Component Manual for the Neutron Ray-Tracing Package McStas, version 3.8.6

14.32  The Vertical_T0a McStas Component

Vertical T0-chopper as used in SNS_ARCS

Identification

Description

Vertical T0-chopper as used in SNS_ARCS

Input parameters

Parameters in boldface are required; the others are optional.

Name

Unit

Description

Default

len

m

length of slot

w1

m

center width

w2

m

edgewidth

nu

Hz

frequency

delta

s

time from edge of chopper to center Phase angle

tc

s

time when desired neutron is at the center of the chopper

ymin

m

Lower y bound

ymax

m

Upper y bound

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