A solenoidal electron spectrometer for a precision measurement of the neutron β-asymmetry with ultracold neutrons

Creators: Plaster, B.; Carr, R.; Filippone, B. W.; Harrison, D.; Hsiao, J.; Ito, T. M.; Liu, J.; Martin, J. W.; Tipton, B.; Yuan, J.

Abstract

We describe an electron spectrometer designed for a precision measurement of the neutron β-asymmetry with spin-polarized ultracold neutrons. The spectrometer consists of a 1.0-T solenoidal field with two identical multiwire proportional chamber and plastic scintillator electron detector packages situated within 0.6-T field-expansion regions. Select results from performance studies of the spectrometer with calibration sources are reported.

Additional Information

© 2008 Elsevier. Received 12 June 2008; revised 24 July 2008; accepted 27 July 2008. Available online 5 August 2008. We thank R. Cortez and J. Pendlay for their skillful technical contributions to the design, fabrication, and deployment of the detector systems. We thank S. Currie for his devoted efforts to the operation and maintenance of the helium liquefaction plant. We thank the entire UCNA collaboration for many valuable suggestions. This work was supported in part by the National Science Foundation under grant numbers PHY-0079767 (a Major Research Instrumentation Program grant), PHY-0244899, PHY-0555674, and also by the Natural Sciences and Engineering Research Council of Canada.

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes

A solenoidal electron spectrometer for a precision measurement of the neutron β-asymmetry with ultracold neutrons

Abstract

Additional Information

Additional details