Quantitative analysis of ancient Chinese ceramic using k ₀-instrumental neutron activation analysis

Abstract

Summary. IAEA-CU-2006-06 (ancient Chinese ceramic) has been analyzed by k 0 -INAA and the results for 31 elements are reported. Measurement on Si was done via the (n, p) reaction. The results of 23 elements are within ±10% of the target values and for 2 elements data are reported as information values. The results produce lower relative deviation if compared with the mean reported concentration values submitted by the laboratories participating in the proficiency test. The analysis involves full peak efficiency calibration of the HPGe detector for all counting geometries and characterization of neutron flux at the irradiation channel by determining thermal to epithermal flux ratio and epithermal flux shape factor using Au and Zr flux monitors. The u-score is less than 1 for majority of the elements.

Development and implementation of k0-INAA standardization at 10 MW Pakistan research reactor-1

“…All samples were counted at more than 12 cm sample-todetector height, where true coincidence correction becomes insignificant. A list of spectral interferences can be found in the previous work [4], however, there were more corrections in our present work which are listed in Table 1.…”

“…There is an increased demand for analysis of materials from varied type of media. The increased number of applications of neutron activation at these research reactors [1][2][3][4][5] are mainly due to the implementation of k 0 -INAA for Pakistan Research Reactor-2 (PARR-2), a 30 kW miniaturised neutron source reactor (MNSR) having thermal neutron flux of about 10 12 cm −2 s −1 . The flux at PARR-2 is not sufficient to provide low detection limits for most of the trace elements in biological materials.…”

Provisional Elemental Values for IAEA‐Sewage Sludge by Instrumental Neutron Activation Analysis

“…2008a). Each sample weighing up to 150 mg was wrapped in a small piece of clean paper and packed inside a polyethylene rabbit along with the Au/Zr monitors (Wasim et al. 2008b).…”

Radiological and elemental analysis of soils from Hunza in Central Karakoram using gamma-ray spectrometry and k 0-instrumental neutron activation analysis

“…The thermal and epithermal neutron flux were determined using Au/Zr flux monitors [17]. About 200 mg of sample was packed inside a polyethylene rabbit together with the flux monitors and sent for irradiation.…”