New Approach to Make Cylindrical Packaging Products in Rotation Around Their Fixed Axis During Irradiation in the Monte Carlo Simulation

Gamma-irradiation effect on the chemical composition and antibacterial activity of the moroccan tanacetum annuum L. essential oil

“…Because such systems allow for very reproducible and stable measurements [ 21 ], the uncertainties in the experimental dose were rather low and amounted to 3.5% [ 22 ]. Alanine is an amino acid, and alanine dosimeters are in the granules form with a nominal diameter of 5.0 mm and a thickness of about 2.3 mm, their irradiation produces free radicals, the concentration of these is proportional to the absorbed dose, and measured by instrumentation is called electron paramagnetic resonance spectrometer (EPR) [ 23 ]. Immediately after irradiation, the EOs were extracted and stored at (−18 °C) for later use.…”

Use of gamma irradiation for decorative coloring of glass in the Moroccan NIAR facility

“…Table 1 gives the activity of 8 source pencils according to the calibration date. [2,5] As shown in figure 2, the NIAR ionization cell is of parallelepipedal shape 257cm high, 605 cm along X, 570 cm along Y, the gamma irradiator is surrounded by a set of rotating tables on which the products to be irradiated are posed, 9 tables have been installed to meet the irradiation needs in terms of quantity and irradiation time, in fact the T1 to T6 tables are used for irradiating large quantities at medium dose rate, the T7 tables and T8 are used for high and medium dose rate irradiation of agricultural or non-agricultural products such as pharmaceuticals or glass (subject of this work), the last turntable which is the T9 table is used for low doses. [1,3,4] In order to protect the NIAR population (especially the irradiator operators) and the environment, the source cage is stored during the hours of non-activity in a lead container, the walls of the casemate are made of reinforced concrete of 163cm thick , the casemate door is armed, and the labyrinth is to eliminate radiation leakage through the door during irradiation.…”

“…Morocco is among the most usable African countries for ionizing radiation in several activities, for example in medicine, ionizing radiation (x and gamma) is used in radiology and in radiotherapy to diagnose and treat cancer(gammaknife technique for example), also in nuclear medicine radioactive elements are injected into the human body (radiopharmaceuticals) for treatment and diagnosis (thyroid cancer with radioactive iod-123). [2][3][4][5][6] In addition to medicine, ionizing radiation is used in the industrial field in several applications such as electron beam welding or Checking the homogeneity of a metal generally using Iridium 192 (gamma radiography). The applications of ionizing radiation extend to a very important and sensitive area for the Moroccan economy which is agriculture, for this a gamma irradiator has been installed since 1995 at the National Institute of Agronomic Research (NIAR) in the city of Tangier, is considered unique in Morocco, since its installation there was several researches in this field, for the preservation of food, inhibition of germination, production of new varieties etc, indeed several products have been irradiated like sensitive oils, dried figs, strawberries, oranges, and all with the aim of progressing and developing Moroccan agriculture and increasing production yield.…”

“…The applications of ionizing radiation extend to a very important and sensitive area for the Moroccan economy which is agriculture, for this a gamma irradiator has been installed since 1995 at the National Institute of Agronomic Research (NIAR) in the city of Tangier, is considered unique in Morocco, since its installation there was several researches in this field, for the preservation of food, inhibition of germination, production of new varieties etc, indeed several products have been irradiated like sensitive oils, dried figs, strawberries, oranges, and all with the aim of progressing and developing Moroccan agriculture and increasing production yield. [2][3][4][5] In this work, we will be promoting a very important application of gamma radiation other than those in the agricultural sector, it is the decorative coloring of glass by gamma radiation coming from the NIAR irradiator. In this term, small cups of crystal white glass were irradiated at different doses of between 0 and 1500Gy.…”

Gamma-irradiation effect on the chemical composition and antibacterial activity of the Moroccan Tanacetum Annuum L. Essential Oil

“…Because such systems allow for very reproducible and stable measurements (Aknouch et al, 2020b), the uncertainties in the experimental dose were rather low and amounted to 3.5% (Nasreddine et al, 2021). Alanine is an amino acid, and alanine dosimeters are in the granules form with a nominal diameter of 5.0 mm and a thickness of about 2.3 mm, their irradiation produces free radicals, the concentration of these is proportional to the absorbed dose, and measured by instrumentation is called electron paramagnetic resonance spectrometer (EPR) (Aknouch et al, 2020a).…”