Results 31 to 40 of about 866,581 (318)

Transition Radiation in Astrophysics

The Astrophysical Journal, 1973
Transition radiation produced by relativistic electrons traversing cosmic grains is investigated as a possible source of celestial X rays. The detailed theory of transition radiation including the formation-zone effect is used to calculate the X-ray emissivity in interstellar space.
Reuven Ramaty, X. Artru, G. B. Yodh
openaire   +2 more sources

Lilienfeld Transition Radiation Brought to Light

, 2003
Presently, the term transition radiation tends to denote a somewhat different physical phenomenon than the original transition radiation discovered by J. E. Lilienfeld in 1919, and re-employed in different forms again in 1953 and 1971.
Rabinowitz, Mario
core   +1 more source

Driving positron beam acceleration with coherent transition radiation [PDF]

, 2020
Positron acceleration in plasma wakefield faces significant challenges since the positron beam must be pre-generated and precisely coupled into the wakefield, and most critically, suffers from defocusing issues.
Ji, Liangliang, Li, Shun, Shen, Baifei, Xu, Jiancai, Xu, Tongjun, Xu, Zhangli, Xu, Zhizhan, Yi, Longqing, Zhang, Lingang   +8 more
core   +2 more sources

Beam Emittance and Bunch Length Diagnostics for the MIR-FEL Beamline at Chiang Mai University

Particles
The generation of high-quality mid-infrared free-electron laser (MIR-FEL) radiation depends critically on precise control of electron beam parameters, including energy, energy spread, transverse emittance, bunch charge, and bunch length.
Kittipong Techakaew, Kanlayaporn Kongmali, Siriwan Pakluea, Sakhorn Rimjaem   +3 more
doaj   +1 more source

Update on Radiation Dose From Galactic and Solar Protons at the Moon Using the LRO/CRaTER Microdosimeter [PDF]

, 2015
The NASA Lunar Reconnaissance Orbiter (LRO) has been exploring the lunar surface and radiation environment since June 2009. In Mazur et al. [2011] we discussed the first 6 months of mission data from a microdosimeter that is housed within the Cosmic Ray ...
Blake, J. B., Looper, M. D., Mazur, J. E., Schwadron, Nathan A., Spence, Harlan E., Townsend, Lawrence W., Zeitlin, Cary   +6 more
core   +2 more sources

Transition Radiation as a Probe of the Chiral Anomaly [PDF]

Physical Review Letters, 2018
A fast charged particle crossing the boundary between the chiral matter and vacuum radiates the transition radiation. Its most remarkable features --- the resonant behavior at a certain emission angle and the circular polarization of the spectrum --- depend on the parameters of the chiral anomaly in a particular material/matter.
Huang, Xu-Guang, Tuchin, Kirill
openaire   +5 more sources

Challenges in the transition to independent radiation oncology practice and targeted interventions for improvement

Technical Innovations & Patient Support in Radiation Oncology, 2022
Numerous radiation oncology residents and junior attendings have identified common weaknesses in residency training that hinder the transition from training to independent practice.
Alexandra N. De Leo, Nicolette Drescher, James E. Bates, Anamaria R. Yeung   +3 more
doaj   +1 more source

Spectral Characteristics of Polarization Radiation in the Water Window Range

Quantum Beam Science
The high-intensity and monochromatic radiation sources in the water window spectral range are desirable for many applications. One of the potential candidates of soft X-ray sources is polarization radiation produced by a charged particle passing through ...
M. V. Shevelev, A. S. Konkov, S. R. Uglov, B. A. Alekseev, Yu. M. Cherepennikov   +4 more
doaj   +1 more source

Observation of coherent transition radiation in the prewave zone

Physical Review Special Topics. Accelerators and Beams, 2012
Transition radiation generated from a relativistic electron beam is used as a tool for diagnostics of the beam. Also, it can be used as a source of femtosecond (fs) THz radiation.
Changmook Yim (임창묵), Junho Ko (고준호), Seonghoon Jung (정성훈), Daehoon Han (한대훈), Changbum Kim (김창범), Jaehun Park (박재헌), Heung-Sik Kang (강흥식), In Soo Ko (고인수)   +7 more
doaj   +1 more source

Test beam studies of the TRD prototype filled with different gas mixtures based on Xe, Kr, and Ar

, 2016
Towards the end of LHC Run1, gas leaks were observed in some parts of the Transition Radiation Tracker (TRT) of ATLAS. Due to these leaks, primary Xenon based gas mixture was replaced with Argon based mixture in various parts.
Boldyrev, A. S., Brooks, T., Celebi, E, Cetin, S. A., Derendarz, D., Fillipov, K. A., Gurbuz, S, Joos, M., Konovalov, S. P., Maevsky, A., Rembser, C., Romaniouk, A., Smirnov, S., Teterin, P. E., Tikhomirov, V. O., Vorobev, K. A., Zhukov, K.   +16 more
core   +1 more source