Management of radioactive wastes using a personal computer

This paper describes a software package for a personal computer which deals with storage records of radioactive wastes; the software keeps the records of purchase and use of radioisotopes and makes the inventory records of radioactive wastes. The records for the cargo booking of the wastes for the Japanese Radioisotope Association can be prepared by this software package.     

Digital radiation monitoring system with a personal computer

This paper describes a data processing system of monitors with a personal computer for a radioisotope laboratory. A monitoring system includes 6 area, 6 dust, and 3 gas monitors. Monitor signals through a multiplexer were fed to the personal computer which has analogue ports. Processed data were displayed on a color CRT, stored on a 5 inch mini floppy disk, and printed out as a report. We developed a data processing program with BASIC language. This system largely reduced manpower required to estimate radiation levels in the laboratory. The personal computer has sufficiently enough ability to construct a digital monitoring system for a small radioisotope laboratory.     

A data acquisition system for mass-analyzed ion kinetic energy spectra using a personal computer

An inexpensive data acquisition system has been developed for mass-analyzed kinetic energy experiments which involve scanning the electrostatic analyzer of a reversed geometry mass spectrometer. The various hardware and software design features are described. Results for data obtained with a commercially available VG ZAB-2F mass spectrometer are presented and discussed.     

Data processing system of personnel exposure with personal computer

This paper describes a software package that manages personnel exposure data with a personal computer. The exposure data is automatically transferred to the computer through a floppy disk supplied by film badge service companies. The computer processes data of about 4000 persons who belong to the 11 facilities and prints out the reports on the distribution of personal exposure level. This system made it possible for the radiation protection division to rapidly investigate the actual situation of occupational exposure with less laborious works.     

Evaluation of dispersion in a flow injection system by electrochemical detector and personal computer

Summary The evaluation of dispersion in a FIA system, which is one of the indices of analytical sensitivity and separation, has been studied with an electrochemical detector and personal computer. Two different modes are applied to evaluate the degree of dispersion. One is a flat portion type mode, the other a hanging bell type mode. From these experiments it is possible to easily estimate the degree of dispersion in a FIA system concerning low dispersion (1 < D < 3) and medium dispersion (3 < D < 10), as discussed by Ruzicka and Hansen. Two regulation methods for sample volume in a FIA system are also discussed.

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Untersuchung der Dispersion in einem Fließinjektionssystem mit Hilfe von elektrochemischem Detektor und Personal Computer

Zusammenfassung Die Dispersion in einem Fließinjektionssystem, die für die analytische Empfindlichkeit und Trennung von Bedeutung ist, wurde nach zwei verschiedenen Methoden ausgewertet. Es ergab sich, daß der Dispersionsgrad im niederen (1 < D < 3) und mittleren Bereich (3 < D < 10) (entsprechend den Untersuchungen von Ruzicka und Hansen) leicht berechnet werden kann. Zwei verschiedene Regulierungsmethoden für das Probevolumen in einem FIA-System werden ebenfalls diskutiert.

     

Isotopic ion exchange separation of radioisotopes using an acetone-water-hydrochloric acid system

Isotopic ion exchange for the rapid separation of radioactive mixtures has been further extended through the use of an acetone-water-hydrochloric acid system. Distribution data were obtained for 27 elements in the range of 15–90% acetone, 0.3N HCl indicating a number of new separations. The approach was used for the separation of several radioisotopes from short half-life magnesium matrix for activation analysis. The separations were completed in less than 5 minutes. Research supported by the Advanced Research Projects Agency.     

Versatile high-performance liquid chromatographic computer system for solvent delivery, gradient control and data acquisition using the Commodore 64 personal computer

An interface for a high-performance liquid chromatographic system based on the Commodore 64 personal computer has been designed as an alternative to the expensive and somewhat inflexible solvent programmers and data acquisition systems offered by commercial manufacturers. The system consists of the Commodore 64 with a single disk drive and monitor, and an interface that directly controls the flow-rates of two Waters pumps for solvent delivery in either isocratic or gradient mode, as well as analog-to-digital conversion of chromatographic data and either graphic data output to a dot-matrix printer or digital-to-analog conversion for output to a chart recorder. The interface permits computer-controlled flow-rates of up to 10.0 ml/min, with an accuracy of 0.0047 ml/min at flow-rates of 4.1 ml/min and an accuracy of 0.03 ml/min at flow-rates of 10 ml/min. The software for data analysis permits tabulation of elution times and areas for the peaks in a chromatogram with an option for baseline correction. The data are stored on floppy disks together with information pertinent to the chromatogram (flow-rate, solvent composition, etc.).     

