IEC 60846-1:2009

FOREWORD
1 Scope and object
2 Normative references
3 Terms and definitions
4 Units and list of symbols
   4.1 Units
   4.2 List of symbols
5 General characteristics of ambient and directional dose
   equivalent (rate) meters
   5.1 Indication
   5.2 Read-out
   5.3 Dose equivalent rate range
   5.4 Effective range of measurement
   5.5 Minimum range of measurement
   5.6 Rated range of an influence quantity
   5.7 Minimum rated range of influence quantity
   5.8 Alarm levels
   5.9 Additional indication
   5.10 Failure operation of indication
   5.11 Ease of decontamination
   5.12 Information given on the instruments
   5.13 Algorithm to evaluate the indicated value
   5.14 Classification of the dosemeters
6 General test procedures
   6.1 Instructions for use
   6.2 Nature of tests
   6.3 Reference conditions and standard test conditions
   6.4 Tests for influence quantities of type F
   6.5 Tests for influence quantities of type S
   6.6 Consideration of non-linearity
   6.7 Consideration of several detectors or signals in a
        dosemeter
   6.8 Position of dose equivalent (rate) meter for test
        purposes
   6.9 Low dose equivalent rates
   6.10 Statistical fluctuations
   6.11 Production of reference radiation
   6.12 Reference photon radiation
   6.13 Reference beta radiation
   6.14 Determination of dose equivalent (rate) response
7 Additivity of indicated value
   7.1 Requirements
   7.2 Method of test
   7.3 Interpretation of the results
8 Radiation performance requirements and tests
   8.1 General
   8.2 Consideration of the uncertainty of the conventional
        quantity value
   8.3 Model function
   8.4 Variation of the response due to photon radiation energy
        and angle of incidence
   8.5 Variation of the response due to beta radiation energy
        and angle of incidence
   8.6 Response to neutron radiation
   8.7 Linearity and statistical fluctuations
   8.8 Overload characteristics
   8.9 Response time
   8.10 Interrelation between response time and statistical
        fluctuations
   8.11 Variation of the response due to dose rate dependence
        of dose measurements
   8.12 Response to pulsed ionizing radiation fields
   8.13 Requirements on the accuracy of alarm of dose
        equivalent (rate) monitors
9 Electrical characteristics of directional and ambient dose
   equivalent (rate) meters
   9.1 Stability of zero indication with time
   9.2 Warm-up time
   9.3 Power supplies
10 Mechanical characteristics of directional and ambient
   dose equivalent (rate) meters
   10.1 Shock during operation (microphonics)
   10.2 Drop test during transport
   10.3 Orientation of dose equivalent (rate) meter
        (geotropism)
11 Environmental characteristics, performance requirements
   and tests
   11.1 General
   11.2 Ambient temperature
   11.3 Relative humidity
   11.4 Atmospheric pressure
   11.5 Sealing against moisture
   11.6 Storage and transport
   11.7 Electromagnetic compatibility
12 Software
   12.1 General
   12.2 Requirements
   12.3 Method of test
13 Summary of characteristics
14 Documentation
   14.1 Information on the instrument
   14.2 Certificate
   14.3 Operation and maintenance manual
   14.4 Type test report
Annex A (normative) Statistical fluctuations
Annex B (informative) Usage categories of ambient/directional
        dose (rate) meters
Annex C (informative) Calibration of ambient dose equivalent
        (rate) meters for environmental monitoring
Bibliography

IEC 60846-1:2009 specifies the design requirements and the performance characteristics of dose equivalent (rate) meters intended for the determination of ambient dose equivalent (rate) and directional dose equivalent (rate) as defined in ICRU Report 47. Applies to dose equivalent (rate) meters and/or monitors for the measurement of ambient dose equivalent (rate) and/or directional dose equivalent (rate) from external beta, X and gamma radiation.