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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Beta ray induced optically stimulated luminescence properties of calcium oxide phosphor

Author(s):
Nagabhushana, K. R. [1, 2] ; Prakash, D. [1, 3] ; Tatumi, Sonia H. [2] ; Rocca, Rene R. [2] ; Watanabe, S. [4]
Total Authors: 5
Affiliation:
[1] PES Inst Technol, Phys R&D Ctr, BSK 3rd Stage, Bangalore 560085, Karnataka - India
[2] Univ Fed Sao Paulo, Inst Marine Sci, BR-11030400 Santos, SP - Brazil
[3] Govt Sci Coll, Dept Phys, Bengaluru 560001, Karnataka - India
[4] Univ Sao Paulo, Inst Phys, BR-05508900 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: INDIAN JOURNAL OF PURE & APPLIED PHYSICS; v. 56, n. 8, SI, p. 635-638, AUG 2018.
Web of Science Citations: 0
Abstract

This work presents the results on optically stimulated luminescence of calcium oxide (CaO). Polycrystalline CaO phosphors are irradiated with beta rays in the dose range 10 - 100 Gy. The optically stimulated luminescence (OSL) from CaO sample is strong, the decay is fast and entire signal decays within 50 s. OSL intensity increases linearly with beta dose. The life time and photo ionization cross section (PICS) of decay are in the range similar to 0.045, 1.5 and 41.391 s and 1.32x10(-16), 3.32x10(-18) and 1.42x10(-19) cm(2) for fast, medium and slow components, respectively. Further, the life time and PICS of fast, medium and slow LM-OSL components have been found to be 2.29, 6.0, 17.0 s and 2.56x10(-18), 9.77x10(-19), 3.45x10(-19) cm(2), respectively. Both the OSL curves exhibits general order kinetics. (AU)

FAPESP's process: 16/02262-0 - TL and OSL dating and dosimetry applied to geological sites
Grantee:Sonia Hatsue Tatumi
Support type: Research Grants - Visiting Researcher Grant - International