Spark counting of α-radiograms recorded on LR-115 strippable cellulose nitrate film

Somogyi, G.; Hunyadi, I.; Varga, Zsolt

doi:10.1016/0145-224x(78)90023-6

Cited by 29 publications

(4 citation statements)

References 8 publications

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“…The films were then etched in 10 % NaOH solution at 608C for 90 min (14) . The tracks recorded on LR-115 films were counted using a spark counter (15,16) . Tracks are converted to gas concentrations using relations given below:…”

Section: Radiation Dosementioning

confidence: 99%

Indoor 222Rn and 220Rn concentrations and doses in Bangalore, India

L.A.Sathish¹,

Nagaraja

Ramachandran

2012

Radiation Protection Dosimetry

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Section: Radiation Dosementioning

confidence: 99%

Indoor 222Rn and 220Rn concentrations and doses in Bangalore, India

L.A.Sathish¹,

Nagaraja

Ramachandran

2012

Radiation Protection Dosimetry

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“…This technique was developed by Cross and Tommasino [9] and is discussed in detail in several studies [10][11][12].…”

Section: Spark Countermentioning

confidence: 99%

Volumetric Variations of Indoor Radon and Thoron

et al. 2011

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The volumetric variations of indoor radon and thoron were measured in rooms ranging in volume from 30-310 m 3 in different dwellings at various locations in Bangalore, India. The rooms selected were similar in quality of construction, age, type of walls, and type of floor. Twin cup plastic track detectors were installed in the rooms of 42 dwellings to record indoor 222 Rn and 220 Rn levels. Higher concentrations were observed in rooms with lower volumes than in rooms with higher volumes. The 222 Rn and 220 Rn concentrations in the dwellings ranged from 4.0-93.0 Bq m −3 , whereas the concentrations of their daughter products ranged from 0.01-2.5 mWL. When the room volume increased tenfold, the concentration of 222 Rn reduced by 23% and that of 220 Rn reduced by 13%, provided all other conditions remained the same. The concentrations did not increase linearly with the volumes of the rooms. The annual effective exposure dose rate because of 222 Rn, 220 Rn and their daughter products ranged from 0.1-0.4 mSv year −1 with a mean of 0.2 ± 0.1 mSv year −1 .

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“…Spark counter technique is applicable to plastic detectors, which provides a convenient, economical and fast method for track counting. This technique was developed by Cross and Tommasino [11] and is discussed in detail by several researchers [12]. 232 Th and 40 K in the respective areas [13].…”

Section: Spark Countermentioning

confidence: 99%

Survey of Indoor concentrations of Radon and Thoron in homes in Bangalore, India

L.A.Sathish¹,

Nagaraja

Nagesh³

et al. 2010

Indoor and Built Environment

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Due to the legislation and general concern of radiation levels in dwellings in India, there is a need to continuously monitor the indoor concentrations of radon and Thoron in different geographical areas of Bangalore, which could be of great significance to exposure to occupants, particularly in living places. This paper presents the 222Rn and 220Rn concentrations measured in houses in 10 different locations in Bangalore. The data was continuously obtained for a period of 2 years since 2007, covering more than 150 dwellings. The arithmetic mean values of 222Rn and 220Rn were found to be 35.0 and 21.5 Bq · m-3. The effective dose rate received by the population in the study area ranged between 0.1—0.5 mSv · y-1, the arithmetic mean concentration was 0.2 ± 0.03 mSv · y-1. The result shows no significant radiological risk for the inhabitants.

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Spark counting of α-radiograms recorded on LR-115 strippable cellulose nitrate film

Cited by 29 publications

References 8 publications

Indoor 222Rn and 220Rn concentrations and doses in Bangalore, India

Indoor 222Rn and 220Rn concentrations and doses in Bangalore, India

Volumetric Variations of Indoor Radon and Thoron

Survey of Indoor concentrations of Radon and Thoron in homes in Bangalore, India

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