نتایج جستجو برای: photon fluence
تعداد نتایج: 74287 فیلتر نتایج به سال:
A series of 98% deuterated DKDP crystals were grown in solutions with different pD values (2.9, 3.3, 3.8, and 4.3) using the rapid growth method. Samples cut along z-direction fourth-harmonic-generation (FHG) direction which contained both pyramidal prismatic regions. The nonlinear absorption (NLA) coefficient ? was obtained Z-scan method operated at FHG wavelength (266 nm) a picosecond Nd:YAG ...
We study the distribution of long Gamma Ray Bursts in the Epeak − Eiso and in the E peak– Fluence planes through an updated sample of 76 bursts, with measured redshift and spectral parameters, detected up to September 2007. We confirm the existence of a strong rest frame correlation Epeak ∝ E 0.54±0.01 iso . Contrary to previous studies, no sign of evolution with redshift of the Epeak − Eiso co...
During the course of a day human skin is exposed to solar UV radiation that fluctuates in fluence rate within the UVA (290-315 nm) and UVB (315-400 nm) spectrum. Variables affecting the fluence rate reaching skin cells include differences in UVA and UVB penetrating ability, presence or absence of sunscreens, atmospheric conditions, and season and geographical location where the exposure occurs....
The fluence-response curves for the effect of two red pulses separated by 24 hours on the germination of Kalanchoe blossfeldiana Poelln. cv Vesuv seeds, incubated on gibberellic acid (GA(3)) are biphasic for suboptimal concentrations. The response in the low fluence range corresponds with a classical red/far-red reversible phytochrome mediated reaction. GA(3) induces an additional response in t...
This article summarizes ways to verify neutron fluence for neutron transmutation doping of silicon with phosphorus on the LVR-15 reactor. Neutron fluence is determined using activation detectors placed along the crystal in a strip or encapsulated in a rod holder. Holders are placed at the centre of a water-filled capsule or in an aluminum or silicon ingot that simulates a real single crystal. I...
Purpose: The aim of this study is to investigate the depth-dependent detector response detailed thimble air-filled ionization chambers by calculating spectral charged particle fluence correction factors at different depths in water. Those will help understand, how varies and what kind influences disparate effects have on response. Methods: cema-approach can be used obtain fluence-based for vari...
We present a reanalysis of the Swift Burst Alert Telescope (BAT) data around radio detection FRB 131104. Possible evidence gamma-ray counterpart was presented by DeLaunay et al. However, based on our analysis using all available BAT data, no significant emission is found in either temporal or image domain. place 5σ fluence upper limit 3.3 × 10−6 erg cm−2 and 2.7 (15–150 keV) with an integration...
The transmission of silicon crystals irradiated by 24 GeV/c protons and reactor neutrons has been measured for photon energies, $E{\gamma}$, between 0.95 1.3 eV. From the data absorption coefficient ${\alpha}$ is calculated, from ${\alpha}(E_{\gamma})$ fluence dependence band-gap energy, $E_{gap}$, energy transverse optical phonons, $E_{ph}$, determined. It found that within experimental uncert...
A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted Pierre Auger Observatory. Due distinctive properties photon interactions and background expected hadronic showers, a subset most interesting GW selected based on their localization quality distance. Time periods 1000 s arou...
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