Photoluminescence characterizations and nonlinear optical of PM-355 nuclear track detector film by alpha-particles and laser irradiation

Abstract

The imaging processing technique was used for studying a laser beam nature that transmitted through films of PM-355. The thermal nonlinearity of PM-355 films was studied using a 635 nm cw diode laser at 15 mW as the source of excitation. Third order nonlinear optical properties of PM-355 films irradiated with α-particles at different times and pristine sample has been studied using Z-scan technique. The samples showed a negative and large nonlinear refractive index and reverse saturable absorption (RSA) with high values of the nonlinear absorption coefficient. The fluorescence spectra of PM-355 films were investigated at room temperature and wavelength range of 250–500 nm for a pristine film and in different times of exposure to α-particles. The broad peaks were between 350, 420 and 465 nm. All-optical switching property of PM-355 samples irradiated with α-particles at 20 min was also studied using the standard pump-probe technique.

The effect of gamma-irradiation on absorption spectrum of fluorescein dye

“…Fig. 2 shows The absorption spectrum of the fluorescein dye with different concentration, irradiated with fixed dose of gamma radiation, one week (4.7 KGy) consists of a broad band in the visible , peaking near 487 nm, and anther band to 489nm this absorption peaks is assigned to π -π * transition [16,17]. The absorption intensity is strongly depended on concentration at 80 mM due to color change (see fig 3).…”

Environmental Radiation Dosimetry for school buildings, hospitals and health centers in Babil Governorate-Iraq using TL-technique

“…This is because thermoluminescence dosimeters are tiny and inexpensive, need little field effort, are measured in a laboratory setting, and have acceptable sensitivity, accuracy, and reliability under harsh environmental conditions. Because of their higher degree of accuracy sensitivity, (TLD-200) chips were used for this work (Al-Salihi, Abul-Hail, Badran, & Alfahed, 2022;Alfahed et al, 2020;Alhiall & Alsalihi, 2019;Hassan, Abul-Hail, Badran, & Al-Salihi, 2022). A factory-produced metering container containing 20 dosimeters per batch was used for the calibration and determination of the TL response per m rad (Kellerer, Hahn, & Rossi, 1992).…”

“…A factory-produced metering container containing 20 dosimeters per batch was used for the calibration and determination of the TL response per m rad (Kellerer, Hahn, & Rossi, 1992). A full batch of dosimeters was annealed for 1 h at 400 degrees Celsius, followed by 2 h at 100 0 C (Al-Salihi et al, 2021;Alfahed et al, 2019;Bdran et al, 2020;Bujdosó, 1987;Ramadhan, Al-Salihi, & Khalaf, 2020). This treatment also improves the dosimeter's sensitivity.…”

“…Environmental background radiation must be precisely assessed to identify exposures related to the emission of radioactivity from the nuclear site; the amount of environmental radiation must be evaluated to appropriately quantify population exposure. Many researchers have studied this subject to better understand the environmental radiation contamination in soil, water, air, salt, and food to safeguard the environment from the hazards of radiation exposure to people (Abualhail, Abbas, & Alsalihi, 2017;Alfahed, Imran, Majeed, & Badran, 2020;Alsalihi & Abualhiall, 2019;Bdran, Abul-Hail, & Obeed, 2020;Hail & Talib, 2020;Mollah, Husain, & Rahman, 1986;Rejah, Oraibi, & Al-Salihi, 2020;Salman, Al-Ahmad, Badran, & Emshary, 2015). The current study was conducted out in several areas of Babil Governorate, employing TL-dosimetry to conduct a radiation survey of 10 locations.…”

Thermoluminescence studies of Himalayan salt Materials

“…There are a few materials that are particularly noteworthy, such as ceramics [6], blocks made of concrete [7,8], materials for building that are cementations [9] materials that give nonlinear behaviour [10][11][12][13][14], shielding materials [15] and nuclear track detector [16,17]. These materials are found permanently in structures that are located in close proximity to radiation incidents.…”