Dose assessment of an accidental exposure at the IPNS | Zendy

M.M. Campos Torres | Zendy

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Dose assessment of an accidental exposure at the IPNS

Author(s) -

M.M. Campos Torres

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/26528

Subject(s) - nuclear medicine , monte carlo method , dose rate , equivalent dose , imaging phantom , physics , materials science , dosimetry , medicine , medical physics , mathematics , statistics

Seven different methods were used to estimate the dose rate to a female worker who was accidentally exposed in the neutron PHOENIX beamline at the IPNS. Theoretical and measured entrance dose ranged from 550 mrem/min to 2850 mrem/min. Theoretical estimates were based on a Monte Carlo simulation of a spectrum provided by IPNS (Crawford Spectrum). Dose measurements were made with TLDs on phantoms and with ionization chambers in a water phantom. Estimates of the whole body total effective dose equivalent (TEDE) rate ranged from 5.2 mrem/min to 840 mrem/min. Assumed and measured quality factors ranged from 2.6 to 11.8. Cytogenetic analyses of blood samples detected no positive exposure. The recommended TEDE rate was 158 mrem/min. The TEDE was 750 mrem

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