UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
1. Radon —
Deter mination
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTS IN
2. Radon — Decay —
THE ATMOSPHERE, by L. B. Lockhart, Jr., and Ro. Patterson, Jr.
20 pp. and figs. April 5, 1966.
Meas.
3. Atmosphere —
Radioactivity
A set of experimental conditions hay been derived which opt-
U.S. Naval Research Laboratory. Report 6374.
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
1. Radon —
Determination
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTSIN
2. Radon — Decay —
THE ATMOSPHERE, byL. B. Lockhart, fr.,and R. L. Patterson, Jr.
20 pp. and figs. April 5, 1966.
Meas.
3. Atmosphere —
A set of experimental conditions has been derived which opti-
Radioactivity
mizes the accuracy with which the radoa content of be atmosphere
1
Lockhart, L.B., Jr.
mizes the accuracy with which the radon content of the atmosphere
[. Lockhart, L.B., Jr.
and its apparent residence time there can be determined from
LE. Patterson, R-L.., Jr.
and its apparent residence time there can be determined from
II. Patterson, R.L., Jr.
measurement of the filterable gross 8 activity during two separate
10-minute periods following the end of a 20-minute collection
period.
retentivity (glass fiber filter) and counted for § activity through a
eficiency for the 8 particles emitted by RaB and RaC. The radio of
efficiency for the 8 particles emitted by RaB and RaC:. The ratio of
measured counts during the 61-thiough-71-minute decay period to
measured counts during the 61-through-71-minute decay period to
10-mil (70. mg/cm?) aluminum abserber on equipment of known
UNCLASSIFIED
10-mil (70. mg/cm?) aluminum absorber on equipment of known
(over)
UNCLASSIFIED
UNCLASSIFIED
(over)
UNCLASSIFIED
U.S. Naval Research Laboratory. Report 6374.
1. Radon—
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTS IN
THE ATMOSPHERE, by L. B. Lockiart, Jr.,and R. b.. Patterson, Ji.
20 pp. and figs. April 5, 1966.
U.S. Naval Research Laboratory. Report 6374.
Determination
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
Meas.
THE ATMOSPHERE, byL.. B. Lockhart, fr., and R. 1. Patterson, Ji.
2. Radon— Decay —
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTS IN
3. Atmosphere —
Radioactivity
20) pp. and figs. April 5, 1966.
A set of experimental conditions has been derived which optimizes the accuracy with which the radon content of the atmosphere
I. Lockhart, b.B., Jr.
and its apparent residence time there can be determined from
It. Patterson, R.L., Ji.
mizes the accuracy with which the radon content of the atmosphere
and its apparent residence time there can be determined from
measurement of the filterable gross 8 activin during two separate
10-minute periods following the end of a 20-minute collection
period,
The 20-minute collection is made on a filter of essentially 100%
retentivity (glass fiber filter) and counted for B activity through a
10-mil (7G. mg/cm?) aluminum absorber on equipreent of known
efficiency for the 8 particles emitted by RaB and Rat. The ratio of
measured counts during the 61-through-71-minute decay period to
UNCLASSIFIED
POF
The 20-minute collection is made on a filter of. essentially 100%
retentivity (glass fiber filter) and counted for 8 activity through a
SOONre mee ee
The 20-minute collection is made on a filter of essentially 100%
a
10-mnimute periods following the end of a 20-minute collection
period
eR
incasurement of the filterable gross @ activicy during two separate
(ower)
RTs
U.S. Naval Research Laboratory. Report 6374.
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
_ Radon-—
Determination
. Radon — Decay ~
Meas.
. Atmosphere ~
Radioactivity
A set of experimental conditions has been derived which opu-
measurement of the filterable gross 8 activity during two separate
10-minute perieds following the end of a 20-minute collection
period.
The 20-minute collection is niade on a hlter of essentially 100%
retentivilty (glass fiber ilter) and counted tor 8 acuvity through a
10-mil (70. mg/cm?) aluminum absorber on equipment of known
efficiency foi the B particles emitted by RaB and RaC. The ratio of
measured counts during the 61-through-7]-minute decay period to
poet
Rome RET tS
. Lockhart, LB, ji.
1. Patterson, R.L., Je.