Temat: radon measurement - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fast measurement of radon concentration in water with Lucas cell
Autorzy:: Machaj, B.
Bartak, J.
Powiązania:: https://bibliotekanauki.pl/articles/147981.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: radon in water
measurement
concentration
Opis:: Abstract Fast method of measurement of radon concentration in water based on flushing (bubbling) water sample with air in closed loop with Lucas cell is presented. The main feature of the method is washing radon from large sample of water to small volume of air including the volume of Lucas cell, thanks to which high radon concentration in the air and considerable sensitivity of measurement is achieved. Estimated measuring sensitivity is S = 8.5 cpm/(Bq/dm3). Random error due to statistical fluctuations of count rate at radon concentration 1, 100, 10 000 Bq/dm3 is: 11, 1.1, 0.1% correspondingly at counting (measuring) time 10 min. Minimum detectable radon concentration in water for such counting time is 0.11 Bq/dm3.
Źródło:: Nukleonika; 2004, 49, 1; 29-31
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Measurement of radon (222Rn) and thoron (220Rn) concentration with a single scintillation cell
Autorzy:: Machaj, B.
Urbański, P.
Bartak, J.
Powiązania:: https://bibliotekanauki.pl/articles/146829.pdf
Data publikacji:: 2007
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: radon
thoron
measurement
scintillation cell
Opis:: . A single scintillation cell (ö 54 × 74 mm) is used for the measurement of radon and thoron. The radon and thoron laden air is filtered and forced to flow at 1 dm3/min through the scintillation cell in the period of 1 10 min. The count number from alpha radiation is registered in the periods of 3 10 min and 20 30 min. Two values of detection and deposition efficiency of alpha radiation are used for radon (at air flow and air at rest in the cell) and for thoron. Measurements of radon laden air and thoron laden air showed good agreement between the reference concentration and the measured concentration, not worse than 1% for radon and not worse than 2% for thoron. Combination of radon + thoron concentration showed also a small interference ("cross talk") not worse than 1%.
Źródło:: Nukleonika; 2007, 52, 4; 167-171
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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