Future aspects of X-ray emission from crystal undulators at channeling of positrons

IL NUOVO CIMENTO – DOI 10.1393/ncc/i2011-10983-9

H. Backe(1)(∗), D. Krambrich(1), W. Lauth(1), B. Buonomo(2), S. B. Dabagov(2)(3), G. Mazzitelli(2), L. Quintieri(2), J. Lundsgaard Hansen(4), U. I. Uggerhøj(4), B. Azadegan(5), A. Dizdar(6) and W. Wagner(7)
(1) Institute of Nuclear Physics, J. Gutenberg-University Mainz – D-55099 Mainz, Germany (2) INFN – Laboratori Nazionali di Frascati – Via E. Fermi 40, F000U Frascati (RM), Italy (3) RAS – P.N. Lebedev Physical Institute – 119991 Moscow, Russia (4) Department of Physics and Astronomy, University of Aarhus

DK-8000 Aarhus C, Denmark (5) Sabzevar Tarbiat Moallem University – Sabzevar, Iran (6) Department of Physics, Istanbul University – Istanbul, Turkey (7) Helmholtz-Zentrum Dresden-Rossendorf – Postfach 51 01 19, D-01314 Dresden, Germany
(ricevuto il 22 Dicembre 2010; pubblicato online il 22 Settembre 2011)

Summary. — In connection with ideas to produce undulator-like radiation in the hundreds of keV up to the MeV region by means of positron and electron channeling, there is renewed interest to study various channeling phenomena also experimentally. With electrons experiments have been performed at the Mainz Microtron MAMI to explore channeling-radiation emission by a 4-period epitaxially grown strained layer Si1−xGex undulator with a period length of λu = 9.9μm. Unfortunately, high-quality positron beams of sufficient intensity are not easily accessible. The only serious candidate in Europe seems to be the Beam Test Facility (BTF) at INFN/LNF, Frascati, Italy. Some requirements to extent BTF in a facility which is also well suited for positron channeling-radiation experiments will be outlined.
PACS 41.60.-m – Radiation by moving charges. PACS 61.85.+p – Channeling phenomena (blocking, energy loss, etc.). PACS 87.56.bd – Accelerators.

Informazioni su Giovanni Mazzitelli

Senior Researcher - field of interest high energy physics and particle accelerators; science communication and education; sail and alpinism lover
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