title: A practical method to determine the heating and cooling curves of x-ray tube assemblies.
abstract: A practical method to determine the heating and cooling curves of x-ray tube assemblies with rotating anode x-ray tube is proposed. Available procedures to obtain these curves as described in the literature are performed during operation of the equipment, and the precision of the method depends on the knowledge of the total energy applied in the system. In the present work we describe procedures which use a calorimetric system and do not require the operation of the x-ray equipment. The method was applied successfully to a x-ray tube assembly that was under test in our laboratory.
authors.affiliation: Instituto de Eletrotécnica e Energia da Universidade de São Paulo, Av. Prof Luciano Gualberto, 1289, CEP 05508-010, São Paulo, SP, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Bottaro
authors.forename: M
authors.initials: M
authors.lastname: Moralles
authors.forename: V
authors.initials: V
authors.lastname: Viana
authors.forename: G L
authors.initials: GL
authors.lastname: Donatiello
authors.forename: E P
authors.initials: EP
authors.lastname: Silva
mesh_terms: D002138:Calibration; D002151:Calorimetry / Q000295:instrumentation* / Q000379:methods; D003080:Cold Temperature; D004867:Equipment Design; D006361:Heating; D006358:Hot Temperature; D006801:Humans; D015233:Models, Statistical; D011789:Quantum Theory; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement; D011859:Radiography / Q000295:instrumentation* / Q000379:methods; D013679:Technology, Radiologic; D013696:Temperature; D014965:X-Rays