Nuclear and Atomic Physics

1602 Submissions

[8] viXra:1602.0302 [pdf] replaced on 2016-03-21 22:48:15

Theoretical Determination of Fundamental Physical Constants

Authors: Valery B. Smolensky
Comments: 7 Pages.

The article presents a theoretical method of determination of fundamental physical constants. The results of analytical calculations, including: the fine structure constant, the wave length of Compton, the electron mass, elementary charge, Planck constant, Planck mass, length and time, Planck, Newton's gravitational constant, the lifetime of the neutron.
Category: Nuclear and Atomic Physics

[7] viXra:1602.0244 [pdf] submitted on 2016-02-20 07:13:34

A Unified Approach for Nuclear Structure

Authors: Ranjeet Dalal
Comments: 14 Pages.

The nuclear physics area is plagued by variety of sophisticated models based upon initial ideas of liquid drop model or independent particle shell model. One set of models are used to understand binding energy and fission mechanism while the others are used to understand the nuclear shell structure and its implications. Further, some of the basic assumptions required for these models are apparently contradictory to each other. These models have their limited application area and can be used to account certain nuclear properties only. In present work, an unified approach for nuclear structure is proposed which can account the nuclear binding energy along with the nuclear shell structure for all ranges of nuclei. This model is based upon recent observations and do not use arbitrary assumptions like spin-orbit coupling term. It can be used to calculate various nuclear properties like binding energy, nuclear magnetic moments, quadrupole moments, similar excitation levels for mirror nuclei, emergence of new magic numbers for neutron rich nuclei or correlated two proton/neutron emission. Interestingly, it provides an straightforward explanation for asymmetric/symmetric fission fragment distribution in spontaneous/lowenergy fission events for heavy nuclei. Although, the proposed model is supported by many experimental evidences, further suggestions are given for verification of the approach.
Category: Nuclear and Atomic Physics

[6] viXra:1602.0185 [pdf] submitted on 2016-02-16 06:54:59

A Technique for Making Nuclear Fusion in Solids

Authors: R. Wayte
Comments: 23 Pages. Accepted for publication in J. Condensed Matter Nuclear Science 18 (2016) p36

A technique is described for making nuclear fusion at room temperature by compressing a powder mixture comprising a deuteride and catalytic material. The result is explosive beyond known chemical reaction for the materials.
Category: Nuclear and Atomic Physics

[5] viXra:1602.0138 [pdf] submitted on 2016-02-12 04:52:12

The Lifetime of the Neutron

Authors: Valery B. Smolensky
Comments: Pages.

В статье представлены теоретическое обоснование и экспериментальные подтверждения обнаруженного автором свойства нейтрона – наличие у него двух разных времён жизни. Приведено аналитическое выражение для определения времени жизни нейтрона находящегося в долгоживущем nL и короткоживущем nS состояниях. Приведено сравнение результатов теоретических расчётов с данными, представленными в открытом доступе во всемирной сети Интернет.
Category: Nuclear and Atomic Physics

[4] viXra:1602.0022 [pdf] submitted on 2016-02-02 07:55:39

Determining the Optical and Radiation Characteristics of the Glass of Cathode Ray Tubes (CRTs) and the Capability to Produce Radiation Shielding Glass

Authors: Abdullah Shehada, Mohammad Hassan Kharita, Siraj Yousef
Comments: 8 Pages

A new method for recycling the glass of Cathode Ray Tubes (CRTs) is presented in this paper. The glass from CRTs is suggested to be used as row materials for producing radiation shielding glass. Cathode ray tubes glass contains considerable amounts of environmentally hazardous toxic waste namely heavy metal oxides such as lead oxide (PbO). This makes CRTs glass a favorable choice to be used as row material for Radiation shielding materials, as heavy metal oxides increases its density, which make the produced glass nearly equivalent to commercially available shielding glass. CRTs glasses have been characterized to determine the heavy oxides content, density, refractive index, and radiation shielding properties for different gamma rays energies empirically by using the source Co-60 and theoretically by using the code XCOM. The measured and the calculated values were in a good compatibility. The effect of irradiation on the transparency for each part of the CRTs glass has been studied. Results showed that some parts of CRTs glass are more resistant to radiation than others. The study has shown that the glass of cathode ray tubes can be recycled as a radiation shielding glass at least in some applications.
Category: Nuclear and Atomic Physics

[3] viXra:1602.0021 [pdf] submitted on 2016-02-02 08:03:55

Studying The Physical Optical and Radiation Shielding Properties of Radiation Shielding Glass Made of Glass of Cathode Ray Tubes and Heavy Metal Oxides

