Two 13.3 mg radium tubes are arranged in a line with their centers 5.5 cm apart. A weaker source is placed midway between them. How much radium should be in this latter source to produce the same dose rates to points opposite each of the sources at a distance of 2.0 cm away from the line. Assume sources 1.35 cm active length 1.0 mm Pt.
Two 13.3 mg radium tubes are arranged in a line with their centers 5.5 cm apart. A weaker source is placed midway between them. How much radium should be in this latter source to produce the same dose rates to points opposite each of the sources at a distance of 2.0 cm away from the line. Assume sources 1.35 cm active length 1.0 mm Pt.
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Two 13.3 mg radium tubes are arranged in a line with their centers 5.5 cm apart. A weaker source is placed midway between them. How much radium should be in this latter source to produce the same dose rates to points opposite each of the sources at a distance of 2.0 cm away from the line. Assume sources 1.35 cm active length 1.0 mm Pt.
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