The Ionization Due to Beta Radiation From the Atmosphere

Miranda, H.

doi:10.1029/jz063i001p00147

Cited by 6 publications

(3 citation statements)

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“…With respect to beta-radiation from air borne radioactivity, Miranda [9] estimated the contribution to be about 0.034 J for 222Rn concentration of 2.10 -16 Ci/cm 3. This estimated value was inconsistent with the observed value (mean 0.6 J).…”

Section: Discussionmentioning

confidence: 99%

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Measurements of the ionization intensity due to beta-radiation near the ground

Iida

Kawano

1972

Arch. Met. Geoph. Biokl. A.

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The results of measurements of the ionization intensity due to beta-radiation from the ground surface and the atmosphere, employing a thin-walled ionization chamber, are described. The effective ionizing volume of the chamber, Veff, was determined by experimental and theoretical methods. The measured values are corrected by using Vefl. The absorption of gamma-radiation in the shield of the acryle plate is discussed. The ionization intensities due to beta-radiation at several heights on the ground surface were measured on the campus of Nagoya University. The measured value at 1 meter height was about 1 J. The ionization intensity due to betaradiation from the atmosphere was also measured in the same place and on the top of Mr. Norikura (2770 m). The value in each station was about 0.3 J. The ionization intensities due to beta-radiation from the ground surface and the atmosphere were theoretically estimated by using Loevinger's formula to compare with those obtained by measurements. The calculated values seemed to agree approximately with the measured ones. ZusammenfassungMessungen des durch Beta-Strahlung verursachten Ionisationsgrades nahe dem Erdboden Mit einer dtinnwandigen Ionisationskammer gewonnene Ergebnisse yon Messungen der Ionisationsst~irke als Folge der Betastrahlung vom Erdboden und yon der Luft werden beschrieben. Der wirksame ionisierte Rauminhalt der Kammer, Yell, wurde nach experimentellen und theoretischen Methoden bestimmt. Dedicated to the memory of Prof. Hans Israel. 13" 196 T. tida et al. Die Metgergebnisse sind unter Ber6cksichtigung von Veff korrigiert worden. Die Absorption der Gammastrahlung in der Abdeckplatte aus Akrylit wird diskutiert. Die Ionisierungsstiirken als Folge der Betastrahlung wurden auf dem Geliinde der Nagoya-Universit/it in verschiedenen H~Shen fiber dem Erdboden gemessen. Es ergab sich ein Wert yon etwa 1 J in einer H/She von einem Meter. Am gleichen Ort und auf dem Gipfel des Mt. Norikura (2770 m) wurde aul~erdem die Ionisierungsstiirke als Folge der Betastrahlung aus der Atmosph~ire gemessen. An beiden Stationen ergab sich ein Wert yon etwa 0,3 J. Die durch Betastrahlung sowohl vonder Oberfl~iche des Erdbodens wie von der Atmosph~ire erzeugten Ionisationsst~irken wurden unter Benutzung der Formel yon Loevinger theoretisch bestimmt und mit den gemessenen Werten verglichen. Die berechneten und gemessenen Werte stimmen ann~ihernd iiberein.

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Section: Discussionmentioning

confidence: 99%

“…Although the results of measurements of the ionization intensity due to gamma-radiation from the ground surface were reported by many authors [1,2,3,4,5], research on the ionization due to betaradiation from the ground surface and atmosphere were carried out only be few investigators [6,7,8,9,10,11].…”

Section: Introductionmentioning

confidence: 99%

Measurements of the ionization intensity due to beta-radiation near the ground

Iida

Kawano

1972

Arch. Met. Geoph. Biokl. A.

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“…Hess (1953) and H.A. Miranda JR., et al (1958), M. Kawano and S. Nakatani (1959), Y. Ikebe (1970), and T. Iida and M. Kawano (1972).…”

Section: Introductionmentioning

confidence: 99%

A Continuous Measurement of the Total Ionization in the Atmosphere Near the Ground (instrument and method)

Mochizuki

Namiki

Kato

et al. 1975

Journal of the Meteorological Society of Japan

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For the purpose of the continuous measurement of the total rate of ion formation in the atmosphere, a device was developed which consisted of five identical ionization chamber units. Ionization was measured by using three sets of apparatus, two of which were composed of two chamber units in order to compensate the residual ionization of the chamber, and the rest was a single chamber unit. For obtaining the working characteristics of newly constructed apparatus, long-dated observations on the some fields were done. The newly constructed apparatus can give continuous recording, fairly accurate evaluation of the total rate of ion formation and its diurnal variation in the atmosphere.

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