Who administers “The Regulations”?
Ca. Dept. of Health Service, RHB
“The Regulation” are:
Provisions that must be complied with
X-ray machines must be registered with the RHB within
___of acquisition, transfer or disposal,
30 days
Leakage from the x-ray tube housing, one meter away, shall measure no more than:
100mrad
Which item is used to attenuate stray radiation to the required degree?
2nd. protective barrier
The material placed in the useful beam to absorb preferentially the less penetrating radiation is a:
Filter
What term is used to attenuate the useful beam to the required degree?
Leakage radiation
Which item is used to attenuate the useful beam to the required degree?
Primary protective barrier
Radiation that has been deviated in direction during passage through matter is called:
Scattered radiation
The term that includes both leakage and scattered radiation is:
- 2nd. radiation
* stray radiation
The radiation considered the useful beam passes through which of the following items?
- aperture
- x-ray window
- cone or other collimating device
The energy imparted by ionizing radiation per unit mass of irradiated material is referred to as:
Absorbed dose
The product of the absorbed dose in tissue, and the quality factor is related to:
- rem
- dose equivalent
- seivert
Eye dose equivalent is:
- an external exposure of the lens of eye
- taken at a tissue depth of 0.3 cm
When is an individual considered a “member of the public” during any period in which the individual received an occupational dose?
never
A health effect for which a threshold is believed to exist, the severity of which varies with the dose describes:
- deterministic effect
- non-stochastic effect
A/n example(s) of stochastic effects is/are:
- cancer incidence
- hereditary effects
How often must an X-ray supervisor & Operator review the radiation protection program’s content & implementation?
Annually
The annual dose limits for individual members of the public is:
0.1 rem
Which of the following must be poster or readly available?
- form RH-2364
- copy of current regulation
- a sign reading “CAUTION X-RAY”
Deliberately exposing an individual for training or demonstration is:
always prohibited
The exposure must be___when the useful beam barrier/useful beam congruence (image intensifier) is removed.
automatically terminated
X-ray units that are strictly fluoroscopic in nature require a___.
primary barrier
in order to appropriately monitor matters during fluoroscopy, the control panel must contain which of the following device(s)?
KVP & MA indicator
What do Regulation say concerning the wearing of a personnel monitoring device for the following situation: a cardiologist that is operating a C-arm?
it’s required
The term used to define any area where an individual could received a dose equivalent in excess of 0.005 rem (0.05mSv) in 1 hour at 30cm from the radiation source is:
radiation area
The term used to define any area where an individual could received a dose equivalent in excess of 0.1 rem (1.0 mSv) in 1 hour at 30cm from the radiation source is:
high radiation area
Monitored radiation dose of the embryo/fetus shall be no greater than _____ in any month. (excluding medical exposure).
0.05 rem (0.5 mSv)
The SSD of mobile equipment must not be less than:
12”
Which of the following are true?
mobile fluoroscopic equipment must always be equipped with an image intensifier
In reference to a mobile unit, if the collomation diaphragm is not in place:
The fluoroscope shall not function
Which of the following simulate a patient and are considered approved phantoms for fluoroscopic QA testing purposes?
9 inches of water & 7.9 inches of lucite
Protective aprons must be worn by everyone except the patient, if one is likely to receive ____ or more.
5 mrads/hr
An observation window must provide radiation attenuation _____ to that required in the surrounding barrier.
At least .25 mm Pb equivalent
The operator station or shield intercept the useful beam and radiation which has been:
Scattered only twice
The operator shall be able to _____ with the patient without leaving the shielded position at the control panel.
I. feel II. observe III. communicate
II & III only
The table top or upright film holder must not exceed ____ equivalent at 100 kVp.
1mm Pb
The exposure switch on any x-ray machine, including mobile, must be of a dead-man type and be so arranged that the operator can stand at least ____ away from the useful beam.
6 feet
What device is used to attenuate leakage & scattered radiation to the required degree?
primary protective barrier
