PMID- 15147684
OWN - NLM
STAT- MEDLINE
DCOM- 20041229
LR  - 20130124
IS  - 1386-1425 (Print)
IS  - 1386-1425 (Linking)
VI  - 60
IP  - 7
DP  - 2004 Jun
TI  - Luminescence emission spectra in the temperature range of the structural phase 
      transitions of Na2SO4.
PG  - 1431-8
AB  - The spectral properties of Na2SO4 have been studied by means of infrared 
      stimulated luminescence (IRSL), thermoluminescence (TL) and radioluminescence 
      (RL) in the range of 200-800 nm. The observed changes in the RL emission spectra 
      after an annealing treatment (400 degrees C for 1 h) could be linked to thermal 
      phase transformations and alkali self-diffusion through the lattice of this salt. 
      Despite the complexity of the luminescence spectra structure, five emission bands 
      peaked at 330, 345, 385, 460 and 630 nm could be distinguished. The UV-blue TL 
      emission of this material exhibits a maximum peaked at 230 degrees C which is 
      well correlated with the differential thermal analysis (DTA) and can be 
      associated with the thermal transformation of the orthorhombic sodium sulphate 
      (Na2SO4) V (thenardite) phase into Na2SO4 III, II and I phases. Taking into 
      account the observed changes on the structural phase transition by X-ray 
      diffraction (XRD) from 16 degrees C onwards, this material does not show 
      satisfactory features for radiation dosimetry, but could be employed for 
      temperature calibration of TL readers.
FAU - Correcher, V
AU  - Correcher V
AD  - CIEMAT, Av. Complutense 22, Madrid 28040, Spain. v.correcher@ciemat.es
FAU - Garcia-Guinea, J
AU  - Garcia-Guinea J
FAU - Lopez-Arce, P
AU  - Lopez-Arce P
FAU - Gomez-Ros, J M
AU  - Gomez-Ros JM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Spectrochim Acta A Mol Biomol Spectrosc
JT  - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
JID - 9602533
RN  - 0 (Sulfates)
RN  - 0YPR65R21J (sodium sulfate)
SB  - IM
MH  - Crystallization
MH  - Crystallography, X-Ray
MH  - Luminescence
MH  - Microscopy, Electron, Scanning
MH  - Spectrophotometry
MH  - Sulfates/*chemistry/radiation effects
MH  - Temperature
MH  - Thermodynamics
EDAT- 2004/05/19 05:00
MHDA- 2004/12/30 09:00
CRDT- 2004/05/19 05:00
PHST- 2003/07/15 00:00 [received]
PHST- 2003/08/18 00:00 [revised]
PHST- 2003/08/19 00:00 [accepted]
PHST- 2004/05/19 05:00 [pubmed]
PHST- 2004/12/30 09:00 [medline]
PHST- 2004/05/19 05:00 [entrez]
AID - S138614250300386X [pii]
AID - 10.1016/j.saa.2003.08.008 [doi]
PST - ppublish
SO  - Spectrochim Acta A Mol Biomol Spectrosc. 2004 Jun;60(7):1431-8. doi: 
      10.1016/j.saa.2003.08.008.