Linearly polarized photon beam at MAX-lab

Ganenko, V. et al. (2014) Linearly polarized photon beam at MAX-lab. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 763, pp. 137-149. (doi: 10.1016/j.nima.2014.05.110)

Abstract

A linearly polarized photon beam has been produced at MAX-lab using the coherent bremsstrahlung of electrons with an energy of 192.6 MeV in a 0.1 mm thick diamond crystal. The intensity and shape of the coherent maxima and their dependence on the crystal orientation are similar to the features observed at higher electron energies (~ 1 GeV) and are well described by coherent bremsstrahlung theory. The linear polarization of the uncollimated beam at the coherent peak energy ≈50–60 MeV is about 20% and can be increased to 40–45% if collimation of half the characteristic angle is used. At present the degree of polarization is high enough to allow the study of polarization observables in photo-nuclear reactions at MAX-lab in the energy range from Giant Dipole Resonance up to ≈80 MeV.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Livingston, Dr Kenneth
• Authors: Ganenko, V., Brudvik, J., Burdeinyi, D., Fissum, K., Hansen, K., Isaksson, L., Livingston, K., Lundin, M., Morokhovskii, V., Nilsson, B., Pugachov, D., Schroder, B., and Vashchenko, G.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
• Publisher: Elsevier BV
• ISSN: 0168-9002
• ISSN (Online): 1872-9576