X-ray Flashcards

1
Q

What is the primary use of an X-ray?

A

To look inside a container

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2
Q

What can an X-ray help identify?

A

bomb components, fuzing system, load, possible point of entry

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3
Q

What are other uses of X-rays

A

Looking for hidden: firearms, drugs, serial numbers, circuit breakers

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4
Q

What angle does the X-ray head focus

A

40 degree angle

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5
Q

Does the X-ray contain any radio active isotopes?

A

no

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6
Q

X-rays energy is measured in what?

A

Kilovolts (KV)

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7
Q

What does a higher KV mean?

A

more penetration

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8
Q

X-ray generator produces _____ heat and ____ x-ray?

A

99% heat, 1% X-ray

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9
Q

What does the mineral oil do for the X-ray tube?

A

dissipates heat

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10
Q

How much radiation does a person absorb on average annually

A

620milirem per year

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11
Q

What are the risks of radiation

A

High does of radiation is hazardous to health
cannot be detected by human senses
portable Xray units may expose user or bystanders

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12
Q

What kind of effects are associated with acute dose of RAD

A

early

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13
Q

What kind of effects are associated with chronic dose

A

late effects

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14
Q

What are the effects of RAD on personnel

A

Cell alteration in juveniles under 18, external effects, internal effects

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15
Q

Are X-rays cumulative?

A

Yes

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16
Q

What will protect you from the effects of RAD?

A

Time distance and shielding

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17
Q

What is a good rule of thumb regarding protecting yourself from RAD exposure

A

Observing blast and frag safety distances you will be outside RAD safe distances

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18
Q

What is the safe distance for X-rays

A

20’ to rear and sides, 100’ to front

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19
Q

Which is more dangerous RAD or blast and Frag?

A

Blast and Frag

20
Q

What type of Xray is the XR200

A

pulse generator

21
Q

What are the 3 types of Xray machines

A

continuous wave, pulse, fluoroscope

22
Q

When using pulse generators you can sometimes develop what kind of images

A

double images

23
Q

What is the KV rating for the XR150

24
Q

What is the KV rating for the Xr200

25
What is the KV rating of the XRS-3
270 KV
26
What is the KV rating of the XRS-4
370 KV
27
What is an advantage to continuous wave
ability to increase or decrease KV
28
What does KV and KVP mean
Kilovolt and kilovolt peak
29
What are the decals on the XR200
Xray on, Xray pulsing, 40 degree beam, caution RAD
30
If you want to connect to XR200 remotely what should the default pulse be set to?
99
31
What is the service life of the Xray tubes
100,000 pulses
32
What can you do in a fuel rich environment to keep the Xray source from setting off an explosion
place the source in a 6 mil plastic bag
33
What can you do to open up the beam angle
back that ass up
34
At a minimum what is the best source placement
4 ft
35
When shooting Xray what is best to shoot long axis or short axis
Short axis
36
What is an easy pulse reference
4ft-40, 8ft-80 ect
37
What is the inverse square law rule
double the distance 4X the pulses, ie 4 ft-80 pulses 8ft-320 pulses
38
Why do you always Xray steel pipes
to ensure there is nothing hazardous inside the pipe
39
When Xraying a human what is a good starting point?
under 200 lbs-400 pulses 3' from skin | over 200 lbs 800 pulses 3' from skin
40
When taking Xrays what should you do if your panel has to be further away from your package
back up your source
41
What are the parts of an XR-200
collimator, tube, tripod mount
42
What should you do if the Xray does not pulse
check battery, check 20Amp fuse
43
How close should the film be to the package
1/4-1/2 inches
44
How does the Xray panel work
The panel captures the Xray energy and stores the pattern as a latent image
45
What occurs to the image if the wrong side of the panel is exposed to the Xray
The image will be in reverse
46
What is the effect when the panel is 1 foot behind the package
items appear larger
47
How many milirems will you receive per hour if you stay 20' behind the source
never more than 2 milirems which is acceptable