Emma's Stack
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Grid cut-off. (Lange Q&A p.194 #6)
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| Which portion of a CR cassette records the radiologic image? | show 🗑
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| show | Contrast (Lange Q&A p.234 #22)
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| Materials that emit light when stimulated by x-ray photons are called... | show 🗑
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| show | Radiographic Density (Lange Q&A p.203 #55)
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| show | Actual and effective focal spot (Lange Q&A p. 203 353)
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| Which developing agent has the biggest impact on the shoulder of the characteristic curve? | show 🗑
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| Focal-spot size, screen speed and OID are all related to ... | show 🗑
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| True/ False Effects of scattered radiation on a radiographic image produce fog | show 🗑
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| Heat from an anode is MOST LIKELY to be disspiated by... | show 🗑
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| show | HU= 1.4 x kvp x mA x s (Bushong p.135 box #2)
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| show | Off-focus radiation (Bushong p.131 para. 5&6)
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| A fluoroscopic examination is performed with a single-phase imaging system at 76 kvp and 1.5 mA for 3.5 mins. How many heat units are generated? (HU= kvp x mA xs) Hint: first convert mins to seconds | show 🗑
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| show | HU= 1.4 x kvp x mAs HU= 1.4 x 82 x 120= 13,776 HU 13,776 x 6 films = 82,656 HU (Bushong p.135 box 2)
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| What type of x-rays are produced when a projectile electron is slowed by the electric field of a target atom nucleus? | show 🗑
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| Added filtration more effectively absorbs low energy x-rays than high energy x-rays. give another name for added filtration | show 🗑
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| Name the three effects that take place when electrons are accelerated from the cathode to the target of the anode | show 🗑
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| show | Increasing KVP (Bushong p.157 penguin box)
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| Diagnostic x-rays undergo ionizing interactions with inner shell electrons. The x-ray is totally absorbed. Name this process. | show 🗑
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| What provides enough illumination in the darkroom while ensuring the film remains unexposed? | show 🗑
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| show | Exposure= Intensity x Time [= constant optical density] (Bushong p.187 box)
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| Which stage of processing sees the latent image converted into a manifest image? | show 🗑
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| show | AEC Automatic Exposure Control (Bushong p.108 para.11)
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| What is responsible for increasing the out put voltage from the autotransformer to kVP necessary for x-ray production? | show 🗑
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| Within the X-ray Circuit, the electronic device that allows current to flow in one direction is called... | show 🗑
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| What is a diode? | show 🗑
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| show | The left Hand Rule (wikipedia.org/wiki/file:left_hand_rule.png)
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| show | 1) tube current 2)target material 3)square of the kilovoltage (radrevieweasy.com QID16718)
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| What is the primary function of an x-ray imaging system? | show 🗑
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| show | 1)tissue density, 2)amount of magnification, 3)distance between the patient and the input phosphur (Radrevieweasy.com QID#16629)
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| Name the study of stationary electric charges | show 🗑
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| show | 1)Useful beam emerges from port window. 2)cathode assembly recieves both high and low voltages, 3) target material should have both high atomic # and high melting point. Radrevieweasy QID 16649
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| show | Rotors and stators (Bushong p.93 figure 5.38)
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| What is the definition of the half value layer | show 🗑
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| Differential absorption and attenuation of the xray beam depend on... | show 🗑
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| Which term describes the amount of electric charge flowing per second? | show 🗑
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| show | secondary voltage- Vs/Vp=Ns/Np secondary amps(I)- Ns/Np=Ip/Is Answer is 200 mA and 77kvp
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| show | mAs. (image Production & Evaluation Handout)
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| Which phenomenom dramatically affects recorded detail when high speed screens are used with extremely low mAs? | show 🗑
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| show | Ammonium Thiosulfate (Process latent image ppt)
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