Management of personnel exposure data with a personal computer

This paper describes a software package that manages dosimeter inventory and exposure data with a personal computer. The computer, connected with the access control system, deals with both records of the film badge (FB) supply to workers and the ordering of new FB for a company, processes exposure data and produces reports. The software not only ensures accurate reports but also significantly reduces the tedious labour involved in managing the control system.     

Program in BASIC for Ferguson plot analysis, using a personal computer: application to gel electrophoresis in a continuous buffer

A program in BASIC suitable for personal computers is described which is applicable to gel electrophoresis conducted in a single (continuous) buffer. The curve fitting is to a polynomial function, allowing for an objective selection of the most appropriate curve type and order--linear, convex or concave--in the particular application. Results do not differ significantly from previous programs for evaluation of linear Ferguson plots or of curve fitting to an exponential function for evaluating convex plots, executed on mainframe computers such as the DEC-10 (Digital) and IBM 370 computers. Thus, the program combines original versatility with, for the first time, the possibility for widespread application of Ferguson plot analysis on personal computers.     

Online retrieval of patient information by asynchronous communication between a general purpose computer and a stand-alone personal computer

Asynchronous communication was made between host (FACOM M-340) and personal computer (OLIBETTIE S-2250) to get patient's information required for RIA test registration. The retrieval system consists of a keyboard input of six numeric codes, patient's ID, and a real time reply containing six parameters for the patient. Their identified parameters are patient's name, sex, date of birth (include area), department, and out- or inpatient. Linking this program to RIA registration program for individual patient, then, operator can input name of RIA test requested. Our simple retrieval program made a useful data network between different types of host and stand-alone personal computers, and enabled us accurate and labor-saving registration for RIA test.     

Licensing in the italian regulatory system in the use of radioisotopes

The regulatory system in force in Italy concerning radioisotopes is based on two statutes dating back to 1962 and 1964; the latter is based on a 1962 Directive of European Community, of which Italy is a Member. European Directives of 1980, 1984, 1989, 1990 and 1992 will be enacted into Italian legislation by January 1^st, 1996. In the statutes in force the basic rules are established governing the holding and use of, trading in and disposal of radioactive material. These activities are subject to notification and licensing. Notification and licensing are based on two tiered system: a local, regional or provincial level and a national one, depending on the intersection of a number of parameters. The role of the governmental organs, state agencies such as ANPA (National Agency for Environmental Protection), local administrative bodies, their competence and their powers are discussed with regard to notification and licensing.     

Removal of cesium radioisotopes from solutions using granulated zeolites

The influence of type of zeolite and the flow rate of solution through the column on the removal efficiency of radioactive cesium ions from solution has been investigated. The analysis of the change in the concentration of cesium ions in the solutions and distribution of cesium ions in the column fillings (granulated zeolites), after passing the solutions through the columns filled with various granulated zeolites (zeolite 4A, zeolite 13X, synthetic mordenite) was performed. On the basis of the results of this study, the conditions for the most efficient removal of cesium ions from solutions have been discussed.     

Comparative analysis of65Zn and40K in human urine by Library Least Squares and window methods using a personal computer

The Library Least Squares method was adapted for use on a standard personal computer. It was found to be considerably more sensitive than the window method in the accurate assessment of⁶⁵Zn and⁴⁰K simultaneously presented in human urine samples.U.S. Department of Agriculture, Agricultural Research Service, Northern Plains Area is an equal opportunitylaffirmative action employer and all agency services are available without discrimination.Mention of a trademark or proprietary product does not contitute a guarantee or warranty of the product by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable.     

Analytical calculations using a computer in molecular spectroscopy

The paper deals with the discussion of problems of calculating the vibration-rotation energy and wave functions of polyatomic molecules using systems for analytical calculations. The system developed can be used for obtaining the analytical expressions for the spectroscopic parameters which are useful for solving both the direct and inverse spectroscopic problems.     

Synthesis and thermal energy storage properties of a calcium-based room temperature phase change material for energy storage

Journal of Thermal Analysis and Calorimetry - In order to obtain a low-cost, high latent heat and thermostable phase change material with a phase change temperature between 18 and...     

Remote system for the mass production of short-lived radioisotopes in a cyclotron. Development of the system and radioisotope production

A system was developed for producing short-lived radioactive substances (11CO, 11CO2, 13NN, 13NH3, 18F-, 62Zn2+, 123I-, etc.) on a scale enough for clinical use, which could also be used for analyzing them rapidly and for investigating their production methods, with less received dose by workers. The system enabled us to produce remotely several tens mCi of of short-lived radioactive susbtances readily usable for clinical diagnosis, continuosly for radioactive gases, 11CO, 11CO2 and 13NN, or repeatedly at short intervals for radioactive aqueous solutions of 13NH3, 18F-, etc. Employing this system, the average received dose per month was reduced considerably.