Cell-phone interference with pocket dosimeters

David Djajaputra, Ramasamy Nehru, Philip M. Bruch, Komanduri M. Ayyangar, Natarajan V. Raman, Charles A. Enke

Research output: Contribution to journalArticlepeer-review


Accurate reporting of personal dose is required by regulation for hospital personnel that work with radioactive material. Pocket dosimeters are commonly used for monitoring this personal dose. We show that operating a cell phone in the vicinity of a pocket dosimeter can introduce large and erroneous readings of the dosimeter. This note reports a systematic study of this electromagnetic interference. We found that simple practical measures are enough to mitigate this problem, such as increasing the distance between the cell phone and the dosimeter or shielding the dosimeter, while maintaining its sensitivity to ionizing radiation, by placing it inside a common anti-static bag.

Original languageEnglish (US)
Pages (from-to)N93-N99
JournalPhysics in medicine and biology
Issue number9
StatePublished - May 7 2005

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


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