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Figure 2
Schematic drawing of the optical arrangement of the TERAS BL-5B beamline and systems for measurements of (a) calibration factor G1f, (b) CD spectra of Ala/MgF2 sample, and (c) CD spectra of Ala/SS sample. 4S1–4S3: four-blade slits; S1 and S2: entrance and exit slits; I0M: SS-coated chopper wheel which is used for monitoring the incident light intensity; PM1 and PM2: photomultipliers; HV1 and HV2: power supplies; LPF: electrical low-pass filter; V1 and V2: digital voltmeters; and LIA: dual-phase lock-in amplifier.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 16| Part 4| May 2009| Pages 455-462
doi:10.1107/S0909049509012291
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