3.3.1.127. NXpey

Status:

base class, extends NXobject

Description:

Partial electron yield (PEY) mode XAS. Electrons above a certain ...

Partial electron yield (PEY) mode XAS. Electrons above a certain kinetic energy threshold are collected. A retarding voltage is applied to discriminate against low-energy secondary electrons:

\[\mu(E) \propto I_{ey}/I_0\]

Symbols:

nEnergy: Number of energy data points

Groups cited:

NXdetector, NXprocess

Structure:

i0: (optional) NXdetector

Detector measuring the incident beam intensity ...

Detector measuring the incident beam intensity \(I_0\).

data: (optional) NX_NUMBER (Rank: 1, Dimensions: [nEnergy])

iey: (optional) NXdetector

Detector measuring the partial electron yield ...

Detector measuring the partial electron yield \(I_{ey}\).

data: (optional) NX_NUMBER (Rank: 1, Dimensions: [nEnergy])

retarding_voltage: (optional) NX_FLOAT {units=NX_VOLTAGE}

The retarding voltage (bias) applied to select ...

The retarding voltage (bias) applied to select electrons above a kinetic energy threshold.

PROCESS: (optional) NXprocess

Description of how the intensity was obtained from ...

Description of how the intensity was obtained from the raw detector data (i0, iey).

program: (optional) NX_CHAR

Name of the program used for processing.

version: (optional) NX_CHAR

Version of the program used for processing.

date: (optional) NX_DATE_TIME

Date and time of processing.

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source:

https://github.com/nexusformat/definitions/blob/main/base_classes/NXpey.nxdl.xml