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Absolute response of Fuji imaging plate detectors to picosecond-electron bunches

Source: Rev. Sci. Instrum. 81, 013307 (2010); doi:10.1063/1.3284524

Published 26 January 2010

KEYWORDS and PACS
Keywords
PACS
  • 41.75.Jv
    Laser-driven acceleration of charged-particle beams
  • 52.25.Tx
    Emission, absorption, and scattering of particles in plasma
  • 29.20.Ej
    Linear accelerators
  • 52.38.Kd
    Laser-plasma acceleration of electrons and ions
  • 41.75.Fr
    Electron and positron beams
  • YEAR: 2010
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PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef AIP
K. Zeil,1 S. D. Kraft,1 A. Jochmann,1 F. Kroll,1 W. Jahr,1 U. Schramm,1 L. Karsch,2 J. Pawelke,2 B. Hidding,3 and G. Pretzler3
1Forschungszentrum Dresden-Rossendorf (FZD), Dresden 01314, Germany
2TU Dresden, OncoRay-Radiation Research in Oncology, Dresden 01307, Germany
3Heinrich-Heine Universität Düsseldorf, Düsseldorf 40225, Germany
The characterization of the absolute number of electrons generated by laser wakefield acceleration often relies on absolutely calibrated FUJI imaging plates (IP), although their validity in the regime of extreme peak currents is untested. Here, we present an extensive study on the dependence of the sensitivity of BAS-SR and BAS-MS IP to picosecond electron bunches of varying charge of up to 60 pC, performed at the electron accelerator ELBE, making use of about three orders of magnitude of higher peak intensity than in prior studies. We demonstrate that the response of the IPs shows no saturation effect and that the BAS-SR IP sensitivity of 0.0081 photostimulated luminescence per electron number confirms surprisingly well data from previous works. However, the use of the identical readout system and handling procedures turned out to be crucial and, if unnoticed, may be an important error source. ©2010 American Institute of Physics
History: Received 2 October 2009; accepted 14 December 2009; published 26 January 2010
Permalink: http://link.aip.org/link/?RSINAK/81/013307/1

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