[ Identification | Description | Input parameters | Output parameters | Links ]
V_selector
ComponentVelocity selector consisting of rotating Soller-like blades defining a helically twisted passage. Geometry defined by two identical, centered apertures at 12 o'clock position, Origo is at the centre of the selector (input is at -l0/2). Transmission is analytical assuming a continuous source. Example: V_selector(width=0.03, height=0.05, l0=0.30, r0=0.12, phi=42.298, l1=0.25, tb=0.0004, rot=20000, nb=72) These are values for the D11@ILL Dornier 'Dolores' Velocity Selector (NVS 023)
Name | Unit | Description | Default |
---|---|---|---|
width | m | Width of entry aperture | 0.03 |
height | m | Height of entry aperture | 0.05 |
l0 | m | Distance between apertures | 0.30 |
r0 | m | Height from aperture centre to rotation axis | 0.12 |
phi | deg | Twist angle along the cylinder | 48.298 |
l1 | m | Length of cylinder (less than l0) | 0.25 |
tb | m | Thickness of blades | 0.0004 |
rot | rpm | Cylinder rotation speed, counter-clockwise | 20000 |
nb | 1 | Number of Soller blades | 72 |
Name | Unit | Description | Default |
---|---|---|---|
RPM2OM | |||
omega | |||
phi_rad | |||
dt0 | |||
dt1 | |||
r_i | |||
r_f | |||
r_mean | |||
theta_i | |||
theta_f | |||
A | |||
d_s_phi |
V_selector.comp
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[ Identification | Description | Input parameters | Output parameters | Links ]
Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Feb 28 2006