New developments in X-ray storage phosphors

On some fundamental features of optically stimulated luminescence measurements

“…The luminescence intensity is proportional to the number of trapped electrons and this, in turn, depends on the dose of radiation used for transferring the carriers into trap levels. This relation between radiation dose absorbed by a phosphor and the OSL intensity is extensively used for dosimetry (McKeever et al, 2004;Gaza et al, 2005) or radiological imaging (Nanto et al, 2002;Schweizer et al, 2004;Selling et al, 2005). In the basic measurement of OSL, optical stimulation is carried out with light of constant wavelength and constant intensity (CW-OSL).…”

Opportunities for Fluorochlorozirconate and Other Glass-Ceramic Detectors in Medical Imaging Devices

“…The electron hole pairs recombine and emit light when stimulated by a suitable source, such as a laser. The starting point of these detectors is a ZBLAN-based glass matrix with barium chloride partially or fully substituted for the usual barium fluoride [1]. One advantage of this material lies in the amazing versatility of glass synthesis.…”

Optical Storage Phosphors and Materials for Ionizing Radiation

“…For safety and quality assurance, reliable radiation monitoring systems (dosimetry) are mandatory for these applications (Mijnheer, 2008). Dosimetry systems that are currently used for evaluating dose and its distribution include (Dyk, 1999;Mijnheer, 2008;Podgorsak, 2005;Schweizer et al, 2004): 1. Ionization chambers and electrometers for the determination of radiation dose.…”