title: The performance determination of a Compton-suppression spectrometer and the measurement of the low level radioactive samples.
abstract: The performance of a new Compton-suppression spectrometer consisting of one HPGe detector and three NaI(Tl) detectors was studied. The peak-to-Compton ratio for a (137)Cs source is 1150 and the integral background count rate is 0.3 5s(-1) over the energy interval 20-3000 keV. The spectrometer was used to acquire both Compton-suppressed and non-suppressed spectra of aerosol samples collected in Beijing following the Fukushima nuclear accident.
authors.affiliation: CTBT Beijing National Data Centre and Radionuclide Laboratory, China. yuanqing.fan@nrl.org.cn
authors.forename: Yuan-Qing
authors.initials: YQ
authors.lastname: Fan
authors.forename: Shi-Lian
authors.initials: SL
authors.lastname: Wang
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Yun-Gang
authors.initials: YG
authors.lastname: Zhao
authors.forename: Xin-Jun
authors.initials: XJ
authors.lastname: Zhang
authors.forename: Huai-Mao
authors.initials: HM
authors.lastname: Jia
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D062406:Fukushima Nuclear Accident; D007564:Japan; D011829:Radiation Dosage; D011874:Radiometry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013051:Spectrometry, Gamma / Q000295:instrumentation*
chemical_list: D000396:Air Pollutants, Radioactive
keywords: Activity; Activity concentration; Aerosol sample; Compton-suppression spectrometer; Peak-to-Compton ratio