High-voltage cable plug and socket connections for medical X-ray equipment

Abstract This study evaluated the potential of locally sourced-ceramic raw materials in Tanzania, Pugu kaolin, Same clay, vermiculite and feldspar, for production of high voltage porcelain insulators. The chemical, mineral phases and microstructural characterization of raw materials and porcelain samples were carried out using the X-ray fluorescence, X-ray diffraction, and scanning electron microscopy techniques, respectively. The mineral phases of the fired porcelain sample identified were mullite and quartz. The porcelain bodies were fabricated using the dry pressing method by varying the composition of the selected ceramic raw materials. The physical-mechanical properties and dielectric strength were measured for each porcelain sample. The sample with the composition of 20% Pugu kaolin, 20% Same clay, 20% vermiculite and 40% feldspar was found to have the dielectric strength of 50.8 kV.mm-1, bending strength of 20 MPa and water absorption of 0.46%, which satisfies the main requisite properties for high voltage porcelain insulators.

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MODELAGEM ELÉTRICA DOS TUBOS DE RAIOS-X UTILIZADOS EM SISTEMAS DE FLUOROSCOPIA COM O OBJETIVO DE MINIMIZAR A RADIAÇÃO TRANSMITIDA AO PACIENTE

e-xacta ◽

10.18674/exacta.v10i1.2141 ◽

2017 ◽

Vol 10 (1) ◽

pp. 53

Author(s):

Raghunatha Faria Duarte ◽

Bruno Andrade de Oliveira ◽

Euzebio De Sousa

Keyword(s):

High Voltage ◽

Potential Difference ◽

X Rays ◽

X Ray ◽

Voltage Generator ◽

Electric Modeling ◽

High Voltage Generator

A finalidade deste artigo foi demonstrar os processos e parâmetros e que são necessários para o funcionamento do tudo de raios-X na utilização em técnica de fluoroscopia, abordou-se a parte construtiva do Gerador de alta tensão e do tubo de raios-X e a forma de como ocorre a liberação dos raios-X que incide ao paciente durante o exame, a condição de como a corrente e a diferença de potencial geram os raios-X que incide ao paciente durante o procedimento e o que uma exposição desnecessária a tais raios pode ser prejudicial em quantidades que não agregam imagem ao exame, desta forma criou-se uma proposta de modelagem elétrica de um tubo de raios-X em que abordou uma alternativa para minimizar a radiação que atravessa ao paciente sem a geração de imagem útil.ABSTRACT<pre>The purpose of this article was to demonstrate the processes and parameters that are necessary for the operation of all X-rays in the use in fluoroscopy technique, the constructive part of the High Voltage Generator and the X-ray tube and the How the X-ray release occurs to the patient during the examination, the condition of how the current and potential difference generates the X-rays incident to the patient during the procedure and what unnecessary exposure to such rays May be detrimental in amounts that do not add an image to the examination. In this way, a proposal was made for the electric modeling of an X-ray tube, in which it addressed an alternative to minimize the radiation that passes through the patient without generating useful images.</pre>

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Optical and structural study for DLC thin films prepared by plasma jet

Iraqi Journal of Physics (IJP) ◽

10.30723/ijp.v17i40.405 ◽

2019 ◽

Vol 17 (40) ◽

pp. 50-58

Author(s):

S. J. Kadhem

Keyword(s):

Thin Films ◽

High Voltage ◽

Plasma Torch ◽

Energy Gap ◽

Plasma Jet ◽

Optical Energy Gap ◽

X Ray ◽

Xrd Diffraction ◽

Fourier Transformation Infrared Spectroscopy ◽

Uv Visible

Diamond-like carbon (DLC) homogeneous thin films were deposited from cyclohexane (Ccyclohexane (Ccyclohexane (Ccyclohexane (C cyclohexane (Ccyclohexane (Ccyclohexane (C cyclohexane (Ccyclohexane (C 6H12 ) liquid by using a plasma jet system which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 kv and kv and kv and kv and frequency 28 frequency 28frequency 28 frequency 28frequency 28frequency 28frequency 28frequency 28 kHz. kHz. The optical and structural properties and chemical bonding of these films were investigated. In this work, the effect of changing the distance between the substrate and the plasma torch (2, 2.5 and 3 cm) was studied. The flow rate of argon gas which used to generate the plasma was fixed (0.5 L/min). These films were characterized by UV–Visible spectrophotometer, X-ray diffractometer (XRD) and scanning electron microscopy (SEM) and Fourier transformation infrared spectroscopy (FTIR). The maximum absorption (λmax) appears around 312, 298.3 and 293.2 nm at the three distance between plasma torch and the substrate 2.5, 2 and 3 cm, respectively. The values of the optical energy gap are 3.47, 3.65 and 3.76 eV at a different distance (2, 2.5 and 3cm), respectively. In XRD diffraction pattern, The occurrence of diamond peaks and graphite peaks in the x-ray spectrum for these films Indicates that there is an occurrence of local ordered sp3 and sp2 for carbon domains and graphite respectively.

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