| dc.creator | VALENCA, JOAO V.B. | |
| dc.creator | SILVA, ANIELLE C.A. | |
| dc.creator | DANTAS, NOELIO O. | |
| dc.creator | CALDAS, LINDA V.E. | |
| dc.creator | DERRICO, FRANCESCO | |
| dc.creator | SOUZA, SUSANA O. | |
| dc.creator | INTERNATIONAL CONFERENCE ON LUMINESCENCE, 18th | |
| dc.date | 2018-03-09T13:22:46Z | |
| dc.date | 2018-03-09T13:22:46Z | |
| dc.date | August 27 - September 01, 2017 | |
| dc.date.accessioned | 2023-09-28T14:06:45Z | |
| dc.date.available | 2023-09-28T14:06:45Z | |
| dc.identifier | http://repositorio.ipen.br/handle/123456789/28682 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8998930 | |
| dc.description | The main goal of this work was to analyze the optically stimulated luminescence
(OSL) signal for a borate glass containing lithium and potassium oxides as glass modifiers.
This type of glass presents desirable characteristics for dosimetry and has been intensively
analyzed for TL [1]. Five glass formulations were produced [20Li2O ??? XK2O ??? (80-X)B2O3;
X=10, 15, 20, 25, and 30 mol%] and analyzed regarding their OSL signal when exposed to a
beta emitter source. If the total area below the curve was considered (Fig.1a), the composition named as
L10KB presented the most intense signal. However, if the initial OSL intensity was chosen
(Fig.1b), L15KB was the most sensitive. A comparison of the OSL decay for the two quoted
compositions, after the application of a pre-heating process of 200 oC/10 s, showed a slightly
change in the decay pattern comparing to the case without pre-heating. Pre-heating treatments
also showed the relation between the shallow traps and the fast component of the OSL decay
for L15KB, which was already noted for phosphate glasses [2]. For all compositions, an
increase in the dose implied in an increase of the emitted signal, and no signal of saturation
was verified for the tested dose range (0.1 Gy to 7 Gy). | |
| dc.format | 240-240 | |
| dc.rights | openAccess | |
| dc.subject | luminescence | |
| dc.subject | luminescent dosemeters | |
| dc.subject | borates | |
| dc.subject | boron oxides | |
| dc.subject | thermoluminescence | |
| dc.subject | x-ray diffraction | |
| dc.subject | differential thermal analysis | |
| dc.subject | lithium carbonates | |
| dc.subject | potassium carbonates | |
| dc.title | Optically stimulated luminescence of the 20Li2O??? (X)K2O ??? (80 - X)B2O3 glass system | |
| dc.type | Resumo de eventos cient??ficos | |
| dc.coverage | I | |
