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Exam 5: Radiation Monitoring

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Question 1

Multiple Choice

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Which of the following personnel monitoring devices can be used to provide an immediate exposure readout for a radiation worker? 1) Personnel digital ionization dosimeter 2) Optically stimulated luminescence dosimeter without an in-house reader 3) Pocket ionization chamber 4) Thermoluminesence dosimeter

A) 1 and 2 only
B) 1 and 3 only
C) 1 and 4 only
D) 2 and 4 only

E) B) and C)
F) None of the above

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Question 2

Multiple Choice

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What do optically stimulated luminescence dosimeters,thermoluminescent dosimeters,pocket ionization chambers,and digital ionization dosimeters have in common?

A) These devices are all used for area monitoring.
B) These devices all use the same sensing material to detect ionizing radiation.
C) These devices are all used for personnel monitoring.
D) Each of these devices can only be used for personnel monitoring for a maximum of 6 months.

E) A) and D)
F) A) and C)

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Question 3

Multiple Choice

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When changing employment,what must a radiation worker convey to his/her new employer?

What is the maximum period of time that a thermoluminescent dosimeter (TLD) may be worn as a personnel device?

The digital ionization dosimeter provides an instant read-out of dose information when connected to a computer via a connector such as a (an)

Which of the following are advantages of the personnel digital ionization dosimeter? 1) Instant access to reports 2) No waiting time for mailing dosimeters 3) Lightweight and durable 4) Can be dropped or scratched with little chance of harm to the device

The optically stimulated luminescence (OSL) dosimeter is "read out" by using a (an)

Which of the following instruments is called a cutie pie?

Of the following,which are disadvantages of using pocket ionization chambers as personnel dosimeters? 1) They can discharge if they are subjected to mechanical shock. 2) Because these devices provide no permanent legal record of exposure,health care facilities that use this method to record personnel exposure must delegate someone to keep such a record. 3) If not read each day,the dosimeter may give an inaccurate reading because the electric charge tends to escape.

Which component(s) of the Geiger-Muller survey meter alerts the operator to the presence of ionizing radiation?

The front of the white paper packet of the optically stimulated luminescence (OSL) dosimeter

The effective atomic number (Zeff) of lithium fluoride (LiF) is equal to

An ionization chamber connected to an electrometer is a device that can measure

Which of the following is a disadvantage of the optically stimulated dosimeter?

Three different filters are incorporated into the detector packet of the optically stimulated luminescence dosimeter.Of what are these filters made?

When the sensing crystals contained in the thermoluminescent dosimeter are irradiated,which of the following occurs?

Because of the OSL dosimeter's sensitivity down to as low as 10 µSv for x-ray and gamma ray photons in the energy range 5 keV to 40 MeV,it is an excellent and practical monitoring device for

Whenever the letter "M" appears under the current monitoring period or in the cumulative columns of a personnel monitoring report,it signifies that a (an)

Which of the following personnel dosimeters resembles an ordinary fountain pen externally?

Some of the advantages of the optically stimulated luminescence (OSL) dosimeter are 1) can be used for up to 1 year. 2) lightweight,durable,and easy to carry. 3) integrated,self-contained,preloaded packet.