Authors: Abdullah Shehada, Mohammad Hassan Kharita, Siraj Yousef
Comments: 21 Pages

The purpose of the research in this paper is to produce a radiation shielding glass by recycling glass of cathode ray tubes (CRTs) which come from used computers and TV sets and adding some heavy metal oxides as lead oxide (PbO) to increase the density, and using some other oxides such as potassium oxide (K2O) as a modifier for the resulted glass. Because of, the glass of cathode ray tubes (CRTs) contains some heavy oxides where the part Funnel contains about 20 % of lead oxide (PbO) while the part Panel contains about 10 % of barium oxide (BaO) and the same percent for strontium oxide (SrO). So, these glass can be used as a radiation shielding glass for nuclear and radiation applications. In this paper, the glass of cathode ray tubes (CRTs) have been used as powdered glass to make new samples with lead oxide (PbO) and potassium oxide (K2O). Then, the optical and radiation properties of these samples have been investigated. The effects of 1 % added of cerium oxide (CeO2) on the radiation resistant and optical spectra differences have been measured. In addition, this research has environmental benefits that appear in reducing the toxic heavy metals that included in CRT glass such as lead, barium, strontium and other metals. This paper discuses a new a approach to recycle the CRT glass. Many samples of glass have been prepared by using the powdered glass of CRT and lead oxide (PbO) as lead material in these mixtures to increase density. Also the potassium oxide (K2O) has been added to some mixtures as a modifier oxide for decreasing melting temperatures and improving optical and technical characteristics of these glass samples. As a result, same samples had high density about 5.38 g.cm3. The glass transition temperatures (Tg) and the structure of these samples have been investigated by using the differential temperature analysis (DTA) and X-Ray diffraction (XRD) respectively. The optical transmission spectra have been studied, and the transmission studied by using UV-Visible spectrometer and the optical transmission reached to about 85 % in the visible spectrum range. Then, attenuation coeffcients have been measured for photons emitted by Co60:After that, the optical transmission before and after irradiation have been investigated. The results appeared that these spectra varying by radiation doses and related to the type of used glass in these samples. Where the transmission decreased about 20 % to 50 % in the beginning of the spectrum range from 400 nm to 600 nm at exposure doses that reached to 5 kGy and high dose rate 1 kGy/h. These spectra were not varying in some samples that contain the glass panel. These results agree with similar studies where the density reached to 5.2 g.cm3 and the refractive index equal to 1.8, and the value of transmission closed to 85 %. In addition, the decreases of transmission spectra also the same when it exposure to radiation doses.
Category: Nuclear and Atomic Physics

[2] viXra:1602.0020 [pdf] submitted on 2016-02-02 08:45:11

The Klein-Nishina Formula in Qed and Anti Compton Effect (2).

Authors: Abdullah Shehada
Comments: 6 Pages

When the photon beam is coming on the material , it's will be attenuation in this material ( the number of the photons will be decreased when it's go out the material ) this attenuation is related with the energy 's photon and also the kind of the material( density ). This attenuation is the result of many kinds of reactions between the photon and the material 's electrons ( mainly ) , one of this kinds is : Compton reaction. In Compton effect : the photon is loses part of it's energy in each reaction with the electrons , and this photon will disappear when it loses all of it's energy . But in this work the opposite is occurs , wherein the cross-section may takes negative values at some values of the ration between photon energy and electron mass energy. consequently , by using the exponential equation we will find the photons in the beam is increases ( exponential increases ) ( the number of photons is increases and maybe also the photon energy do ) , so we obtained the same effect as the laser effect , and we can use this effect in many applications
Category: Nuclear and Atomic Physics

[1] viXra:1602.0019 [pdf] submitted on 2016-02-02 08:52:04

Anti Compton Effect

Authors: Abdullah Shehada
Comments: 7 Pages

As a result of anticompton effect (inverscompton)effect, we can find in the plasma ( example ) the following two important phenomena : 1- if the plasma was not perfect ionizing ( including some neutral atoms ) we can find one of the atom's electron exist in energy band which not exist in the natural cases . 2- we can find some of the photons has large energy bigger than the another medium particle's energy and we can find some of the electrons has large energy bigger than the another medium particle's energy . But in the resultant ; the usual Compton effect will cancel most of anti Compton effect ( not all ) in the continuous scattering interactions , so this effect ( anti Compton ) is not noticed in the usual cases , because the usual Compton effect has ranges bigger than ( max 3 times ) anti Compton's ranges to occur ( from the figure (3)) .
Category: Nuclear and Atomic Physics