The high-efficiency spectroscopy setup at

EXILL—a high-efficiency, high-resolution setup for γ-spectroscopy at an intense cold neutron beam facility

Simplified setup for high-resolution spectroscopy that uses ultrashort pulses.

Using a broadband femtosecond laser and a simple optical setup, we demonstrate narrow-bandwidth-tunable excitation of vibrational modes in CCl4 and CHBr3 liquids. The resolution obtained is 80 times higher than the laser bandwidth. A pair of time-shifted, linearly chirped pulses is created by use of a high-order dispersion-compensated prism-interferometer setup. We use this pulse pair to select...

High resolution MR imaging and spectroscopy of the human breast at 7T using a focused field RF coil setup

Introduction Contrast enhanced breast MRI has clinical relevance in cancer diagnoses and treatment monitoring, however at a limited specificity. Functional MRI techniques, like diffusion MRI and MR spectroscopy will contribute to improved specificity but compromised in sensitivity due to low spatial resolution. At 1.5T or 3T the improve of spatial is hindered by low signal to noise ratios even ...

Measurements of atmospheric 7Be properties using high-efficiency gamma spectroscopy.

Two 7Be-related properties have been measured using a high-efficiency germanium gamma spectrometer (relative efficiency of 90%), namely, the activity median aerodynamic diameter (AMAD) of 7Be-associated atmospheric aerosols and the airborne 7Be radioactivity. With time resolutions of about 1-3d correlations between these 7Be-related properties and different meteorological parameters were identi...

Raman Spectroscopy Setup and Experiments for the Advanced Undergraduate Lab

Raman Spectroscopy is an important characterization technique in analytical chemistry and in solid state physics. This contribution describes the redesign of a Raman experiment for the Advanced Physics Lab and shows experimental results acquired with this new setup. Solid and liquid samples are irradiated by a frequency doubled Nd:YAG laser in backscattering geometry. The emission is focused on...