https://doi.org/10.1140/epjc/s10052-014-3114-x
Regular Article - Experimental Physics
Experimental evidence of planar channeling in a periodically bent crystal
1
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Via Saragat 1, 44122, Ferrara, Italy
2
Università dell’Insubria, Via Valleggio 11, 22100, Como, Italy
3
INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126, Milan, Italy
4
INFN Laboratori Nazionali di Legnaro, Viale dell’Università 2, 35020, Legnaro, Italy
5
Dipartimento di Fisica, Università di Padova, Via Marzolo 8, 35131, Padua, Italy
6
Department of Engineering, University of San Marino, Via Salita alla Rocca 44, 47890, San Marino, Republic of San Marino
7
Research Institute for Nuclear Problems, Belarusian State University, Bobruiskaya Street, 11, 220030, Minsk, Belarus
8
INFN Sezione di Trieste, Via Valerio 2, 34127, Trieste, Italy
* e-mail: guidi@fe.infn.it
Received:
20
August
2014
Accepted:
1
October
2014
Published online:
18
October
2014
The usage of a crystalline undulator (CU) has been identified as a promising solution for generating powerful and monochromatic 
-rays. A CU was fabricated at Sensors and Semiconductors Lab (SSL) through the grooving method, i.e., by the manufacturing of a series of periodical grooves on the major surfaces of a crystal. The CU was extensively characterized both morphologically via optical interferometry at SSL and structurally via X-ray diffraction at ESRF. Then, it was finally tested for channeling with a 400 GeV/c proton beam at CERN. The experimental results were compared to Monte Carlo simulations. Evidence of planar channeling in the CU was firmly observed. Finally, the emission spectrum of the positron beam interacting with the CU was simulated for possible usage in currently existing facilities.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
