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We report the generation of MeV temperature electrons using sub-terawatt laser systems with a liquid methanol jet as a target. Remarkably, even at laser intensities of 1016W/cm2, liquid cylindrical (2D) 15 micron methanol jets produce…

Materials to be deployed in space applications have to undergo a variety of different test scenarios, simulating actual space conditions. Among these materials solar photovoltaic cells, optics, meta-materials and more will be directly…

A sealed high gas pressure detector working in pure argon is assembled. It consists of a 5 cm $\times$ 5 cm PCB THGEM (THick Gaseous Electron Multipliers). The detector structure and experimental setup are described. The performances under…

Instrumentation and Detectors · Physics 2016-12-26 Yu-Ning Zhang , Qian Liu , Hong-Bang Liu , Yi-Gang Xie , Xiao-Rui Lyu , Shi Chen , Wen-Qian Huang , Dao-Jin Hong , Yang-Heng Zheng

Direct laser acceleration has proven to be an efficient source of high-charge electron bunches and high brilliance X-rays. However, an analytical description of the acceleration in the interaction with varying plasma density targets is…

Plasma Physics · Physics 2024-12-19 Robert Babjak , Bertrand Martinez , Miroslav Krus , Marija Vranic

We report direct observations of the scattering potentials in a two-dimensional electron-gas using electron-beam diffaction-experiments. The diffracting objects are local density-fluctuations caused by the spatial and charge-state…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 J. J. Koonen , H. Buhmann , L. W. Molenkamp

A lead-glass hodoscope calorimeter that was constructed for use in the Jefferson Lab Real Compton Scattering experiment is described. The detector provides a measurement of the coordinates and the energy of scattered photons in the GeV…

The superconducting electron accelerator S-DALINAC enables electron scattering experiments with low momentum transfer and high energy resolution. In order to perform experiments on helium with high precision and high luminosity, a…

The utilization of polarized targets in scattering experiments has become a common practice in many major accelerator laboratories. Noble gases are especially suitable for such applications, since they can be easily hyper-polarized using…

Optics · Physics 2015-07-20 Gretchen Phelps , Josh Abney , Mark Broering , Wolfgang Korsch

The g2p/GEp experiments used a solid NH3 polarized target, where the polarization of the target is sensitive to temperature and radiation. The beam current was limited to 5-100 nA during the experiment to avoid too much depolarization of…

Instrumentation and Detectors · Physics 2016-06-28 Pengjia Zhu

An investigation of the multi-hundred MeV electron beam yield (charge) form helium, nitrogen, neon and argon gas jet plasmas in a laser-plasma wakefield acceleration experiment was carried out. The charge measurement has been made via…

At Shanghai Jiao Tong University, we have established a research laboratory for advanced acceleration research based on high-power lasers and plasma technologies. In a primary experiment based on the laser wakefield acceleration (LWFA)…

Plasma Physics · Physics 2014-09-11 Ahmed M. M. Elsied , Nasr A. M. Hafz , Song Li , Mohammad Mirzaie , Thomas Sokollik , Jie Zhang

The ambipolar electrostatic potential rising along the magnetic field line from the grounded wall to the centre in the linear gas dynamic trap, rules the available suppression of axial heat and particle losses. In this paper, the visible…

Plasma Physics · Physics 2021-07-07 A. Lizunov

Short-pulse intense lasers have the potential to model extreme astrophysical environments in laboratories. Although there are diagnostics for energetic electrons and ions resulting from laser-plasma interactions, the diagnostics to measure…

In 2018, a test run with muons in the North Area at CERN was performed, running parasitically downstream of the COMPASS spectrometer. The aim of the test was to investigate the elastic interactions of muons on atomic electrons, in an…

A quality assurance and performance qualification laboratory was built at McGill University for the Canadian-made small-strip Thin Gap Chamber (sTGC) muon detectors produced for the 2019-2020 ATLAS experiment muon spectrometer upgrade. The…

A Compton polarimeter has been installed in Hall A at Jefferson Laboratory. This letter reports on the first electron beam polarization measurements performed during the HAPPEX experiment at an electron energy of 3.3 GeV and an average…

High Energy Physics - Experiment · Physics 2010-05-27 M. Baylac , E. Burtin , C. Cavata , S. Escoffier , B. Frois , D. Lhuillier , F. Marie , J. Martino , D. Neyret , T. Pussieux , P. Y. Bertin , C. W. de Jager , J. Mitchell

We propose a collective Thomson scattering experiment at the VUV free electron laser facility at DESY (FLASH) which aims to diagnose warm dense matter at near-solid density. The plasma region of interest marks the transition from an ideal…

Plasma Physics · Physics 2015-06-26 A. Hoell

The KArlsruhe TRItium Neutrino experiment KATRIN aims at improving the upper limit of the mass of the electron antineutrino to about 0.2 eV (90% c.l.) by investigating the beta-decay of tritium gas molecules. The experiment is currently…

Instrumentation and Detectors · Physics 2015-05-13 M. Ubieto-Diaz , D. Rodriguez , S. Lukic , Sz. Nagy , S. Stahl , K. Blaum

The long-term stability in terms of gain and energy resolution of a prototype triple Gas Electron Multiplier (GEM) detector has been investigated with high rate X-ray irradiation. Premixed Ar/CO2 (80:20) and (90:10) gases have been used for…

Instrumentation and Detectors · Physics 2021-07-05 S Chatterjee , S Roy , A Sen , S Chakraborty , S Das , S K Ghosh , S K Prasad , S Raha , S Biswas

We report high steady-state nuclear polarization of 1 torr $^3$He gas nuclei via metastability-exchange optical pumping at magnetic fields above 2 T. The introduction of highly polarized $^3$He gas into Brookhaven's Electron Beam Ion Source…

Instrumentation and Detectors · Physics 2019-04-15 J. D. Maxwell , J. Alessi , G. Atoian , E. Beebe , C. S. Epstein , R. G. Milner , M. Musgrave , A. Pikin , J. Ritter , A. Zelenski
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