Absorption Spectrum and Quantum States of the Praseodymium Ion. I. Single Crystals of Praseodymium Chloride

1955 ◽  
Vol 23 (11) ◽  
pp. 2060-2065 ◽  
Author(s):  
Edward V. Sayre ◽  
Kenneth M. Sancier ◽  
Simon Freed
Keyword(s):  
Absorption Spectrum ◽  
Single Crystals ◽  
Quantum States ◽  
Praseodymium Chloride

Thermoluminescence of irradiated ammonium perchlorate crystals

1976 ◽  
Vol 54 (7) ◽  
pp. 766-770 ◽  
Author(s):  
S. Radhakrishna ◽  
M. Riggin ◽  
P. W. Whippey ◽  
P. W. M. Jacobs
Keyword(s):  
Absorption Spectrum ◽  
Single Crystals ◽  
Heating Rate ◽  
Ammonium Perchlorate ◽  
Uv Light ◽  
High Energy ◽  
X Rays ◽  
Spectroscopic Evidence ◽  
Additional Peak ◽  
High Energy Electrons

The thermoluminescence of single crystals of ammonium perchlorate irradiated with X rays, uv light, or high energy electrons has been measured between 80 and 420 K. With a heating rate of 5 K/min. prominent peaks occur at 95, 113, 134, 246, and 320 K; an additional peak is found at 347 K after longer irradiation times. The absorption spectrum of uv-irradiated ammonium perchlorate has also been measured and shows bands at 300, 360, and 610 nm. A comparison of these data with chemical and spectroscopic evidence obtained by other workers has permitted the probable identification of ClO3−, ClO−, ClO2, and F centres as radiation products. Three thermoluminescent peaks remain unassigned.

Absorption Spectrum of VO2+ in Cadmium Maleate Dihydrate Single Crystals

1991 ◽  
Vol 26 (8) ◽  
pp. K185-K188
Author(s):  
K. Ravindra Babi ◽  
M. V. Ramana
Keyword(s):  
Absorption Spectrum ◽  
Single Crystals
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