Decision threshold and relative uncertainty of the measured net signal in radiation measurement. (September 2018)

• Record Type: Journal Article
• Authors: Boshkova, T.
• Is Part Of: Applied radiation and isotopes. Volume 139(2018:Sep.)
• Page Start: 146
• Page End: 150
• Publication Date: 2018-09
• Subjects: Critical level-Decision threshold -- Relative Uncertainty -- Net signal -- Detection limit; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2018.05.007
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: This work proposes a simple way to assess whether a physical effect due to the sample is present, via the relative uncertainty of the measured net signal. A possibility for evaluation of the respective relative limit for any particular (already measured) positive net signal is shown. This relative limit (' relative decision threshold ') is strictly related to the basic definition of the decision threshold. The full agreement between the conclusions via the decision threshold and via the relative decision threshold, is experimentally demonstrated. Highlights: A relative decision threshold is proposed as an alternative to the decision threshold. The relative decision threshold is strictly related to the basic definition of the decision threshold. The relative decision threshold can be estimated using only the value of the net signal. The relative uncertainty of the net signal should be compared with the relative decision threshold. Such test is especially applicable for the results reported by software programs.