Development of a calibration system for airborne 131I monitoring devices. (March 2016)

• Record Type: Journal Article
• Authors: Zhao, C.; Tang, F.; He, L.; Xu, Y.; Lu, X.
• Is Part Of: Applied radiation and isotopes. Volume 109(2016:Mar.)
• Page Start: 460
• Page End: 464
• Publication Date: 2016-03
• Subjects: Airborne 131I -- 131I reference sample -- Calibration -- γ Spectrometer; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2015.12.018
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: A prototype calibration system for airborne 131 I monitoring devices was developed at the Shanghai Institute of Measurement and Testing Technology (SIMT). This system consists of a gaseous 131 I2 generator, an airborne storage chamber, an airborne iodine sampler, and an HPGe spectrometer. With this system, 131 I reference samples in the form of charcoal filters and charcoal cartridges, with activities ranging from 100 to 10, 000 Bq, were produced with overall relative standard uncertainties of 2.8% (for filter samples) and 3.5% (for cartridge samples); the activities range could be extended according to need. Highlights: Original calibration system for airborne 131 I monitoring devices was developed. Two types of 131 I reference samples was prepared. The activity of the produced 131 I reference sample could be easily controlled. The influence of uneven distribution of 131 I in cartridge samples was considered.