ISO 5820:2024
(Main)Microbeam analysis — Hyper-dimensional data file specification (HMSA)
Microbeam analysis — Hyper-dimensional data file specification (HMSA)
The MSA/MAS/AMAS hyper-dimensional data file specification (HMSA, for short) is a platform-independent data format to permit the exchange of hyper-dimensional microscopy and microanalytical data between different software applications. The applications include, but are not limited to: — Hyper-spectral maps, such as electron energy loss spectroscopy (EELS), energy dispersive x-ray spectrometry (XEDS), or cathodoluminescence spectroscopy (CL). — ‘Hyper-image’ maps, such as pattern maps using electron backscatter diffraction (EBSD) or convergent beam electron diffraction (CBED). — 3-dimensional maps, such as confocal microscopy, or focused ion beam (FIB) serial section maps. — 4-dimensional maps, such as double-tilt electron tomography. — Time-resolved microscopy and spectroscopy. In addition to storing hyper-dimensional data, the HMSA file format is applicable for storing conventional microscopy and microanalysis data, such as spectra, line profiles, images, and quantitative analyses, as well as experimental conditions and other metadata.
General Information
Standards Content (Sample)
International
Standard
ISO 5820
First edition
Microbeam analysis — Hyper-
2024-02
dimensional data file specification
(HMSA)
Reference number
© ISO 2024
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Published in Switzerland
ii
Contents
Foreword . xi
Introduction . xii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Overview . 1
4.1 Design Considerations . 1
4.2 Binary and XML file pair . 2
4.2.1 General . 2
4.2.2 HMSA general structure . 2
4.2.3 XML general structure . 3
4.2.4 HMSA-XML association . 3
4.3 Hyper-dimensional data . 3
Table 1 — Dimensionality of common data types . 3
4.4 Unicode and internationalization . 4
4.5 Minimalism . 4
4.6 Extensibility . 4
4.7 What HMSA does not do. 5
5 XML File Specification . 6
5.1 XML general structure . 6
5.2 XML specification . 7
5.2.1 General . 7
5.2.2 XML features not supported . 7
5.2.3 XML conformance and validation . 7
5.2.4 Character encodings . 7
5.2.5 Byte order markers . 8
5.2.6 Case sensitivity . 8
5.3 XML declaration . 8
5.3.1 General . 8
5.3.2 XML version attribute . 8
5.3.3 XML character encoding attribute . 8
5.3.4 XML standalone attribute . 8
5.4 Document root element . 8
5.4.1 General . 8
5.4.2 The Version attribute . 9
5.4.3 The XML:lang attribute . 9
5.4.4 The UID attribute . 9
5.5 XML Parameter element formats . 9
5.5.1 General . 9
5.5.2 Numerical values . 9
5.5.3 Arrays of values . 10
iii
Table 2 — Array type attribute values. 10
5.5.4 Physical units . 10
5.5.5 Alternative language attributes . 11
5.5.6 Special characters . 11
Table 3 — Non-permitted element or attribute characters. 11
5.5.7 Ordering of elements . 12
6 The
6.1 General . 12
6.2 Header items are optional . 12
6.3 The element . 12
6.4 The , <Author> and <Owner> elements . 13</br>
6.5 The <Date>, <Time> and <Timezone> elements . 13</br>
6.6 The <ArbitraryData> element . 13</br>
6.7 Other optional header elements . 14</br>
7 The <Conditions> list element . 15</br>
7.1 General . 15</br>
7.2 Conditions are optional . 15</br>
7.3 Condition templates and classes. 15</br>
7.4 Condition identifiers . 17</br>
7.5 Typical conditions . 17</br>
8 The <Dataset> element . 18</br>
8.1 General . 18</br>
8.2 The <DataLength> and <DataOffset> elements . 19</br>
8.3 The <DatumType> element . 19</br>
Table 4 — <DatumType> elhement values . 19</br>
8.4 The <Dimensions> list element . 20</br>
8.4.1 General . 20</br>
8.4.2 Ordering of dimensions. 20</br>
8.4.3 Coordinate mapping equations . 21</br>
8.4.4 Identity and calibration of dimensions . 22</br>
8.5 The <IncludeConditions> list element. 24</br>
Annex A (normative) Condition templates and classes . 25</br>
General . 25</br>
<Instrument> . 25</br>
A.2.1 General . 25</br>
A.2.2 The <Manufacturer> and <Model> elements . 25</br>
A.2.3 The <SerialNumber> element . 25</br>
<Probe> . 25</br>
<Probe Class=”EM”> . 26</br>
A.4.1 General . 26</br>
A.4.2 Required elements: . 26</br>
A.4.2.1 The <ProbeEnergy> element . 26</br>
A.4.3 Optional elements:. 26</br>
iv</br>
A.4.3.1 The <GunType> element . 26</br>
A.4.3.2 The <EmissionCurrent> element . 26</br>
A.4.3.3 The <FilamentCurrent> element . 26</br>
A.4.3.4 The <ExtractorBias> element . 26</br>
A.4.3.5 The <GunPressure> element . 27</br>
A.4.3.6 The <ProbeDiameter> element .</br>
<b>...</b>
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