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Publication Date

Fri Sep 22 2017

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Volume

21

Issue Number

1

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Radon-Distribution Measurements With CR-39, LR-115 And CN-85 DeteCtors

K. H.

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The aim of this work is to determine radon and its decay product concentratiQns indoor and outdoor in different areas in north and middle areÂ·a of Iraq by using nuclear trak detectors , CR-39 , CN- 85 andLR-115. -

For CR-39 detectors , the highest radon concentration was

(64.07Bq/m3)indoor and (52.4 Bq/m3)

outdoor , in Autumn season .

And the concentration of that radon and its decay product indoor were greater than outdoor . temperature seems to playsapredominant role in the formation of radon concentration .

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Publication Date

Thu Apr 06 2023

Journal Name

Materials Science Forum

Study of the Effect of Ce 3+ on the Gas Sensitivity and Magnetic Properties of CuxCe0.3-XNi0.7Fe2O4 Ferrite Nanoparticles

Tagreed M.

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This study includes the preparation of the ferrite nanoparticles Cu_xCe_0.3-XNi_0.7Fe₂O₄ (where: x = 0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3) using the sol-gel (auto combustion) method, and citric acid was used as a fuel for combustion. The results of the tests conducted by X-ray diffraction (XRD), emitting-field scanning electron microscopy (FE-SEM), energy-dispersive X-ray analyzer (EDX), and Vibration Sample Magnetic Device (VSM) showed that the compound has a face-centered cubic structure, and the lattice constant is increased with increasing Cu ion. On the other hand, the compound has apparent porosity and spherical particles, and t

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