IEC 62396-5:2014

IEC 62396-5:2014

August 2014
International standard Current

Process management for avionics - Atmospheric radiation effects - Part 5: Assessment of thermal neutron fluxes and single event effects in avionics systems

IEC 62396-5:2014(E) provides a more precise definition of the threat that thermal neutrons pose to avionics as a second mechanism for inducing single event upset (SEU) in microelectronics. IEC 62396-5 addresses two main items:- a detailed evaluation of the existing literature on measurements of the thermal flux inside of airliners, and- an enhanced compilation of the thermal neutron SEU cross-section in currently available SRAM devices (more than 20 different devices). The net result of the reviews of these two different sets of data will be two ratios that are considered to be very important for leading to the ultimate objective of determining how large a threat is. This new edition includes the following technical changes with respect to the previous technical specification: document upgraded to an IEC international standard, change to title, updated references and bibliography, consideration of smaller geometries, addition of recent data on neutron cross-sections, etc.

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Main informations

Collections

International IEC standards

Publication date

August 2014

Number of pages

21 p.

Reference

IEC 62396-5:2014

ICS Codes

03.100.50   Production. Production management
49.060   Aerospace electric equipment and systems
31.020   Electronic components in general

Print number

1
Sumary
Process management for avionics - Atmospheric radiation effects - Part 5: Assessment of thermal neutron fluxes and single event effects in avionics systems

IEC 62396-5:2014(E) provides a more precise definition of the threat that thermal neutrons pose to avionics as a second mechanism for inducing single event upset (SEU) in microelectronics. IEC 62396-5 addresses two main items:
- a detailed evaluation of the existing literature on measurements of the thermal flux inside of airliners, and
- an enhanced compilation of the thermal neutron SEU cross-section in currently available SRAM devices (more than 20 different devices). The net result of the reviews of these two different sets of data will be two ratios that are considered to be very important for leading to the ultimate objective of determining how large a threat is. This new edition includes the following technical changes with respect to the previous technical specification: document upgraded to an IEC international standard, change to title, updated references and bibliography, consideration of smaller geometries, addition of recent data on neutron cross-sections, etc.
Replaced standards (1)
IEC TS 62396-5:2008
August 2008
Technical specification Cancelled
Process management for avionics - Atmospheric radiation effects - Part 5: Guidelines for assessing thermal neutron fluxes and effects in avionics systems

IEC TS 62396-5:2008 (E) provides a more precise definition of the threat that thermal neutrons pose to avionics as a second mechanism for inducing single event upset (SEU) in microelectronics. Addresses more in detail the following: detailed evaluation of the existing literature on measurements of the thermal flux inside of airliners; an enhanced compilation of the thermal neutron SEU cross section in currently available SRAM devices (more than 20 different devices).

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