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Flashcards in Radiation Control Regulations Deck (39)
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1
Q

Who administers “The Regulations”?

A

Ca. Dept. of Health Service, RHB

2
Q

“The Regulation” are:

A

Provisions that must be complied with

3
Q

X-ray machines must be registered with the RHB within

___of acquisition, transfer or disposal,

A

30 days

4
Q

Leakage from the x-ray tube housing, one meter away, shall measure no more than:

A

100mrad

5
Q

Which item is used to attenuate stray radiation to the required degree?

A

2nd. protective barrier

6
Q

The material placed in the useful beam to absorb preferentially the less penetrating radiation is a:

A

Filter

7
Q

What term is used to attenuate the useful beam to the required degree?

A

Leakage radiation

8
Q

Which item is used to attenuate the useful beam to the required degree?

A

Primary protective barrier

9
Q

Radiation that has been deviated in direction during passage through matter is called:

A

Scattered radiation

10
Q

The term that includes both leakage and scattered radiation is:

A
  • 2nd. radiation

* stray radiation

11
Q

The radiation considered the useful beam passes through which of the following items?

A
  • aperture
  • x-ray window
  • cone or other collimating device
12
Q

The energy imparted by ionizing radiation per unit mass of irradiated material is referred to as:

A

Absorbed dose

13
Q

The product of the absorbed dose in tissue, and the quality factor is related to:

A
  • rem
  • dose equivalent
  • seivert
14
Q

Eye dose equivalent is:

A
  • an external exposure of the lens of eye

- taken at a tissue depth of 0.3 cm

15
Q

When is an individual considered a “member of the public” during any period in which the individual received an occupational dose?

A

never

16
Q

A health effect for which a threshold is believed to exist, the severity of which varies with the dose describes:

A
  • deterministic effect

- non-stochastic effect

17
Q

A/n example(s) of stochastic effects is/are:

A
  • cancer incidence

- hereditary effects

18
Q

How often must an X-ray supervisor & Operator review the radiation protection program’s content & implementation?

A

Annually

19
Q

The annual dose limits for individual members of the public is:

A

0.1 rem

20
Q

Which of the following must be poster or readly available?

A
  • form RH-2364
  • copy of current regulation
  • a sign reading “CAUTION X-RAY”
21
Q

Deliberately exposing an individual for training or demonstration is:

A

always prohibited

22
Q

The exposure must be___when the useful beam barrier/useful beam congruence (image intensifier) is removed.

A

automatically terminated

23
Q

X-ray units that are strictly fluoroscopic in nature require a___.

A

primary barrier

24
Q

in order to appropriately monitor matters during fluoroscopy, the control panel must contain which of the following device(s)?

A

KVP & MA indicator

25
Q

What do Regulation say concerning the wearing of a personnel monitoring device for the following situation: a cardiologist that is operating a C-arm?

A

it’s required

26
Q

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:

A

radiation area

27
Q

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:

A

high radiation area

28
Q

Monitored radiation dose of the embryo/fetus shall be no greater than _____ in any month. (excluding medical exposure).

A

0.05 rem (0.5 mSv)

29
Q

The SSD of mobile equipment must not be less than:

A

12”

30
Q

Which of the following are true?

A

mobile fluoroscopic equipment must always be equipped with an image intensifier

31
Q

In reference to a mobile unit, if the collomation diaphragm is not in place:

A

The fluoroscope shall not function

32
Q

Which of the following simulate a patient and are considered approved phantoms for fluoroscopic QA testing purposes?

A

9 inches of water & 7.9 inches of lucite

33
Q

Protective aprons must be worn by everyone except the patient, if one is likely to receive ____ or more.

A

5 mrads/hr

34
Q

An observation window must provide radiation attenuation _____ to that required in the surrounding barrier.

A

At least .25 mm Pb equivalent

35
Q

The operator station or shield intercept the useful beam and radiation which has been:

A

Scattered only twice

36
Q

The operator shall be able to _____ with the patient without leaving the shielded position at the control panel.
I. feel II. observe III. communicate

A

II & III only

37
Q

The table top or upright film holder must not exceed ____ equivalent at 100 kVp.

A

1mm Pb

38
Q

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.

A

6 feet

39
Q

What device is used to attenuate leakage & scattered radiation to the required degree?

A

primary protective barrier