical calculation of the rotating part stress, test of resin composite adhesion, dynamic balancing process, as well as system operation result. A prototype of rotor assembly was made and operated at the speed of 3000 rpm, which satisfied the requirements.

• Periodical: Advanced Materials Research (Volume 630)
• Pages: 203-206
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.630.203
• Online since: December 2012
• Authors: Xiao Zhang Zhang, Kai Zhang, Li Ru Zhao, Lei Jiang
• Keywords: Balancing, Neutron Blocking, Neutron Chopper, Rotor Assembly, Strength

References

[1] Liru Zhao, Xiao-Zhang Zhang, Kai Zhang, Tong Zhang : Research on control precision of the neutron bandwidth chopper, Applied Mechanics and Materials Vols. 220-223 (2012) pp.1077-1083.

DOI: 10.4028/www.scientific.net/amm.220-223.1077

[2] Kai Zhang, Lei Jiang, Xingjian Dai, Jinping Dong, Xiao-Zhang Zhang: Prototype of bandwidth limiting neutron chopper, UCANSI, Tsinghua University, Beijing, Aug. (2010).

DOI: 10.1016/j.phpro.2012.03.009

[3] Office of Science DoE of U.S.: Equipment Specification for a Bandwidth Limiting Disk Chopper System, July 25, 2006, 107030400-TS0001-R06.

[4] I. Baeka, E.B. Iversonb, J.M. Carpentera: The Monte Carlo simulation of neutron transmitted and scattered by disk choppers of various compositions, Nuclear Instruments and Methods in Physics Research A 481 (2002) 422–430.

DOI: 10.1016/s0168-9002(01)01259-1