TEST BANK 1-100

radiation emitted from orbitals of an atom

• X-RAY

power rating of C-arm x-ray unit

• 12 KW

electrostatic

• CONCERNING RESTING ELECTRIC CHARGES

cannot affect H & D curve process control chart?

• RECORDED DETAIL

primary purpose of adding blue dye to the base of the x-ray film?

• REDUCE GLARE WHEN VIEWING IMAGE

power consumption when the incident photon is 95 kVp and 2 mA?

• 190 W

Given 50 kw and 100 kw, the 100 kw x-ray unit

• HAS A HIGHER FREQUENCY

interaction produces from 18 kev for fatty breast tissues?

• PHOTOELECTRIC

The anode and cathode are respectively charged as

• POSITIVE AND NEGATIVE

heat units of 3 phase 12 pulse with a 120 kVp, 100 mA and .14s?

• 200 Rad

level radiation interaction begins?

• MOLECULAR

x-ray most likely having the LEAST voltage ripple?

• 3 PHASE, 12 PULSE

voltage transformer that selects kVp is

• AUTOTRANSFORMER

pulses produced if the time is set 0.2 second of have wave rectified circuit?

• 12 PULSES

HVL for 80 kVp?

• 2 to 4 mm Al

Radiation can be done

• ATTENUATED

filament of the x-ray tube is located in the

• CATHODE SIDE

NOT most likely produced of characteristic x-ray?

• BECAUSE IT PRODUCES SCATTERED RADIATION

x-ray output of 50 mAs, if the x-ray intensity at 10 mAs is 10mR?

• 50 mR

NOT a characteristic of an x-ray beam

• MONOENERGETIC

NOT needed to produce x-ray?

• FILTERS

type of electromagnetic radiation interacts with matter like a particle?

• GAMMA RAYS

HIGHEST x-ray quantity to the x-ray beam?

• 1.5 mm Al

x-ray intensity if the distance from a point source is tripled?

• ONE NINTH

x-ray intensity from 1 meter, if the measured intensity at 2 meters is 100mR?

• 400 mR

type of radiation as a particulate?

• ALPHA RADIATION

interaction most likely to occur from 18 kev on fatty breast tissues?

• PHOTOELECTRIC

TVL of diagnostic x-ray energy has fallen to one

• THE DEPTH WHICH BEAM INTENSITY HAS FALLEN TO ONE/TENTH

graph shows allowable factor of mA, kVp and time combination of an x-ray tube?

• RADIOGRAPHIC RATING CHART

nuclear magnetic dipole possess?

• MAGNETIC SPIN

mAs is the x-ray machine sent to 200 mA, ½ seconds?

• 150 mAs

found in a positive electrode side in the x-ray?

• ANODE

x-ray measures 0.5 mR at 1m from patient?

• 0.5 R

LEAST abundant molecule in biological system?

• NUCLEIC ACID

tissue most sensitive?

• GONADS

associated with studies induced cancers of radiation therapy of Ankylosing Spondylitis?

• LEUKEMIA

NOT 3 types of risk estimates for radiation?

• EPIDEMIOLOGICAL

dose needed sterility to human?

• 200 rad

reduced if incident x-ray if one half value layer of thickness is used?

• 1/2

assist and hold the patient during the conduct of radiographic procedure?

• COMPANION OF PATIENT

TRUE of Tenth Value Layer?

• THE SHIELDING NECESSARY REDUCE EXPOSURE TO 1/10

dose of radiation will start to result skin reddening?

• 2 Gy

given factor of time to a room area stayed by a person?

• OCCUPATIONAL FACTOR

When should gonads shield be used?

• WHEN THE GONADS ARE IN THE ORGAN OF INTEREST

can cause significant gonadal shielding exposure?

• WHEN THE GONADS ARE IN THE PRIMARY BEAM

HIGHEST exposure time to the patient thickness?

• 30 cm

material readily transmitting all incident x-ray?

• RADIOPARENT

Linear Non-threshold is a type of dose response?

• DEATH

call a wall that absorbs scattered and leakage radiation?

• SECONDARY WALL

Inverse Square law is result of

• DIVERGENCE

Not part of DNA?

• RNA

Not related to patient dose?

• FREQUENCY

Refers to quenching of gases?

• GM COUNTER

Factor affecting radiation tissue attenuation?

• TISSUE DENSITY

works the ionization in air?

• GM COUNTER

Sensitivity specks in the silver halide?

• FOCUS CENTER OF X-RAY

expected dose reduction of the patient when a 400 speed film is used instead of 100?

• 25%

unit of LET?

• Kev/um

pregnant woman asked the RT if this will affect her pregnancy? What should the RT do?

• SEEK ADVICE FROM RADIOLOGIST BEFORE PROCEEDING

reduce the amount of scatter radiation?

• INCREASE PART FILM DISTANCE

unit of radiographic Workload?

• mA min/week

not considered as an Acute Radiation Syndrome?

• MALIGNANCIES

highest LET?

• ALPHA PARTICLES

exposure is considered arising from his job?

• OCCUPATIONAL

most radiosensitive?

• BONE MARROW

annual dose equivalent exposure for an occupational exposure average for 5 years?

• 20 mSv

not considered a radiation damaged model to human chromosomes?

• NORMAL ABERRATION

reproductive organ known as ovary?

• WOMAN

material used in phosphor?

• Cal

KVp is increased by 15%, What happened to the mAs, if SID remains the same?

• DOUBLED

reproductive organ known as ovary?

• WOMAN

Energy is enhance by?

• INTENSIFYING SCREENS

important tank in the replenishment?

• DEVELOPER

ray tube mA capacity?

• 100

Adequate drying is necessary to

• REDUCED ARTIFACT

greater for green light compared with red light?

• ENERGY

required for darkroom safelight in 20w at 4ft? What will be the wattage needed for the safelight?

• 5 W

tolerance for kVp test used in x-ray units?

• 5% of set kVp

area of the anode material struck by the electron during x-ray production?

• ACTUAL FOCAL SPOT

chest x-ray procedure will likely use?

• 500 mA

not considered using a film screen combination?

• LOW kVp

colored filter will allow darkroom processing most in new modality of film?

• RED

considered a type of modality using diagnostic x-ray imaging?

• MAMMOGRAPHY

Between Developing and fixing tank?

• CROSSOVER RACK

should increase to reduce radiographic noise?

• mAs

control of replenishment system?

• FLOATING VALVE

intensity of dark room safelight with intensity of 20watts at 4ft? What will it be?

• 5 WATTS

pulses in one second given by a rectified x-ray machine?

• 120

type of chart describes what technical factor are unsafe and safe tube equation?

• TUBE RATING CHART

function of oil used in high voltage section in x-ray imaging system?

• ELECTRIC INSULATOR

not an x-ray SOLID specification?

• AUTOMATIC INTERLOCK

material used for the construction of entrance roller?

• RUBBERIZED PLASTIC

produced to diagnostic x-ray?

• LIFESPAN SHORTENING

known as breaking down of macromolecules in water and carbon dioxide?

• CATABOLISM

LEAST affect during fluoroscopy?

• GRID RATIO/FREQUENCY

NOT affect in the production of scattered x-ray?

• FILM

mobile/Ward the RT should stay _______ from the patient?

• 8ft/6ft

TRUE about HVL?

• SHIELDING NECESSARY TO REDUCE ABOUT BY 1/10

will be emitted When TLD is heated?

• VISIBLE LIGHT

LEAST non-lethal radiation hazard to the embryo?

• DURING THE THIRD TRIMESTER