36 citations · 92 across the 6 of their papers we have counts for
6 papers
Performance measurement of HARPO: a Time Projection Chamber as a gamma-ray telescope and polarimeter
P. Gros, S. Amano, D. Attié +27
We analyse the performance of a gas time projection chamber (TPC) as a high-performance gamma-ray telescope and polarimeter in the ee pair creation regime. We use data coll…
First measurement of polarisation asymmetry of a gamma-ray beam between 1.74 to 74 MeV with the HARPO TPC
Philippe Gros, Sho Amano, David Attié +23
Current -ray telescopes suffer from a gap in sensitivity in the energy range between 100keV and 100MeV, and no polarisation measurement has ever been done on cosmic sources abov…
Measurement of 1.7 to 74 MeV polarised gamma rays with the HARPO TPC
Y. Geerebaert, Ph. Gros, S. Amano +23
Current γ-ray telescopes based on photon conversions to electron-positron pairs, such as Fermi, use tungsten converters. They suffer of limited angular resolution at low energies,…
New Optical Gating Technique for Detection of Electric Field Waveforms with Subpicosecond Resolution
A. Muraviev, A. Gutin, G. Rupper +5
We report on the new optical gating technique used for the direct photoconductive detection of short pulses of terahertz radiation with the resolution up to 250 femtoseconds. The f…
HARPO: beam characterization of a TPC for gamma-ray polarimetry and high angular-resolution astronomy in the MeV-GeV range
Shaobo Wang, Denis Bernard, Philippe Bruel +23
A time projection chamber (TPC) can be used to measure the polarization of gamma rays with excellent angular precision and sensitivity in the MeV-GeV energy range through the conve…
Water Vapor: An Extraordinary Terahertz Wave Source under Optical Excitation
Keith Johnson, Matthew Price-Gallagher, Orval Mamer +6
In modern terahertz (THz) sensing and imaging spectroscopy, water is considered a nemesis to be avoided due to strong absorption in the THz frequency range. Here we report the firs…