IBIC2012 - List of Authors (Deng, H.X.)

Paper	Title	Page
MOPB65	Measurement of Sub-picosecond Bunch Length with the Interferometry from Double Diffraction Radiation Target	218
	G.A. Naumenko, A. Potylitsyn, M.V. Shevelev, D.A. Shkitov TPU, Tomsk, Russia H.X. Deng, S.L. Lu, T. Yu, J.B. Zhang SINAP, Shanghai, People's Republic of China
	Funding: This work was supported by the joint Russian-Chinese grant (RFBR N 110291177 and NSFC N 11111120065) and partially by the Program of Russian MES 'Nauka' and Chinese NSFC grant N 11175240. Reliable and precise methods for non-invasive diagnostics of sub-picosecond electron bunches are required for new accelerator facilities (FEL, LWFA, et al.). Measurements of spectral characteristics of coherent radiation generated by such bunches using interferometer allow to determine a bunch length [1]. The interference pattern obtained by two diffraction radiation (DR) beams from two shifted plates (double DR target) may be used instead an interferometer [2]. Recently the coherent DR interferometry scheme at the SINAP accelerator facility was established [3]. Here we report the results of comparing the first measurement from such a technique with the measurement from Michelson interferometer. The parameters of fs linac are described in [4]. The DR target was consisted of two plates made from aluminum foil. The pyroelectric detector SPI-D-62 was used. The analysis of results from two techniques gives the same estimated bunch length about 660 fs (0.2 mm), which confirms the ability of the proposed technique for non-invasive bunch length measurements in the sub-picosecond range without a complicated scheme like Michelson interferometer or similar. 1. Murokh A.et al.,NIMA 410(1998)452 2. Potylitsyn A.P.,NIMB 227(2005)191 3. Shevelev M. et al.,Journal of Physics: Conference Series 357(2012) 4. Lin X.et al., Chin. Phys. Lett.27,4(2010)044101

Paper

Title

Page

Measurement of Sub-picosecond Bunch Length with the Interferometry from Double Diffraction Radiation Target

218

G.A. Naumenko, A. Potylitsyn, M.V. Shevelev, D.A. Shkitov
TPU, Tomsk, Russia
H.X. Deng, S.L. Lu, T. Yu, J.B. Zhang
SINAP, Shanghai, People's Republic of China

Funding: This work was supported by the joint Russian-Chinese grant (RFBR N 110291177 and NSFC N 11111120065) and partially by the Program of Russian MES 'Nauka' and Chinese NSFC grant N 11175240.
Reliable and precise methods for non-invasive diagnostics of sub-picosecond electron bunches are required for new accelerator facilities (FEL, LWFA, et al.). Measurements of spectral characteristics of coherent radiation generated by such bunches using interferometer allow to determine a bunch length [1]. The interference pattern obtained by two diffraction radiation (DR) beams from two shifted plates (double DR target) may be used instead an interferometer [2]. Recently the coherent DR interferometry scheme at the SINAP accelerator facility was established [3]. Here we report the results of comparing the first measurement from such a technique with the measurement from Michelson interferometer. The parameters of fs linac are described in [4]. The DR target was consisted of two plates made from aluminum foil. The pyroelectric detector SPI-D-62 was used. The analysis of results from two techniques gives the same estimated bunch length about 660 fs (0.2 mm), which confirms the ability of the proposed technique for non-invasive bunch length measurements in the sub-picosecond range without a complicated scheme like Michelson interferometer or similar.
1. Murokh A.et al.,NIMA 410(1998)452
2. Potylitsyn A.P.,NIMB 227(2005)191
3. Shevelev M. et al.,Journal of Physics: Conference Series 357(2012)
4. Lin X.et al., Chin. Phys. Lett.27,4(2010)044101