HFIRPowderReduction v1

Summary

Powder reduction for HFIR instruments

Properties

Name

Direction

Type

Default

Description

SampleFilename

Input

list of str lists

Sample files to Load. Allowed extensions: [‘.nxs.h5’]

SampleIPTS

Input

number

Optional

Sample IPTS number to load from

SampleRunNumbers

Input

int list

Sample run numbers to load

VanadiumFilename

Input

list of str lists

Vanadium files to Load. Allowed extensions: [‘.nxs.h5’]

VanadiumIPTS

Input

number

Optional

Vanadium IPTS number to load from

VanadiumRunNumbers

Input

int list

Vanadium run numbers to load

VanadiumBackgroundFilename

Input

list of str lists

Vanadium background files to Load. Allowed extensions: [‘.nxs.h5’]

VanadiumBackgroundIPTS

Input

number

Optional

Vanadium background IPTS number to load from

VanadiumBackgroundRunNumbers

Input

int list

Vanadium background run numbers to load

SampleBackgroundFilename

Input

list of str lists

Sample background files to Load. Allowed extensions: [‘.nxs.h5’]

SampleBackgroundIPTS

Input

number

Optional

Sample background IPTS number to load from

SampleBackgroundRunNumbers

Input

int list

Sample background run numbers to load

ApplyMask

Input

boolean

True

If True standard masking will be applied to the workspace

Grouping

Input

string

None

Group pixels. Allowed values: [‘None’, ‘2x2’, ‘4x4’]

Instrument

Input

string

HB2 Instrument. Allowed values: [‘’, ‘MIDAS’, ‘WAND^2’]

Wavelength

Input

number

Optional

Incident wavelength (A)

VanadiumDiameter

Input

number

Optional

Vanadium rod diamter (cm)

XUnits

Input

string

2Theta

The unit to which spectrum axis is converted to. Allowed values: [‘2Theta’, ‘d-spacing’, ‘Q’]

XMin

Input

dbl list

A comma separated list of the XMin for every spectrum. (Optional)

XMax

Input

dbl list

A comma separated list of the XMax for every spectrum. (Optional)

XBinWidth

Input

number

0

Bin width for each spectrum

Scale

Input

number

1

The background will be scaled by this number before being subtracted.

NormaliseBy

Input

string

Monitor

Normalise to monitor or time. Allowed values: [‘None’, ‘Time’, ‘Monitor’]

MaskWorkspace

Input

MaskWorkspace

The mask from this workspace will be applied before reduction

MaskAngle

Input

number

Optional

Out of plane (phi) angle above which data will be masked

AttenuationmuR

Input

number

Optional

muR for sample attenuation correction

Sum

Input

boolean

False

Specifies either single output workspace or output group workspace containing several workspaces.

Description

This algorithm is used to reduce powder diffraction data from the HFIR instruments at ORNL. It is a workflow algorithm that uses several other algorithms to perform the reduction. The input data can be specified either as a list of files or as an IPTS number and a list of run numbers. This works for both WAND and MIDAS instruments.

Categories: AlgorithmIndex | DataHandling\Nexus

Source

Python: HFIRPowderReduction.py