Search results for "Accelerator physics"
showing 10 items of 1294 documents
Wavelength-codified fiber laser hydrogen detector
2005
We report a scheme for an optical hydrogen detector that codifies the information in wavelength. The system is based on an erbium-doped fiber laser with two coupled cavities and a Palladium-coated tapered fiber within one of the laser cavities. The tapered fiber acts as the hydrogen-sensing element. When the sensing element is exposed to a hydrogen atmosphere, its attenuation decreases changing the cavity losses. This change leads the system to switch lasing from the wavelength of the auxiliary cavity to the characteristic wavelength of the cavity which contains the sensing element. The detection level can be shifted by adjusting the reflective elements of the cavity containing the sensing …
The BaBar detector: Upgrades, operation and performance
2013
The BABAR detector operated successfully at the PEP-Il asymmetric e(+) e(-) collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking.
Spatiotemporal Nonlinear Beam Shaping
2016
The reshaping of multimode waves in optical fibers is a process where the spatial and spectral degrees of freedom are inherently coupled. Our experiments demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to supercontinuum generation with a uniform bell-shaped spatial beam profile.
Spatiotemporal pulse shaping with multimode nonlinear guided waves
2018
We experimentally and theoretically investigate complex temporal pulse reshaping that accompanies Kerr beam self-cleaning in multimode optical fibers. We also study the output beam shape dependence on initial conditions.
Novel in-line fiber-optic filters and polarisers
2005
Novel in-line devices, based on a tapered fiber whose uniform waist has been metal-coated, are reported. The resonant excitation of a surface plasma mode of the metal film allows for the design of wavelength filters and polarisers
Quadrupole moments of odd-A 53−63Mn: Onset of collectivity towards N=40
2016
Physics letters / B 760, 387 - 392 (2016). doi:10.1016/j.physletb.2016.07.016
"Table 24" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.200 to 0.250 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 22" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.100 to 0.150 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 23" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.150 to 0.200 radians. The errors are the square-root of the diagonal elements of the covariant matrix.
"Table 21" of "Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton"
2010
Differential cross section for proton production with a proton beam and Carbon target in the angular range 0.050 to 0.100 radians. The errors are the square-root of the diagonal elements of the covariant matrix.