Physics 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. Technetium-99m and Technetium-99 are: Isotones Isotopes Isomers Isobars 2. If the sample volume of a given activity is increased, the counting efficiency of the well counter will: Decrease Not change Increase Approach 0 3. Dual time-point imaging (DTPI) can improve accuracy of positron emission tomography (PET) imaging. DTPI technique is a specialized protocol in which: Flow study is performed followed by static imaging Two days delay imaging is performed Delay imaging is performed Dual-isotope technique is applied 4. Which of the following is the principal decay mode of Tc-99m? Beta minus Pair production Electron capture Isomeric transition 5. 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: 1 in Contact Half the collimator diameter 10 cm 6. Which of the following is the half-life? Decay constant multiplied by the natural logarithm of two. Time taken for the number of radioactive nuclei to increase by a factor of two. Reciprocal of the decay constant. Time taken for the number of radioactive nuclei to decrease by a factor of two. 7. An atom with an unstable nucleus is called a: Radiochemical Radio wave Radiopharmaceutical Radionuclide 8. The nucleus is composed of two types of particles called: Neutrons and protons Quarks and protons Protons and electrons Electrons and quarks 9. An alpha particle is identical to the nucleus of a helium atom. Alpha particles: Are smaller than beta particles Travel unlimited distances Are not charged Are used for radionuclide therapy 10. The ratio of net counts in the photopeak to net counts in the entire spectrum is called: Photopeak window Energy resolution Photopeak efficiency Energy constant 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-03-31T11:37:09+03:00March 31st, 2021| Share This Post With Others! FacebookXLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave a ReplyCancel reply
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