Open AccessThe Mobile Luminescence End‐Station, MoLES: a new public facility at Daresbury Synchrotron
Author(s) -
Quinn Frances,
Poolton Nigel,
Malins Andrew,
Pantos Emmanuel,
Andersen Claus,
Denby Phil,
Dhanak Vin,
Miller George
Publication year - 2003
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049503019137
Subject(s) - synchrotron radiation , synchrotron , materials science , excitation , photoluminescence , optics , analytical chemistry (journal) , optoelectronics , physics , chemistry , chromatography , quantum mechanics
A new mobile end‐station is described for use on multiple beamlines at the Daresbury synchrotron radiation source (overall excitation range 5 eV to 70 keV) that allows for the detection and dispersion of photoluminescence from solid‐state samples in the emission range 190–1000 nm (1.2–6.5 eV). The system is fully self‐contained and includes sample‐cooling facilities for the temperature range 8–330 K using a closed‐cycle refrigerator, thus eliminating the need for liquid cryogens. The system also includes solid‐state laser sources for use with a variety of pump–probe‐type experiments, and an Ar + surface‐cleaning facility. In order to demonstrate the various capabilities of the system, the results of a variety of experiments are summarized, carried out over the excitation range 5–5000 eV on beamlines 3.2, MPW6.1 and 4.2. These include the optical detection of XAS of L ‐edge structure in natural minerals and archaeological ceramics, band‐gap determinations of wide‐band‐gap silicates, and pump–probe studies of quartz.