EOTES
(1) Measurements made with Victcreen thimble chambers evi Kelcket pocket dosimeters -
values given in mean dose per exposure - maximum sensitivity chamber used was
O.lr and lowest dose reported 1 m, indicating values reported as zero as
something less than 1 mr.
(2) Estimated dose.
(3) Measurements made with ionization chambers in contact with the male scrotum
Ovary dose estimated
and on the skin surface directly above the ovaries.
from depth-dose data and phantom measurements.
(4) Estimated dose, bused on the data of Stamford and Vance (Ref. 7).
(5) Measurements in air made with Victoreen condenser r-meter.
are maximum doses.
Values given
(6) Measurements made with ionization chambers.
(7) Readings taken from exposed film.
Values refer to localized exposure.
(8) Measurements made with ionization chamber in lateral or posterior vaginal
fornix.
Billings et al (1) estimate that, on the average, children under 11 years of age
receive a higher gonadal dose (mr) per examination than adults as follows:
Males
Females
20
4o0
290
Adults
Children
230
Their data for specific examinations are as follows:
Dose tc ponads (mr/examination)
0-2
M
Skull fase view)
Chest (AP)
Abdomen (AP-KUB)
Lumbar Spine (AP)
(Lat.)
1
2
150
900
Se
FE
1
0
7
300
2-
M
Q
0
310
oo
1200
Be
0
0
130
190
500
M
Ex
QO
0
G
U
250
2h0
300
730
Osborn and Smith (4) give data on the dose to the fetus for diagnostic roentgenographic examinations during pregnancy: