Archive:: World Journal of Applied Physics:: Science Publishing Group

Volume 2, Issue 3, August 2017

Geo-electrical Survey for Groundwater Potential of Biu and Environs, North Eastern Nigeria

Nggada Ibrahim Sikami, Nur Ahmed

Issue: Volume 2, Issue 3, August 2017

Pages: 59-70

Received: 26 July 2017

Accepted: 16 August 2017

Published: 5 September 2017

DOI: 10.11648/j.wjap.20170203.11

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Abstract: Thirty-six Vertical Electrical Sounding (VES) were carried out to evaluate groundwater potential and aquifer protective capacity of the overburden units using Schlumberger configuration with maximum current electrode of 150m using Petrozenith PZ 02b Terrameter. Data was analyzed using Interpex IX1-D, H-curve type dominates the study area with 41%, ... Show More

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The Effect of Cladding Creep on the Initiation of GTRFW

William Richard Campbell, Jerry Chen

Issue: Volume 2, Issue 3, August 2017

Pages: 71-76

Received: 20 July 2017

Accepted: 1 August 2017

Published: 6 September 2017

DOI: 10.11648/j.wjap.20170203.12

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Abstract: Creep plays a critical role in the stress relaxation of a PWR fuel assembly, which causes the initiation of slip and fretting wear. In this paper, the creep down of grid and cladding is simulated using a 3D FEA model. A mechanism-based creep model is incorporated in the structural analysis. The evolution of stress as well as its effects on the slip... Show More

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Analytic Spin and Pseudospin Solutions to the Dirac Equation for the Quadratic Exponential-Type Potential Plus Eckart Potential and Yukawa-Like Tensor Interaction

Nzeata-Ibe Nelson, Benedict Iserom Ita, Innocent Joseph, Pigwe Isa Amos, Thomas Odey Magu, Louis Hitler

Issue: Volume 2, Issue 3, August 2017

Pages: 77-84

Received: 2 August 2017

Accepted: 21 August 2017

Published: 7 September 2017

DOI: 10.11648/j.wjap.20170203.13

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Abstract: We solve the Dirac equation for the quadratic exponential-type potential plus Eckart potential including a Yukawa-like tensor potential with arbitrary spin–orbit coupling quantum number κ. In the framework of the spin and pseudospin (pspin) symmetry, we obtain the energy eigenvalue equation and the corresponding eigenfunctions in closed form by usi... Show More

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Study of Radiation Pollution of Groundwater in Al-Tuz, Salah Al-Din Governorate, Iraq

Asia Hameed Al-Mashhadani, Huda Saddi Ali, Karar Sameen Ali

Issue: Volume 2, Issue 3, August 2017

Pages: 85-91

Received: 31 July 2017

Accepted: 8 August 2017

Published: 13 September 2017

DOI: 10.11648/j.wjap.20170203.14

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Abstract: This paper presents an evaluation radiation pollution of groundwater and the radioactive contamination from natural radiation sources using sodium iodide detector by measuring gamma lines emitted from radioisotopes. The radioactivity of the radioisotopes radium (Ra²²⁶), Actinium (Ac²²⁸) and potassium (K⁴⁰) were identified in the studied samples, wh... Show More

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A Method to Reveal ¹³⁷Cs Gamma Spectrum by a Multi-Pixel Photon Counter

Elif Ebru Ermis, Cuneyt Celiktas

Issue: Volume 2, Issue 3, August 2017

Pages: 92-96

Received: 14 August 2017

Accepted: 29 August 2017

Published: 13 September 2017

DOI: 10.11648/j.wjap.20170203.16

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Abstract: An MPPC (multi-pixel photon counter) module which is composed of silicon photomultipliers (Si-PM) can be used for the photon detection and measurement. However, gamma energy spectrum could not be obtained when the module was only used. Therefore, the study was focused on finding out gamma energy spectrum of ¹³⁷Cs and developed a spectrometer which ... Show More

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