Performance evaluation of the reference system for calibration of ipen activimeters

PERFORMANCE EVALUATION OF THE REFERENCE SYSTEM FOR CALIBRATION OF IPEN ACTIVIMETERS Elaine Wirney Martins and Maria da Penha A. Potiens Instituto de Pesquisas Energéticas e Nucleares (IPEN / CNEN - SP) ewmartins@ipen.br, mppalbu@ipen.br @ipen.br INTRODUCTION The formation of good quality image in nuclear medicine services depends on several factors, including the radiopharmaceutical activity, which must be well determined by a specific apparatus, in perfect operating condition, called activimeter. Therefore, the establishment of a quality control program for measuring the radiopharmaceuticals radioactivity before being administered to the patient is crucial to the safe and effective use of the radiopharmaceuticals used in diagnostic and therapeutical procedures. Due to the large number of procedures performed with the use of ionizing radiation in medicine, it is necessary to use of a substantial number of activity equipment meters in order to cover all NMS, and concerns about the development of quality control programs as well as radiological safety are inevitable. Several factors influence the accuracy of the dose given by activimeters. Before becoming available for sale, the activimeter, after its manufacture, is submitted to calibration using a set of certified sources. The manufacturer limits its initial accuracy to a range between +/- 1% and +/- 5%. Over time this accuracy can vary due to pressure changes in the gas of its chamber and electronic attraction. To ensure

integralidade. Engenharia de Software, © 2006 Jair C Leite Processo de Engenharia de Requisitos Feasibility study Requirements elicitation and analysis Requir ements specification Requirements validation System models User and system requirements Requirements document Feasibility report Fonte: Ian Sommerville Engenharia de Software, © 2006 Jair C Leite Design de Software • Processo de converter a especificação num conjunto de modelos que descrevem a estrutura e o…

Ann. Telecommun. DOI 10.1007/s12243-012-0324-9 Modeling the user acceptance of long-term evolution (LTE) services Eunil Park & Angel P. del Pobil Received: 17 May 2012 / Accepted: 22 August 2012 # Institut Mines-Télécom and Springer-Verlag 2012 Abstract With an integrated framework, this paper aims to analyze user perception and acceptance toward long-term evolution (LTE) services, focusing on factors that may influence the intention to use. We conducted a web-based…

photocopying, recording, or by any information storage and retrieval system, without prior permission from the owner. Contact the owner for the information on foreign rights. Question Paper 1: 1. An input field takes the yearof birth between 1900 and 2004 The boundary values for testing this field are a. 0,1900,2004,2005 b. 1900, 2004 c. 1899,1900,2004,2005 d. 1899, 1900, 1901,2003,2004,2005 2. Which one of the following are non-functional testing methods? a.…

by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior permission from the owner. Contact the owner for the information on foreign rights. Question Paper 1: 1. An input field takes the year of birth between 1900 and 2004 The boundary values for testing this field are a. 0,1900,2004,2005 b. 1900, 2004 c. 1899,1900,2004,2005 d. 1899, 1900, 1901,2003,2004,2005 2. Which one of the following are…

Initiation Time: 29-Jul-2010 @ 10:40:30 AM eQUEST 3.64 using D2Comply-3.64 / DOE-2.2-47h2 Review Copy Page: 1 of 22 PRELIMINARY REPORT Project Name (Part 2 of 3) Date T2408SamplePrelim 29-Jul-2010 ANNUAL TDV ENERGY USE SUMMARY (TDV-kBtu/sqft-yr) ENERGY COMPONENT Space Heating Space Cooling Indoor Fans Heat Rejection Pumps Domestic Hot Water Lighting Receptacle Process Exterior Usage TOTALS: Standard Design Proposed Design Compliance Margin 4.62 52.05 30.66 0.00…

Boas Práticas de Fabricação, sugerimos que as seguintes atividades sejam atribuídas aos fornecedores, além é claro do desenvolvimento do sistema ou a construção do equipamento. Elaboração de Especificações Técnicas; Elaboração de Especificações Funcionais, preferencialmente referenciando os itens dos Requerimentos dos Usuários e detalhando como o sistema irá atender a cada requisito; Elaboração de Documentação de Sistema, como por exemplo: dicionário de dados, diagramas de…

Detection and Fire Alarm Systems CEA 4040: July 2003 (en) Copyright by CEA – 3 bis, rue de la Chaussée d’Antin – 75009 PARIS 1 Contents FOREWORD ..................................................................................................................................................................5 0 - INTRODUCTION.....................................................................................................................................................5…

a self-service mode: final user accesses the system and selects from a variety or reports and dashboards desired content. To sum up, by enhancing this analytical capability and allowing business users to better manipulate diverse sources of information, we expect to provide better information to lead to better customer insights and consequently better decision making. Project Scope: The following topics are in scope for this project: * Include new data sources into…

.................................................................... 23 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Business Modeling ......................................................................................................................................... 24 Requirements ................................................................................................................................................. 25 Analysis and Design…