| Paper |
Title |
Page |
| TUPCH042 |
The Optical System for a Smith-Purcell Experiment at 45MeV
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1097 |
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- V. Blackmore, W.W.M. Allison, G. Doucas, C. Perry
OXFORDphysics, Oxford, Oxon
- P.G. Huggard
CCLRC/RAL, Chilton, Didcot, Oxon
- M.B. Johnston
University of Oxford, Clarendon Laboratory, Oxford
- B. Redlich, A.F.G. van der Meer
FOM Rijnhuizen, Nieuwegein
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Smith-Purcell (SP) radiation has been used to investigate the longitudinal profile of a 45MeV, picosecond long bunched beam at the FELIX facility, FOM Institute. The three important optical elements that made this experiment possible were (i) high quality optical filters, (ii) nonimaging light concentrators, (iii) and a system to rapidly change between gratings.
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| TUPCH043 |
Observations of the Longitudinal Electron Bunch Profile at 45MeV Using coherent Smith-Purcell radiation
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1100 |
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- G. Doucas, V. Blackmore, B. Ottewell, C. Perry
OXFORDphysics, Oxford, Oxon
- P.G. Huggard
CCLRC/RAL, Chilton, Didcot, Oxon
- M.B. Johnston
University of Oxford, Clarendon Laboratory, Oxford
- M.F. Kimmitt
University of Essex, Physics Centre, Colchester
- B. Redlich, A.F.G. van der Meer
FOM Rijnhuizen, Nieuwegein
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Coherent Smith-Purcell (SP) radiation has been used to determine the longitudinal profile of the electron bunch at the FELIX facility, FOM Institute. Far-infrared radiation was detected using a simple, compact arrangement of 11 pyroelectric detectors. Background radiation was suppressed through the use of high quality optical filters, and an efficient light collection system. The measured bunch profile was most closely in agreement with 90% of the particles contained within 5.5ps, with an approximately triangular temporal profile.
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