Gamma Rays from Space

Navia, C. E.; Oliveira, M. N. de

doi:10.5772/67176

Cited by 3 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gamma rays were observed in 1900 by chemist Paul Villard [34]. Gamma rays (λ < 10 pm) are electromagnetic radiations with high energy (energy >100 keV) [35].…”

Section: Gamma Radiation Treatmentmentioning

confidence: 99%

The Role of Surface Modification Methods for Sustainable Textiles

Korkmaz,

Kılınç,

Kılınç

et al. 2024

Roadmap to Sustainable Textiles

View full text Add to dashboard Cite

Sustainability aims to provide a livable future for the next generations. Studies on reducing high chemical, energy, and water consumption make significant contributions to sustainability in many sectors. The textile sector consists of many processes such as fiber production, yarn and fabric production, dyeing, and finishing processes. Each of these processes consumes a significant amount of water and energy. Cotton fiber production consumes approximately 1559 kg of fresh water per kg, and polyester fiber production consumes approximately 108 kWh of electricity per kg. Clean water consumption can be up to 200 L/kg in subsequent processes such as bleaching, dyeing, printing, and finishing. Surface modification techniques in textile production can play a role in sustainability, especially in areas such as reduction, reuse, and recycling. In this chapter, we aim to investigate the effects of surface modification techniques on reducing chemical, energy, and water consumption in textile production, improving textile performance properties, and altering the service life of textiles.

show abstract

“…Gamma rays were observed in 1900 by chemist Paul Villard [34]. Gamma rays (λ < 10 pm) are electromagnetic radiations with high energy (energy >100 keV) [35].…”

Section: Gamma Radiation Treatmentmentioning

confidence: 99%

The Role of Surface Modification Methods for Sustainable Textiles

Korkmaz,

Kılınç,

Kılınç

et al. 2024

Roadmap to Sustainable Textiles

View full text Add to dashboard Cite

show abstract

“…Usually these effects result in an increase in the flux of secondary charged particles, such as electrons and muons produced by primary gamma rays in the atmosphere. Thus, more particles can reach the ground level and be registered by the detector [25,26,29] In this paper we report the results of a search for the particle excess above the background in coincidence with Fermi LAT detection of GRBs (ΣE γ > 100 MeV) in the period from from 8 June 2014 to 28 February 2017. In this period Fermi LAT detected 46 GRB events (https : //f ermi.gsf c.nasa.gov/ssc/observations/types/grbs/lat grbs/).…”

Section: Introductionmentioning

confidence: 99%

Possible GeV counterpart at the ground level associated with Fermi LAT gamma-ray bursts

et al. 2018

View full text Add to dashboard Cite

From June 2014 to February 2017, the Fermi LAT detected 46 gamma-ray bursts (GRBs) with photon energies above 20 MeV, and the trigger coordinates of seven of them were within the FoV of New-Tupi detector located in the central region of the South Atlantic Anomaly (SAA).We show in this paper that two of these seven GRBs have a probable GeV counterpart observed at ground level by New-Tupi detector. The first is GRB 160609A, a short duration GRB with a bright emission of photons over a broad energy range extending up to GeV energies. The second is GRB 160625B, a very long duration GRB, for which the Fermi LAT detected more than 300 photons with energies above 100 MeV in the ∼1 ks interval after the GBM trigger. In the first case, the signal at New-Tupi has a nominal significance of 3.5σin the counting rate time profiles, within the T90(=5.6 s) duration on Fermi GBM. However, the effective significance is only 3.0σ. In the second case, New-Tupi detector registered at least two excess (peaks) with a nominal statistical significance of 4.8σand 5.0σat 438 s and 558 s after the trigger. The first is within the T90(=460 s) on Fermi GBM. Even so, the effective significance is only ∼2.0σ. In addition, from a Monte Carlo analysis, we show that the expected signal-to-noise ratio is compatible with the observation of GRB 160709A, only if the differential index of the GRB energy spectrum be equal or higher than −2.2 (a non-steep spectrum).

show abstract

Properties of Oxygen and Their Relationship to Einstein's Special Relativity Theory

Low¹,

Khoo²,

Koon³

et al. 2022

mijst

View full text Add to dashboard Cite

Oxygen has been shown able to be released from aqueous water when the water flows through magnetic fields. Such a production process is called magneto synthesis and it is successful when the principle of induced current took place. Oxygen produced from this newly discovered process possessed properties differently when compared to the photosynthesis process. This study can be made when the magneto synthesis process was carried out closed to the saturation point of oxygen dissolution equilibrium in aqueous water. At the saturation point, the exchange of oxygen atoms or molecules between these two processes has happened. This interchange state allowed a unique single steep-drop characteristic to be observed. The single steep-drop characteristic of the magneto synthesis process provides two pieces of evidence on the properties of oxygen; they are heavier by mass and higher by oxidative power. The unique properties as discovered are supported by Einstein’s Special Relativity Theory. In this matter, gamma-ray flashes are thought to produce when the hydrogen-electron pairs are formed. A mechanism where gamma-ray flashes could be produced was proposed and sufficient evidence for gamma-ray flashes to occur was outlined. The gamma-ray flashes are the clue in the inter-permutable between the mass and energy. This is the clue to let the special relativity theory take a place.

show abstract

Gamma Rays from Space

Cited by 3 publications

References 41 publications

The Role of Surface Modification Methods for Sustainable Textiles

The Role of Surface Modification Methods for Sustainable Textiles

Possible GeV counterpart at the ground level associated with Fermi LAT gamma-ray bursts

Properties of Oxygen and Their Relationship to Einstein's Special Relativity Theory

Contact Info

Product

Resources

About