Does X-Ray radiation damage NFC tags?

Forum / MIFARE general topics and applications / Does X-Ray radiation damage NFC tags?

  • 14. May 2018 at 11:41
    A few MIFARE DESFire EV1 that went through airport security X-Ray scanning, were not readable anymore.
    Is there any experience on the resistance of NFC to X-rays? Is there technical documentation regarding this topic available?
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    Re: Does X-Ray radiation damage NFC tags?

    15. May 2018 at 10:38
    Hi Philipp,

    NXP contactless products are certified against several standards. For X ray it is defined in:

    ISO/IEC 7810, Third edition 2003-11-01
    AMENDMENT 1 2009-12-15
    AMENDMENT 1: Criteria for cards containing integrated circuits

    9.1 X-rays
    The card shall continue to operate as intended after exposure of any card surface to medium-energy X-radiation as described in the test methods in ISO/IEC 10373-1, with energy in the range of 70 keV to 140 keV, of a cumulative dose of 0,1 Gy per year.

    NOTE This corresponds to approximately twice the maximum acceptable dose to which humans may be exposed annually.

    I take always NXP contactless cards in my hand luggage with me at my business trips. It is checked in X ray scanners at the airport and I never found defect cards after scanning. The dose from modern X ray scanners are very low and does not damage electronic equipment.

    Could it possible that the card was damaged in a different situation?

    The TapLinx team
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