1107231N / 082020 APPENDIX A. MOBILE FIELD KIT API
93
Table 8. Calibration Information
Name
Type
Example
Comments
CalibrationType
Object
EquationModel
Object
Coefficients
Array
3 coefficients for energy calibration offset, slope and shape
Model
String
Polynomial
Unit
String
keV
Type
string
Energy
The Calibration node is describing the relation between the spectrum index in the measurement spectrum
node and their representing energy.
Without this relation, no expert will be able to analyze a recorded spectrum.
The 'CalibrationType' describes a channel -> energy function.
The energy unit is in 'keV'.
The function is a polynomial function:
f(channel) = a0 + a1 * c a2 * channel^2
The coefficients [-0.1434900015, 0.4884499907, -0.0000000243] are describing the polynomial coefficients
a0, a1 and a2.
The relationship between channel index and its energy is fix for each detector and therefore it is sufficient to
read once.
A.12
N42 SPECTRUM
GET http://<ip-address>/remote/v1/n4242
Returns the N42.42 (2012 format) spectrum information. The N42 call sends back a JSON with a String-object,
which contains the n42.XML data. See external document Part Number 1111792 Detective X File Formats for
a detailed description of the Detective X N42 file format.
Available response representations:
Example record:
{"n42XML":"<?xml
version=\"1.0\"
encoding=\"UTF-8\"?>\r\n<?xml-model
href=\"http://physics.nist.gov/N42/2011/schematron/n42.sch\"\r\ntype=\"application/xml\"
schematypens=\"http://purl.oclc.org/dsdl/schematron\"?>\r\n<RadInstrumentData\r\nxmlns=\"http://physics.nist.g
ov/N42/2011/N42\"\r\nxmlns:xsi=\"http://www.w3.org/2001/XMLSchema-
instance\"\r\nxsi:schemaLocation=\"http://physics.nist.gov/N42/2011/N42
http://physics.nist.gov/N42/2011/n42.xsd\"\r\nn42DocUUID=\"64a170f5-4c39-4bd8-af16-
f9e927b31ce6\">\r\n<RadInstrumentDataCreatorName>ORTEC</RadInstrumentDataCreatorName>\r\n<RadInstrume
ntInformation
id=\"RadInstrumentInformation-
1\">\r\n<RadInstrumentManufacturerName>ORTEC</RadInstrumentManufacturerName>\r\n<RadInstrumentIdentifi
er>17181862</RadInstrumentIdentifier>\r\n<RadInstrumentModelName>Detective
X</RadInstrumentModelName>\r\n<RadInstrumentClassCode>Radionuclide
Identifier</RadInstrumentClassCode>\r\n<RadInstrumentVersion>\r\n<RadInstrumentComponentName>Firmware</
RadInstrumentComponentName>\r\n<RadInstrumentComponentVersion>DETO-
Содержание Detective X
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