Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

N42-2011 Spectroscopic Personal Radiation Detector

ANSI/IEEE N42.42 Standard project

This is an example of a document produced by a Spectroscopic Personal Radiation Detector (SPRD). In this document:

  • The instrument is described via a <RadInstrumentInformation> element.
  • The gamma radiation detector (a Csl) and the neutron radiation detector (a Lil) are described by a <RadDetectorInformation> element.
  • The energy declaration of the gamma radiation detector is defined via a linear model with no zero offset and 4.0 keV/channel.
  • Two measurements, and their corresponding nuclide identification results, are recorded:
    • Each measurement consists a <RadMeasurement> element containing a spectrum from the gamma radiation detector, counts from the a neutron radiation detector, and the ambient dose equivalent rate (in µSv/H) as collected over a one second integration time; the instrument's location and operating mode are captured as well, via <RadInstrumentState>. The id attribute value assigned to each <RadMeasurement> uses a simple sequential scheme (i.e., "M112", "M113"); each child element id attribute adds a unique suffix depending of the type of element (e.g., "M112G for the <Spectrum> from the gamma radiation detector for measurement M112).
    • Immediately following each <RadMeasurement> element, the analysis results for the measurement are given by an <AnalysisResults> elements.
  • There is a fault flag for the value out of limit.

Spectroscopic personal radiation detector file:


Created March 7, 2011, Updated November 15, 2019