First commissioning results from high resolution vacuum ultraviolet beamline at Indus-1 synchrotron source

Photoabsorption and photodissociation studies of dimethyl sulphoxide (DMSO) in the 35,000–80,000 cm−1 region using synchrotron radiation

“…Photoabsorption spectra are recorded using two VUV beamlines at Indus-1, i.e., the Photophysics [10] and High Resolution Vacuum Ultra-Violet (HRVUV) beamlines [11]. The Photophysics beamline is a medium resolution beamline built around a 1 m Seya-Namioka monochromator and delivers a monochromatic beam at the sample position.…”

“…For a central wavelength (λ 0 ) set by the grating, the spectrum is recorded in a 200 Å region (λ 0 7100 Å) by scanning PMT cum exit slit on the Rowland circle. Details of the beamline and also the wavelength scanning mechanism are reported in our earlier publication [11]. Wavelength calibration is done using xenon atomic absorption lines (in the region 462,500 cm À 1 ) or absorption bands of molecules like O 2 and SO 2 (in the region 48,000-62,500 cm À 1 ).…”

Ex-situ characterization of synchrotron radiation induced carbon contamination on LiF window

“…The LiF window used in the present study was exposed for 100 h in high resolution vacuum ultraviolet (HRVUV) beam line at Indus-1. Details of the HRVUV beam line are published elsewhere [18]. The photograph of the contaminated window with bright field image is shown in Fig.…”

Photostimulated phosphor based image plate detection system for HRVUV beamline at Indus-1 synchrotron radiation source

“…The dispersed radiation is detected by a sodium salicylate coated quartz window coupled with a visible PMT, which is scanned along the Rowland plane in steps of 10 μm size, with accuracy of ± 1 μm for recording the spectra [9] . The linear and rotational motion of the grating and the linear motion of PMT are controlled by a 3-axis stepper motor controller and driver system.…”

“…The linear and rotational motion of the grating and the linear motion of PMT are controlled by a 3-axis stepper motor controller and driver system. The motor control and data acquisition system are interfaced to a PC using a VISUAL BASIC software [9]. Using this beamline, photoabsorption studies of some stable molecules have been successfully carried out [12].…”