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UNCLASSIFIED
UNCLASSIFIED
1. Radon—
Determination
U.S. Naval Research Laboratory, Report 6374.
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
1. Radon—
Determination
° =
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RADON AND ITS SHORT-LIVED DAUGH FER PRODUCTS IN
THE ATMOSPHERE, by L. B. Lockhart, Jr.,and R. , Patterson, Jr.
2. Radon — Decay —
Meas.
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTS IN
THE ATMOSPHERE, byL. B. Lockhart, Jr.,and R.L.. Patterson, Jr.
2. Radon~ Decay ~
Meas.
i
Eo F
20 pp. and figs. April 5, 1966.
3. Atmosphere —
20 pp. and figs. April 5, 1966.
3. Atmosphere —
mizes the accuracy with which the radon content of the atmosphere
1. Lockhart, L.B., Jr.
mizes the accuracy with which the radon content of the atmosphere
I. Lockhart, L.B., Jr.
and its apparent residence time there can be determined from
IL. Patterson, R.L., Jr.
and its apparent residence time there can be determined from
1. Patterson, R.L., Jr.
Radioactivity
incasurement of the fiterable gross @ activity during two separate
;
r
°
:
10-minute periods following the end of a 20-minute collection
10-minute periods following the end of a 20-minute collection
k
penod.
period.
.
Pam! (700 my-om*®} alunununt absorber on equipment of known
effaency far the 8 pardcles emitted by RaB and RaG
~
The 20-minute collection is made on a filter of essentially 100%
retentivity (glass fiber filter) and counted for § activity through a
.
10-mil (70. mg/cm?) aluminum absorber on equipment of known
i
The ratio of
efficiency for the 8 particles emitted by RaB and RaC. The rauo of
measured counts during the 6)-through-7}-minute decay pettod to
measured counts during the 6!-through-71-minute decay penod to
UNCLASSIFIED
(over)
UNCLASSIFIED
UNCLASSIFIED
i, Radon
THE EXTENT OF RADIOACTIVE FQUILIBRIUM BETWEEN
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
Meas.
THE ATMOSPHERE, by L. B. Lockhart, Jr. and R. L.. Patterson, Jr.
2. Radon ~ Decay—
20 pp. and hgs. April 3, 1966.
3. Atmosphere —
Racioactivity
THE ATMOSPHERE, by L. B. Lockhart, Jr. and RL. Patterson, Jr.
A set of experimental conditions has been derived which optimizes 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 acuvity 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 caunted for B activity through a
10-mil ¢70. mg/cm?} aluminum absorber on equipment of known
efhciency for the B particles emitted by RaB and RaC. The ratio of
measured counts during the 61-thiough-71-minute decay period to
boxer)
U.S. Naval Research Laboratory. Report 6374.
Determination
RADON AND TTS SHOR E-LIVED DAUGHTER PRODUCTS IN
UNC ASSEFIFDD
{over}
UNCLASSIFIED
U.S. Naval Research Laboratory. Report 6374
oo
A set of experimental conditions has been derived which opti-
"*s
Radioactivity
measurement of the filterable gross B activity during two separate
Lhe 20-minute collection is made on a filter of essentially 100%
retentsits (ghos fiber filter) and counted tor B acuiviry uirough a
Ye
on
4
U.S. Naval Research Laboratory. Report 6374.
THE EXTENT OF RADIOACTIVE EQUILIBRIUM BETWEEN
A sel of experimental conditions has been derived which opti-
we
?
I. Lockhart, E.B., Jr.
UE. Patterson, R.L., Jr.
I. Radon—
Determination
RADON AND ITS SHORT-LIVED DAUGHTER PRODUCTS IN
2. Radon —Decay~
20 pp. and figs. April 5, 1966.
3. Atmosphere —
Radioacuvity
A set of experimental conditions has been derived which opumizes the accuracy with which the radon content of the atmosphere
and its apparent residence trme there can be determined from
measurement of the filterabie gross B activity 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 8 activity through a
10-mil (70. mg/cm?) aluminum absorber on equipment of known
efficiency for the § particles emitted by RaB and RaC. The ratio of
measured counts during the 61-through-71-minute decay period to
Premier
a eee ets
Meas.
I. Lockhart, L.B., Jr.
Il. Patterson, R.L., Jr.