Abstract
Patient and occupational dose rates due to psammotherapy (sand therapy) and climatotherapy treatments in high natural background areas in Egypt have been evaluated. Monte Carlo mathematical simulations using adult human phantoms were applied to consider the effect of elevated 238U, 232Th and 40K concentrations and the nonhomogeneous distribution of natural radionuclides in beach sand. Three situations: phantom covered by sand or lying on the beach and points in air at several heights above sand level, were considered. The gamma-ray doses per treatment were calculated at a reference point located on the phantom surface centrally above the genital area. The thus calculated patient-absorbed-dose ranges at this reference point were 0.006-0.018mGy and 0.004-0.023mGy per climatotherapy and psammotherapy treatments, respectively.
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