Name: Environmental Radiation Data: Report 153 (en Inglés)
SKU: 57306444
Price: 30970.00 CLP
Availability: InStock
Author: Agency, U. S. Environmental Protection
ISBN: 9781500823276

portada Environmental Radiation Data: Report 153 (en Inglés)

Environmental Radiation Data: Report 153 (en Inglés)

Formato

Libro Físico

Editorial

Createspace

Autor

Agency, U. S. Environmental Protection

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

28x21.6x0.2 cm

Peso

0.12 kg.

ISBN13

9781500823276

Categorías

Naturaleza y mundo natural: interés general

Environmental Radiation Data: Report 153 (en Inglés)

Agency, U. S. Environmental Protection (Autor) · Createspace · Tapa Blanda

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Reseña del libro "Environmental Radiation Data: Report 153 (en Inglés)"

Every laboratory measurement involves uncertainty. When there is little or no radioactivity in a sample, one consequence of measurement uncertainty is the possibility of obtaining a measured value that is less than zero. Such a negative result occurs when random effects in the measure- ment process cause the measured value for the sample to be less than that of the blank or back- ground, which is subtracted from it. From April 1991 to December 1995, negative results were reported as "not detected" or "ND," and gamma analysis results that were less than their estimated measurement uncertainties were also reported as "ND." In January 1996, both of these practices were discontinued. Although negative activities are physically impossible, the inclusion of negative results in the report allows better statistical analysis of the data.