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[en] The goals of construction of the BIGR reactor, which was commissioned in 1977 at the All-Russian Scientific Research Institute of Experimental Physics, are reviewed. The primary avenues of research at BIGR are outlined. A brief description of the neutron-physics parameters of the reactor and the characteristic shapes of generated fission pulses is given. The possible sites for installation of objects to be irradiated are specified. Devices enhancing the irradiation capacity of the reactor are characterized. Current data on various research applications of the reactor are summarized.
[en] Gamma Irradiator category IV are the most common types of irradiators used for food irradiation or sterilization of health equipment. To obtain gamma irradiator category IV operation license required commissioning test report. A commissioning test is performed to ensure that all radiation safety requirements are met correctly. To facilitate the verification of licensing or inspection required a commissioning test checklist. The commissioning test checklist contains the safety features that need to be present and the acceptance criteria. All safety requirements must be full filed and all features should work properly without exception. If there is a feature that fails in the commissioning test then the irradiator can not be operated and may cause the risk of a radiation accident. The performance of safety features should be balanced with good operating procedure performance. Occasionally irradiator facilities meet all requirements of the commissioning test, if the operating procedure is not good, then radiation safety will not be achieved and the risk of accidents still exist. (author)
[en] One of the RSG-GAS reactor utilization is irradiation of topaz gemstones for coloring. Handling of pre irradiated Topaz gemstones especially for in core positions is important to note as it is directly related with the reactor primary cooling water. The impurity element in topaz gemstones is feared to affect the water quality and will indirectly affect to performance of the purification system of reactor primary cooling water. In the established procedure, handling of pre-irradiated topaz gemstones is washing repeatedly and gradually, thus the waste water has a turbidity level of ≤ 0.6 NTU (Nephelometric Turbidity Unit). The washing process is done by using demineralized water produced in the demineralized water system (GCA01). As the handling of pre irradiated topaz gemstones will increase the volume of operating activities of the demineralized water system (GCA01), in order to produce demineralized water except for the need of reactor primary cooling water. This paper will examine the affect of handling of pre irradiated topaz gemstones to the need of demineralized water. The study was conducted by observing the changes happened along the handling process by measuring the quality topaz gemstones wastewater until the turbidity value is having required value which is ≤ 0.6 NTU (Nephelometric Turbidity Unit). The result shows that for 5 kg of topaz gemstones, it needs demineralized water about 80 liters to 90 liters. This study may also be used as a reference in predicting the liquid waste related to the reactor utilization. (author)
[en] The designs of irradiation devices for operating time of cobalt-60 isotope in BN reactors are presented in the paper. A new version of the irradiation device for use in a high-power sodium fast reactor is proposed. The comparison of different variants of irradiation devices according to the obtained specific activity is also given
[ru]В работе представлены конструкции облучательных устройств для наработки изотопа кобальта-60 в реакторах типа БН. Предложен новый вариант облучательного устройства для использования в быстром натриевом реакторе большой мощности. Приведено сравнение разных вариантов облучательных устройств по полученной удельной активности
[en] This publication demonstrates the assessment methodology and compares various methods for assessment security performance for a hypothetical medical irradiator facility. It is intended to be a practical reference. This publication contains seven main sections following the introduction and one appendix. Section 2 provides the terms of reference for the case study. Section 3 discusses the preparation and planning for an SA. Section 4 discusses the collection of required information for an SA. Section 5 discusses the tools and methods used for the conduct of the SA. Section 6 describes the overall summary of security assessment methods utilized for the SA. Section 7 provides the case study conclusions. Section 8 provides the case study recommendations. Appendix I provides a hypothetical facility description and additional detailed information that was used to conduct the SA. References in this publication provide links to important international publications, standards and other guidance publications relevant to NUSAM.
[en] The irradiators of the firm Gamma Service Medical, have many years of exploitation; Nevertheless, 20% of its components generate 80% of the problems that arise. The defects are located mainly in the solenoid, in the LEDs of a card in the control block, in two medium power transistors also from the control block, in the proximity sensors that they control the open and closed states of the shutter, in the half-life of the radiation source, in the actuator and fatigue resistance of the metal that is in the cabinet containing the source of radiation, solenoid, and proximity sensors. Of all the impairments, the most serious of The solution is the fatigue of the metal, mainly the arm that exerts a lever in the opening of the shutter
[en] Utilization of research facilities by the community in order to increase the added value of products required from the government because it encourages the resilience of Non-Tax State Revenue (PNBP). BATAN has a Gama Merah Putih Irradiator which was recently inaugurated in November 2017. Irradiator development has been started since 2014 with a budget of Rp.118.725.266.667, - which includes budget for building infrastructure, irradiator equipment, sources, and other supporting facilities. Based on the feasibility study of the irradiator, it is expected that in the fifth year has reached the payback period with the project development time of 30 years. The tariff rates of non-tax revenues and private tariffs are inseparable from the central government's PNBP management policy in this case the Ministry of Finance. In the Roadmap Segmentation of tariff policy, the role needed for people's lives (down-to-earth tariff policy). The formulation of the problem in this study is how the strategy can provide optimal PNBP, but can reduce operational costs. The goal is to determine the management strategy of Gama Merah Putih Irradiator in order to provide optimal PNBP by taking into account the operational costs. Methodology of data retrieval research using primary and secondary data. Methodology of data processing using descriptive analysis to formulate policy. The results of the research indicate the steps that need to be taken strategic steps of Gama Merah Putih Irradiator to all stakeholders and the community. Another strategy is to establish a marketing network of gamma irradiators. (author)
[en] Beam uniformity of electron irradiation accelerator has a great impact results for industrial radiation process. In this paper, a beam uniformity detector, based on Faraday cup array, has been designed for a 400KV electron irradiation accelerator in Huazhong University of Science and Technology. Suitable structure has been calculated for the secondary electrons emission. Cooling system is necessary for the detector in the condition of high intensity ion beams, and it has been designed by thermostructural analysis. This detector now has been used for experiments successfully. (author)
[en] TRIGA type research reactors, even relatively new ones, are originally equipped with rather obsolete irradiation pneumatic transfer systems. Therefore, the irradiation system of Slovenian TRIGA Mark II system was renewed in 2015 to improve the overall quality of irradiations. This year, the system was upgraded to allow for automated short irradiations under more thermalized neutron flux. The modernization includes also a so-called 'triangular' channel, allowing for in-core irradiation of samples up to 5 cm in diameter and a horizontal channel allowing for irradiations of objects under homogeneous neutron flux in the length of over 60 cm. (author)