[ Identification | Description | Input parameters | Output parameters | Links ]

The Moderator Component

A simple pulsed source for time-of-flight.

Identification

Description

Produces a simple time-of-flight spectrum, with a flat energy distribution

Example: Moderator(radius = 0.0707, dist = 9.035, xw = 0.021, yh = 0.021,
                   E0 = 10, E1 = 15, Ec = 9.0, t0 = 37.15, gam = 39.1)

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
radius m Radius of source  
E0 meV Lower edge of energy distribution  
E1 meV Upper edge of energy distribution  
dist m Distance from source to the focusing rectangle  
xw m Width of focusing rectangle  
yh m Height of focusing rectangle  
t0 mus decay constant for low-energy neutrons 37.15
Ec meV Critical energy, below which the flux decay is constant 9.0
gam meV energy dependence of decay time 39.1

Output parameters

Name Unit Description Default
p_in  

Links

[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri Feb 10 19:36:33 2012