Author/Authors :
Plaster، نويسنده , , B. and Carr، نويسنده , , R. and Filippone، نويسنده , , B.W. and Harrison، نويسنده , , D. and Hsiao، نويسنده , , J. and Ito، نويسنده , , T.M. and Liu، نويسنده , , J. and Martin، نويسنده , , J.W. and Tipton، نويسنده , , B. Y. Yuan، نويسنده , , J.، نويسنده ,
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.