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Longitudinal profile monitor using smith-purcell radiation: Recent results from the E-203 Collaboration

IBIC 2013: Proceedings of the 2nd International Beam Instrumentation Conference (2013) 464-466

Authors:

N Delerue, J Barros, S Le Corre, M Vieille Grosjean, F Bakkali Taheri, R Bartolini, G Doucas, IV Konoplev, C Perry, A Reichold, S Stevenson, N Fuster Martinez, H Andrews, V Bharadwaj, C Clarke, M Labat

Abstract:

We report on recent measurements made at FACET by the E-203 collaboration to test a longitudinal bunch profile monitor based on Coherent Smith-Purcell radiation. The capacity of this monitor to resolve sub-picosecond bunches will be shown as well as a comparison of profile reconstructed for different data sets. We also present recent electromagnetic simulations of the interactions between the beam and the grating as well as the expected resolution of such monitor with a "notch collimator".

Presentation of the smith-purcell experiment at SOLEIL

IBIC 2013: Proceedings of the 2nd International Beam Instrumentation Conference (2013) 460-463

Authors:

N Delerue, J Barros, S Jenzer, M Vieille Grosjean, A Faus-Golfe, N Fuster Martinez, J Resta-López, G Doucas, I Konoplev, A Reichold, M Labat, L Cassinari

Abstract:

The potential of Coherent Smith-Purcell radiation as a longitudinal bunch profile monitor has already been demonstrated and has recently been extended to the sub-picosecond range. As a critical step toward the construction of a single shot bunch profile monitor using Coherent Smith-Purcell radiation it is important to measure very accurately the distribution of such radiation. Optimum background suppression techniques need to be found and relatively cheap detectors suitable for the far infra-red need to be qualified. To perform these tasks a test stand has been installed at the end of the linac of the synchrotron SOLEIL. This test stand and the first results from its commissioning will be presented here.

Some properties of coherent smith-purcell radiation from electron bunches and gratings of finite dimensions

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz (2013)

Authors:

IV Konoplev, FB Taheri, G Doucas, A Reichold, R Bartolini, N Delerue, C Clarke, V Bharadwaj

Abstract:

There is a strong interest in the development of single shot diagnostics of fs relativistic electron bunches within a number of research areas including compact particle accelerators and THz and X-ray sources of radiation. The goal of this work is to investigate some properties of coherent Smith-Purcell radiation and to use it for the reconstruction of the longitudinal profile of a fs-long electron bunch. © 2013 IEEE.
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Multicenter retrospective comparative study of laparoscopically assisted and conventional anorectoplasty for male infants with rectoprostatic urethral fistula

Journal of Pediatric Surgery Elsevier 48:12 (2013) 2383-2388
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Dynamics of isolated-photon plus jet production in pp collisions at s=7 TeV with the ATLAS detector

Nuclear Physics B 875:3 (2013) 483-535

Authors:

G Aad, T Abajyan, B Abbott, J Abdallah, S Abdel Khalek, AA Abdelalim, O Abdinov, R Aben, B Abi, M Abolins, OS AbouZeid, H Abramowicz, H Abreu, Y Abulaiti, Y Abulaiti, BS Acharya, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, S Adomeit, T Adye, S Aefsky, T Agatonovic-Jovin, JA Aguilar-Saavedra, M Agustoni, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, G Aielli, TPA Åkesson, G Akimoto, AV Akimov, MA Alam, J Albert, S Albrand, MJ Alconada Verzini, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Alhroob, M Aliev, G Alimonti, J Alison, BMM Allbrooke, LJ Allison, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, A Aloisio, R Alon, A Alonso, F Alonso, A Altheimer, B Alvarez Gonzalez, MG Alviggi, MG Alviggi, K Amako, Y Amaral Coutinho, C Amelung, VV Ammosov, SP Amor Dos Santos, A Amorim, S Amoroso, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, A Andreazza, V Andrei, XS Anduaga, S Angelidakis, P Anger, A Angerami, F Anghinolfi, AV Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, M Aoki, L Aperio Bella, R Apolle

Abstract:

The dynamics of isolated-photon plus jet production in pp collisions at a centre-of-mass energy of 7 TeV has been studied with the ATLAS detector at the LHC using an integrated luminosity of 37 pb-1. Measurements of isolated-photon plus jet bin-averaged cross sections are presented as functions of photon transverse energy, jet transverse momentum and jet rapidity. In addition, the bin-averaged cross sections as functions of the difference between the azimuthal angles of the photon and the jet, the photon-jet invariant mass and the scattering angle in the photon-jet centre-of-mass frame have been measured. Next-to-leading-order QCD calculations are compared to the measurements and provide a good description of the data, except for the case of the azimuthal opening angle. © 2013 CERN.
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