Re: I131 & mobile phones

[Scott D Kniffin <Scott.D.Kniffin.1@gsfc.nasa.gov>]

Dr. Rosenberg,

Not a chance with the dose rate and time involved here.  Sounds like a bad
phone, not rad damage.  The most sensitive parts I've ever tested (for
space flight) showed significant degradation after 2krads.  The part was a
strange Digital to Analog converter of a type not used in cell phones.
Usually, even the worst parts will survive 5krads.  

Scott Kniffin

RSO Unisys Federal Systems, Lanham, MD
CHO Radiation Effects Facility, GSFC, NASA
mailto:Scott.D.Kniffin.1@gsfc.nasa.gov

The opinions expressed here are my own. They do not necessarily represent
the views of Unisys or NASA.  This material has not been reviewed by my
manager or NASA.  

>>Does anyone know whether mobile phones are susceptible to damage by such
>>ionising radiations, or had similar experience of this kind of thing? I
>>believe that infusion pumps (via integrated circuits) are prone to damage
>>during external beam (megavoltage photon) TBI treatments, and so we position
>>them outside the path of the primary beam.
>>
>>In these days, with mobile phones ubiquitous, perhaps there will be other
>>claims of radiation-induced damage!
>>
>>Thanks.
>>------------------------------------------------
>>Ivan Rosenberg, Ph.D.

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