1098 / 1840
Standard loading pattern
Tandem loading
Similar to Manchester or Fletcher loading
15 + 10 + 10 mg Ra = more active dwell positions at tip
Ring loading
Similar to Fletcher loading: 20 on each side of the ring
Active dwell positions on both lateral sides of the ring
Difference
43
Different sizes of ovoids vs. constant ring thickness,
only distance between vaginal sources different
(diameter) – number of active dwell positions constant to
limit vaginal dose