R. Kato et al., Basic study of self-amplified spontaneous emission in the infrared region with the L-band linac at Osaka University, NUCL INST A, 445(1-3), 2000, pp. 164-168
We are conducting experiments of self-amplified spontaneous emission (SASE)
in the far-infrared region at ISIR, Osaka University by using a high brigh
tness single-bunch beam from the L-band linac. As the first step, character
istics of the SASE-FEL are estimated using the one-dimensional analytic for
mulas and the measured characteristics of the electron beam. The calculated
FEL parameter is 0.02 and the gain length is 0.14 m at an electron energy
of 13 MeV and K = 1.472. Recently, we observed a strong optical signal radi
ated from a single-bunch beam passing through the wiggler for the existing
infrared FEL system. (C) 2000 Elsevier Science B.V. All rights reserved.