scholarly journals The Characterisation of an Alpha Spectrometry System using a Certificated Standard Source

2021 ◽  
Author(s):  
Nurgül HAFIZOĞLU
Keyword(s):  
Alpha Spectrometry ◽  
Standard Source

Source preparation by electrodeposition for uranium measurement via alpha spectrometry

2020 ◽  
Author(s):  
V. S. Semenishchev ◽  
S. V. Mikhalev ◽  
S. M. Titova ◽  
A. S. Malyshev
Keyword(s):  
Alpha Spectrometry ◽  
Source Preparation

scholarly journals Field evaluation of water or citrate soluble phosphorus in modified phosphate rocks for soybean

2001 ◽  
Vol 58 (1) ◽  
pp. 165-170 ◽  
Author(s):  
Luís Ignácio Prochnow ◽  
José Francisco da Cunha ◽  
Ariel Francisco Candiotti Ventimiglia
Keyword(s):  
Field Evaluation ◽  
Water Soluble ◽  
Ammonium Citrate ◽  
Low Grade ◽  
Triple Superphosphate ◽  
Single Superphosphate ◽  
Standard Source ◽  
Extractable P ◽  
P Fertilizers ◽  
P Sources

Ten P fertilizers were collected (commercial fertilizers) or synthesized (experimental sources) in order to obtain single superphosphates varying in water and citrate solubility. A standard source of P was also produced by crystallization of the water-soluble fraction of a triple superphosphate. Eleven P sources were band applied to a medium textured Xanthic Hapludox, in Bahia, Brazil (low content of resin-extractable P) at a rate of 80 kg ha-1 of NAC + H2O (neutral ammonium citrate plus water) soluble P2O5, with soybean as the crop which was grown to maturity. A check plot (control) was included in the study. Three of the P sources [single superphosphate produced from Araxa phosphate rock (PR), low-grade single superphosphate produced from Lagamar PR and the standard source of P] were also applied at rates to provide 40 and 120 kg ha-1 of NAC + H2O soluble P2O5. Yield of soybean was evaluated by analysis of variance with mean comparison performed utilizing LSD lines, considering the P sources applied at a rate of 80 kg ha-1 of P2O5 + control. Regression procedures were used to study the relation between yield of soybean and rates of P2O5. The fertilizers tested performed equally well as a source of P for soybean. The level of water-soluble P did not influence fertilizer performance.

Evaluation of the natural and man-made radioactivity levels around the Egyptian nuclear facilities

2001 ◽  
Vol 89 (3) ◽  
Author(s):  
H.M. Diab ◽  
M.S. El-Tahawy ◽  
S.A.M. El-Mongy
Keyword(s):  
Soil Water ◽  
Pilot Plant ◽  
Alpha Spectrometry ◽  
Monitoring And Evaluation ◽  
Nuclear Facilities ◽  
Research Reactors ◽  
Radioactivity Level ◽  
Plant Samples ◽  
Fuel Fabrication ◽  
Radioactivity Levels

The monitoring and evaluation of the radioactivity levels around the Egyptian nuclear facilities located at Inshas, near Cairo, namely, two research reactors, an R & D fuel fabrication laboratory and a fuel fabrication pilot plant, were carried out. Soil, water and plant samples were collected from locations near and around the facilities and analyzed by using gamma, laser and alpha spectrometry. A preoperational radiological map for the new reactor site was established. The results of the postoperational monitoring around the first reactor show that the 38year operation of this reactor did not increase the radioactivity level around the facility. The observed man-made

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