[ Identification | Description | Input parameters | Links ]

The Tools_ONION Instrument

Identification

• Site: Mantid
• Author: Thomas Huegle
• Origin: ORNL
• Date: July 2019

Description

Test case for an layered detector shell instrument to provide quick overview of resolution per pixel.
Set up to be run in McStas -> Mantid mode, refer to manual for details on execution.
Simulates desired divergence by adjusting moderator size.
Considers only in-plane (xwidth) factors, sets yheight as 1 cm.
For an example on how to analyze the data, see the 'Onion_analyzerScript.py' available at
https://github.com/mccode-dev/McCode-contribution-support-docs/tree/master/McStas/2.6_Onion_tool_T_Huegle

Acceptable statistics can be achieved by running the simulation with 1E7 neutrons (output file: ~400MB)

Input parameters

Links

• Source code for Tools_ONION.instr.
• "Using an onion like neutron scattering instrument model to quickly optimize design parameters"
• T. Huegle, Nuclear Instruments and Methods in Physics Research Section A, 2019
• Python script available at https://github.com/mccode-dev/McCode-contribution-support-docs/tree/master/McStas/2.6_Onion_tool_T_Huegle

[ Identification | Description | Input parameters | Links ]