اختبار: فيزياء الطب النووي A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 20 questions. More Questions You will get deferent questions every time you take the quiz. Correct AnswersThere could be more than one correct answer, select all that apply.Skip QuestionsYou are allowed to scroll backward and forward before submitting your answers.10 MinutesThe quiz has a time limit. Time's up You can still submit your answers after the allowed period of time has ended . When ready, click Next to start the quiz. Name (Required) Email (Optional) Twitter (Optional) 1. Elements with same atomic number and different atomic mass number are called? Isotopes Isomers Isotones Isobars None 2. The minimum amount of energy needed to overcome the forces holding the atom together is called: Binding energy Holding energy Thermal energy Kinetic energy None 3. The ratio of net counts in the photopeak to net counts in the entire spectrum is called: Photopeak efficiency Photopeak window Energy constant Energy resolution None 4. When only image quality is considered, the best possible distance between the collimator and the patient’s body for a gamma-camera equipped with HRES collimator is: Contact 1 in 10 cm Half the collimator diameter None 5. Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting ionizing radiation. The emission is described as spontaneous meaning: The nucleus decays without collision with shielding material The nucleus decays after collision with shielding material The nucleus decays after collision with another particle or atom The nucleus decays without collision with another particle or atom None 6. Which of the following is the half-life? Time taken for the number of radioactive nuclei to decrease by a factor of two. Reciprocal of the decay constant. Decay constant multiplied by the natural logarithm of two. Time taken for the number of radioactive nuclei to increase by a factor of two. None 7. Which of the following sentences correctly describes a positron? A particle having a mass equal to the electron but opposite charge A particle having a mass equal to the proton but opposite charge A particle having a mass equal to the electron and no charge A particle having a mass equal to the proton and no charge None 8. Dual time-point imaging (DTPI) can improve accuracy of positron emission tomography (PET) imaging. DTPI technique is a specialized protocol in which: Delay imaging is performed Flow study is performed followed by static imaging Two days delay imaging is performed Dual-isotope technique is applied None 9. In isomeric transition decay, the extra energy in the nucleus is released by the emission of: Neutrons X-rays Gamma photons Electrons None 10. One of two or more different nuclides having the same mass number is called: Isotone Isotope Isomer Isobar None 1 out of 10 Time's upTime is Up! بواسطة ناصر المطيري|2021-09-20T14:26:04+03:00أبريل 15th, 2021|معلومات عامة|لا توجد تعليقات شارك هذه الصفحة, واترك رأيك حول الموضوع باستخدام وسيلة التواصل التي تناسبك FacebookXLinkedInWhatsAppPinterestEmail عن: ناصر المطيري كبير أخصائيي الطب النووي في مستشفى حفر الباطن المركزي و مؤسس موقع نيوكليرمد. منشورات متعلقة اختبار: أساسيات الطب النووي اختبار: أساسيات الطب النووي أبريل 15th, 2021 | لا توجد تعليقات اختبار: رعاية المريض اختبار: رعاية المريض مارس 10th, 2021 | لا توجد تعليقات اختبار: الصيدلة النووية اختبار: الصيدلة النووية مارس 10th, 2021 | لا توجد تعليقات اختبار: الإختصارات والمصطلحات الطبية اختبار: الإختصارات والمصطلحات الطبية مارس 8th, 2021 | لا توجد تعليقات اضف تعليقا إلغاء الردتعليق أعلمني بمتابعة التعليقات بواسطة البريد الإلكتروني. أعلمني بالمواضيع الجديدة بواسطة البريد الإلكتروني. Δ
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