Thermoluminescence and thermally stimulated exoelectron emission of sintered CaB4O7 doped with Pb, Eu, or Dy

Undoped and calcium doped borate glass system for thermoluminescent dosimeter

“…This good stability is an important point to be considered in the development of a TL dosimeter, once the presence of water causes an adverse effect on the TL efficiency of the material, associated with non-radiative relaxations during thermal stimulation [12]. [6,10,11] have studied the thermoluminescence of CaB 4 O 7 at great length. Recently, Sangeeta and Sabharwal [8] showed that the polycrystalline CaB 2 O 4 presents a TL intensity 50 times higher than barium metaborate BaB 2 O 4 [8,9].…”

“…Many authors have studied glass and polycrystalline ceramics of alkaline and alkaline earth borate compounds using the thermoluminescence (TL) technique [1][2][3][4][5][6][7][8][9][10][11]. These compounds usually have higher sensitivities when compared to LiF:Mg,Ti (TLD-100) material [1].…”

“…Calcium tetraborate CaB 4 O 7 , glasses, and calcium metaborate CaB 2 O 4 , polycrystalline ceramics, are some of the most attractive systems among the borate compounds as they present a good chemical stability due to their very low hygroscopic nature [1,[8][9][10][11]. This good stability is an important point to be considered in the development of a TL dosimeter, once the presence of water causes an adverse effect on the TL efficiency of the material, associated with non-radiative relaxations during thermal stimulation [12].…”

Thermally stimulated luminescence glow curve structure of β‐irradiated CaB4O7:Dy

“…There are a few studies regarding the dosimetric characteristics of CaB 4 O 7 :Dy as a TL phosphor (13)(14)(15). This phosphor is recommended as an alternative to LiF (TLD-100) for the dosimetry of ionizing radiation using TSL because of its linear dose response, negligible fading, high sensitivity and excellent reusability (14,15).…”

Thermoluminescent properties of Dy doped calcium borate based glass for dose measurement subjected to photon irradiation

“…It is noted that calcium borate glasses have good chemical stability that of an important consideration for developing alternative forms of dosimeter [1,[5][6][7][8]. As reported elsewhere, the luminescence spectra and the glow peak in TLDs arise mainly from the signal in the doped core [21].…”