Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
If enough explosives are used to spread radioactive material over a broad area then radioactivity is?
|
Diluted and may not be much higher than background radiation levels.
|
|
|
During a radiation emergency at a dose rate of ________ per hour, emergency personnel should await specific inst. from rad. officers i how to proceed.
|
10 rem/hr
|
|
|
During a rad. emergency, the dose limit for individuals engaging in life saving activities is ______ rem.
|
25
|
|
|
Radioactive material that is attached or assoc. w/ dust particles or in liquid form on various surfaces is the definition
|
Radioactive contamination
|
|
|
The design of a _______ imaging suite involves significant rad. concerns
|
PET/CT
|
|
|
Each fluorine-18 nuclear transformation by positron decay yields 2 highly penetrating _____ photons?
|
511 kilo-volts
|
|
|
Diagnostic tech. in nuclear medicine typically make use of _______ radioactive isotopes as radioactive tracers?
|
Short lived
|
|
|
While a pt. receives I-131 therapy and is hospitalized a lrg. ____ rolling Pb shield can be placed between the pt. and attending personnel for protection.
|
1 in thick
|
|
|
Strontium-89 is a pure _______ emitter?
|
Beta
|
|
|
A _____ is neutron that transforms itself into a combination of a proton and an energetic electron?
|
Beta decay
|
|
|
Strontium is a member of the same family of elements on the periodic table as???
|
calcium
|
|
|
Tellurium-125 has ____ protons and ____ neutrons.
|
52 and 73
|
|
|
I-125 in the form of titanium encapsulated cylindrical seeds has been used quite extensively within the past decade to give tumorcidal rad. equiv. dose to?
|
prostate cancer
|
|
|
Therapeutic isotopes are characterized by???
|
relatively longer half lives
|
|
|
Ionization chambers connected to electro-meters are used by med. physicist to perform the standard measurements required by state fed. healthcare accred. org. for rad. and fluoroscopic devices...these devices include?
|
all of thee above
|
|
|
Which of the following is not true about monitoring instruments?
|
They are equally sensitive in the detection of ionizing rad.
|
|
|
Which component of the gieger-muller detector alerts the operator if the prescense of ionizing rad.
|
audio amplifier and speaker
|
|
|
Which of the following are disadvantages of using pocket ionization chambers as personal dosimeters?
|
all of thee above
|
|
|
Which of the following doisemeters resembles an ordinary fountain pen?
|
pocket ionization chamber
|
|
|
Which of the following items is not a basic component of the film badge dosimeter?
|
charged electrodes
|
|
|
The effective atomic # of Lithium fluoride is equal to?
|
8.2
|
|
|
In diagnostic imaging the _________ of the opt. stim. lumin. dosimeter makes it ideal for mocking employees working in low rad. env. and for preg. workers.
|
Increased sensitivity
|
|
|
The sensing crystals contained in the TLD are exposed to ionizing rad. which of the following occurs.
|
some of the electrons in the crystalline ? structure of the lithium fluoride molecule absorb energy and are excited to a higher energy level
|
|
|
Which device uses an aluminum oxide detector?
|
optically stim. lum. dosimeter
|
|
|
Which of the following instruments generally has a check source of a weak long lived radioisotope located on one side of the external surface to varify its constancy each day?
|
Geiger-Mueller counter
|
|
|
Ionization chamber type survey meter is known by a more common name...
|
cutie pie
|
|
|
What do film badges, opt. stim. lumin. doisemeters , pocket ionization chambers and TLD's have in common?
|
all used for personal monitoring
|
|
|
What is the maximum period of time a TLD may be worn as a personal doisemeter?
|
monthly
|
|
|
Metal filters contained in a film badge generally composed of what material?
|
Al and Cu
|
|
|
Actual long-term affects of a dirty bomb are?
|
minimal
|
