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Hazmat > SPRD-GN > Flashcards

SPRD-GN Flashcards

1
Q

Can this be used in an explosive environment?

A

No

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2
Q

True or False: This is intended to be used as a personal dosimeter.

A

False

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3
Q

What is the gamma dose rate limited to?

A

25 mrem/h

(250 uSv/h)

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4
Q

What kind of batteries does this take? How many hours of battery life does it have?

A
  • 2 AAA LiH batteries
  • Est 150 hours
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5
Q

What kind of radiation does it detect?

A

Gamma and Neutron

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6
Q

What does NBR stand for and what is its function?

A

Natural Background Rejection. This algorithm allows the SPRD separate man made gamma radiation from naturally occurring background radiation.

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7
Q

What does NORM stand for?

A

Naturally Occurring Radioactive Material

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8
Q

What kind of technology does is use? Describe how it works.

A

A single CLYC (Cesium Lithium Yttrium Chloride) scintillator simultaneously detects neutron and gamma radiation. The CLYC is also equipped with a mini silicon photomultiplier (SiPM), allowing the detection of very low levels of radiation.

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9
Q

How many measurement values are recorded internally?

A

At least 1600 mean and max values of the gamma dose/count rate and neutron count rate are recorded

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10
Q

What color flashes when gamma is detected?

A

Orange

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11
Q

What color flashes when neutron is detected?

A

Blue

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12
Q

How do you acknowledge alarms?

A

Hit button on the top right of the SPRD

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13
Q

What units of measure can the SPRD display?

A

Cps, Roentgen, Rem, Gray, Sievert

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14
Q

What is displayed on the screen when a Lu test is required?

A

A triangle with an exclamation point on the left side. The number of days past the test date at the top. “Lu-adjust required” along the bottom.

You can acknowledge with the right arrow or start the test with the left arrow.

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15
Q

Are neutron dose rates and calculations performed?

A

No

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16
Q

What will the screen show if the meter encounters a higher dose rate than what it can measure?

A

“Overload”

17
Q

Can you use the SPRD in pulsed fields?

A

No

18
Q

What is this meter used for?

A

Detecting and localizing gamma and neutron radiation sources

19
Q

The use of _________ for neutron detection makes the RadEye SPRD-GN an ideal solution for gamma-neutron detection.

A

Pulse Shape Discrimination (PSD)

20
Q

Are the gamma and neutron audible alarms different?

A

Yes

21
Q

How long is the “Learning” period?

A

After startup the message “Learning” is displayed together with a progress bar for the first 16 s.

22
Q

What happens when the meter is “Learning”?

A

During this time the sig-
ma-alarm levels of the gamma channel is adapted more quick-
ly to the current radiation level. During this time period the sigma alarms are active, however not yet with the full sensitivity.

23
Q

What is shown on the basic display screen after being turned on?

A

The gamma channel

24
Q

What does the “On” key or down arrow do?

A

Normally the On key toggles between standard display and
gamma value on a time axis

25
Q

What lets you know that the meter is working properly?

A

A pulsing heart beat and auto adjust symbol signalizes that the RadEye SPRD-GN is working properly.

26
Q

How many alarm thresholds are checked?

A

At least six alarm
thresholds are checked.

27
Q

What is the “info line” at the top of the screen used to display?

A

Ambient temperature, the NBR-Status or any kind of malfunc-
tion.

28
Q

What will the first click of the up arrow (INFO button) show you?

A

The current gamma dose rate (μR/h, μSv/h, μGy/h or rem/h),

29
Q

What will the second click of the up arrow (INFO button) show you?

A

The accumulated gamma dose (R, Sv, Gy or rem) additionally the remaining time until the dose alarm 1 is reached, assuming the current
dose rate will persist.

30
Q

What will the third click of the up arrow (INFO button) show you?

A

The mean value and peak value of the measured gamma count rate (cps), together with the time
indicated since the last reset.

31
Q

What will the fourth click of the up arrow (INFO button) show you?

A

The mean value and peak value of the measured neutron count rate (cps), together with the time indicated since the last reset. (if neutron measurement is enabled)

32
Q

What button do you press to cycle through the Information Mode display?

A

The up arrow (Info) button

33
Q

What button do you press to cycle through the Channel Mode display?

A

The down arrow (On/Screen) button

34
Q

What will the first click of the down arrow (On/Screen) button show you?

A

The neutron channel

35
Q

What will the second click of the down arrow (On/Screen) show you?

A

Dual channel display

36
Q

What will the third click of the down arrow (On/Screen) show you?

A

Graphical display of gamma count rate

37
Q
A

Hazmat (18 decks)

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