Radiation protective qualities of some selected lead and bismuth salts in the wide gamma energy region

Sayyed, M.I.; Akman, F.; Kaçal, M.R.; Kumar, Ashok

doi:10.1016/j.net.2018.12.018

Cited by 32 publications

(18 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…× 1.5 in. NaI (Tl) crystal with an energy resolution of 12.5% at 662 keV γ‐rays from the decay of 137 Cs was used for the measurements of radiation attenuation . The distance between the 137 Cs γ‐ray source and the specimen was 129.14 cm, and the distance between the specimen and the detector was 5 cm (Figure ).…”

Section: Methodsmentioning

confidence: 99%

“…NaI (Tl) crystal with an energy resolution of 12.5% at 662 keV γ-rays from the decay of 137 Cs was used for the measurements of radiation attenuation. [24][25][26][27][28][29] The distance between the 137 Cs γ-ray source and the specimen was 129.14 cm, and the distance between the specimen and the detector was 5 cm (Figure 1). The experimental accuracy was confirmed by measuring the attenuation coefficient of an aluminum slab with a thickness of 1 cm.…”

Section: γ-Ray Shielding Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Multilayer Structuring of Nonleaded Metal (BiSn)/Polymer/Tungsten Composites for Enhanced γ‐Ray Shielding

et al. 2020

View full text Add to dashboard Cite

To effectively attenuate unrecognized and/or unwanted exposures to high‐energy γ‐rays which leads to occupational hazards when accumulated in a wide range of industries, nonleaded metal (bismuth(Bi)‐tin(Sn))/polymer and tungsten (W) composites are prepared and tested. A eutectic alloy, BiSn, with a low melting temperature of 139 °C, is applied for the first time to prepare a γ‐ray shielding material. Compounding of the BiSn alloy/polymer is conducted in a twin screw mixer/extruder by exploiting the alloy's low melting temperature. Multilayer BiSn/polymer composites are prepared by pressing the extruded composites. The γ‐ray shielding efficiency of the composite is elucidated on the basis of the K‐edge theory. To make a thinner but more efficient composite, W flakes are laminated onto the BiSn/polymer composite sheet. The produced (BiSn/polymer)/W composite sheet exhibits strong attenuation of γ‐rays, which is found to follow the Beer–Lambert law. A multilayer (BiSn/polymer)/W laminate can offer both a sufficient thickness with flexibility and an effective shielding against γ‐rays to meet the requirements for protective clothing or protective equipment. This work demonstrates that (BiSn/polymer)/W laminates can be used as a reliable Pb‐substitution material to protect the human body from the high‐energy γ‐rays.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: γ-Ray Shielding Measurementsmentioning

confidence: 99%

Multilayer Structuring of Nonleaded Metal (BiSn)/Polymer/Tungsten Composites for Enhanced γ‐Ray Shielding

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Shielding materials have been developed to protect different life forms from dangerous radioactivity [17]. Radiation shielding compounds with heavy nucleus and high in density, such as metals and cement structures, have been used to guard against radiation damage [18]. www.aetic.theiaer.org For handling hazardous wastes, nuclear plants, personal devices, electric parts, and preventing personnel from being subjected to radiation, some safety authorities have radiation control solutions and shielding materials [19][20].…”

Section: Radiation Shielding Design and Dose Estimation For Radiation Protection Purposesmentioning

confidence: 99%

Monte Carlo Computational Software and Methods in Radiation Dosimetry

Chatzisavvas¹,

Priniotakis²,

Papoutsidakis³

et al. 2021

AETiC

View full text Add to dashboard Cite

The fast developments and ongoing demands in radiation dosimetry have piqued the attention of many software developers and physicists to create powerful tools to make their experiments more exact, less expensive, more focused, and with a wider range of possibilities. Many software toolkits, packages, and programs have been produced in recent years, with the majority of them available as open source, open access, or closed source. This study is mostly focused to present what are the Monte Carlo software developed over the years, their implementation in radiation treatment, radiation dosimetry, nuclear detector design for diagnostic imaging, radiation shielding design and radiation protection. Ten software toolkits are introduced, a table with main characteristics and information is presented in order to make someone entering the field of computational Physics with Monte Carlo, make a decision of which software to use for their experimental needs. The possibilities that this software can provide us with allow us to design anything from an X-Ray Tube to whole LINAC costly systems with readily changeable features. From basic x-ray and pair detectors to whole PET, SPECT, CT systems which can be evaluated, validated and configured in order to test new ideas. Calculating doses in patients allows us to quickly acquire, from dosimetry estimates with various sources and isotopes, in various materials, to actual radiation therapies such as Brachytherapy and Proton therapy. We can also manage and simulate Treatment Planning Systems with a variety of characteristics and develop a highly exact approach that actual patients will find useful and enlightening. Shielding is an important feature not only to protect people from radiation in places like nuclear power plants, nuclear medical imaging, and CT and X-Ray examination rooms, but also to prepare and safeguard humanity for interstellar travel and space station missions. This research looks at the computational software that has been available in many applications up to now, with an emphasis on Radiation Dosimetry and its relevance in today's environment.

show abstract

“…The experimental uncertainty of attenuation coefficient measurements for the fabricated glasses has been estimated by relation [29]:…”

Section: Gamma-ray Transmission Measurementsmentioning

confidence: 99%

Gama Işınları için Kolemanit Minerali Katkılı Koruyucu Yeni Cam Malzeme

Yorgun¹

2019

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

View full text Add to dashboard Cite

In this study, (Li2B4O7)(100-x)-(Colemanite)x glass systems (where x=10, 20, 30 and 40 wt %) were fabricated via melt quenching technique. The radiation shielding parameters of produced glasses such as mass attenuation coefficient (µ ), effective atomic number (Zeff), electron density (Nel), half value layer (HVL) and mean free path (MFP) were measured experimentally for 81, 276, 302, 356, and 383 keV gamma ray energies with Hp-Ge detector. Also, WinXCom software was employed for theoretical calculation above radiation shielding parameters of glasses for 1 keV to 10 5 MeV energy region. It was seen that the experimental and theoretical results are good agreement with each other. The obtained results revealed that when percentage of colemanite mineral has been increased in the glass system, µ , Zeff and Nel values increase. Furthermore, it was observed that the values of HVL and MFP, in contrary, decreases with increasing colemanite mineral percent. In specific, among the investigated glasses, lithium borate glass with 40 percentage colemanite mineral has the highest value of µ , Zeff and Nel, however, it has the lowest HVL and MFP. Therefore, lithium borate glass with 40 percentage colemanite mineral has given the best results for gamma radiation shielding purpose among the investigated glass systems in this work.

show abstract

Radiation protective qualities of some selected lead and bismuth salts in the wide gamma energy region

Cited by 32 publications

References 32 publications

Multilayer Structuring of Nonleaded Metal (BiSn)/Polymer/Tungsten Composites for Enhanced γ‐Ray Shielding

Multilayer Structuring of Nonleaded Metal (BiSn)/Polymer/Tungsten Composites for Enhanced γ‐Ray Shielding

Monte Carlo Computational Software and Methods in Radiation Dosimetry

Gama Işınları için Kolemanit Minerali Katkılı Koruyucu Yeni Cam Malzeme

Contact Info

Product

Resources

About