A laser-Compton scattering prototype experiment at 100 MeV linac of Shanghai Institute of Applied Physics.
As a prototype of the Shanghai Laser Electron Gamma Source in the Shanghai Synchrotron Radiation Facility, an x-ray source based on laser-Compton scattering (LCS) has been installed at the terminal of the 100 MeV linac of the Shanghai Institute of Applied Physics. LCS x-rays are generated by interactions between Q-switched Nd:yttrium aluminum garnet laser pulses [with wavelength of 1064 nm and pulse width of 21 ns (full width at half maximum)] and electron bunches [with energy of 108 MeV and pulse width of 0.95 ns (rms)] at an angle of 42 degrees between laser and electron beam. In order to measure the energy spectrum of LCS x-rays, a Si(Li) detector along the electron beam line axis is positioned at 9.8 m away from a LCS chamber. After background subtraction, the LCS x-ray spectrum with the peak energy of 29.1+/-4.4|(stat)+/-2.1|(syst) keV and the peak width (rms) of 7.8+/-2.8|(stat)+/-0.4|(syst) keV is observed. Normally the 100 MeV linac operates with the electron macropulse charge of 1.0 nC/pulse, and the electron and laser collision repetition rate of 20 Hz. Therefore, the total LCS x-ray flux of (5.2+/-2.0) x 10(2) Hz can be achieved.
Luo
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W
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.
Xu
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W
Pan
Q Y
QY
Cai
X Z
XZ
Chen
J G
JG
Chen
Y Z
YZ
Fan
G T
GT
Fan
G W
GW
Guo
W
W
Li
Y J
YJ
Liu
W H
WH
Lin
G Q
GQ
Ma
Y G
YG
Shen
W Q
WQ
Shi
X C
XC
Xu
B J
BJ
Xu
J Q
JQ
Xu
Y
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Zhang
H O
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Yan
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Yang
L F
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Zhao
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