A low-cost microcontroller-based measurement system for a fractional glow technique

Abstract

A microcontroller-based research instrument for performing thermoluminescence (TL) and fractional glow technique (FGT) measurements in the range from room temperatures up to 500 °C has been developed. The key features of this system are the wide range of linear heating and cooling rates (0.005–20 °C s−1), precise temperature regulation, simplicity of construction and low cost. Details of the heater design, hardware, firmware and software are discussed along with sample results of FGT applied for the MCP-N (LiF:Mg,Cu,P) TL detector.

Influence of different annealing conditions on the luminescent properties of Li2B4O7:Mn single crystals

“…The TSL measurements were carried out using an automated setup based on a FEU-136 photomultiplier operating in the photon counting mode [12]. Prior to each measurement, the specimens were annealed at 675 K for 100 s ensuring complete erasing of the residual dosimetric information.…”

New structural–optical effect in LiF–Li2B4O7 thin‐film structures in the crystallization

“…The peculiarity of these experimental studies was the need to carry them out over a wide temperature range [from room temperature (RT) to ~500°C] and use susceptible light emission recording systems to obtain the required signal‐to‐noise ratio. An photomultiplier (FEP) in the photon counting mode [31] was used to get a better signal/noise ratio than the photocurrent ones in experiments to measure the intensity of the luminescence of thin‐film structures. The FEU‐136 type of FEP was selected with a spectral sensitivity range 300–830 nm, with a low dark current level (<50 s −1 at RT).…”

Dependence of luminescent properties Li₂B₄O₇:Cu and Li₂B₄O₇:Mn crystals on the type and condition of ionizing

“…Вимірювання термолюмінесценції проводилось на установці описаній в роботі [6]. Для вимірювання інтенсивності люмінесцентного свічення було використано фотоелектронний помножувач типу ФЕП-136 у режимі лічби фотонів.…”