40 hour radiation safety
elementary particle units with a negative electrical charge and a mass approximately
equal to 1/1840 that of a proton are - CORRECT ANSWER-electrons
positively charged elementary particles with a mass approximately equal to 1840 times
that of an electron, or 1 AMU, are known as - CORRECT ANSWER-protons
unchanged elementary particles with a mass nearly equal that of a proton are called -
CORRECT ANSWER-neutrons
the area known as the center of an atom is called the - CORRECT ANSWER-nucleus
any byproduct material that is encased in a capsule designed to prevent leakage or
escape of the byproducts material is - CORRECT ANSWER-sealed source
a tube through which the radioactive source travels when inside a radiographic
exposure device is a - CORRECT ANSWER-S tube
The symbol R means - CORRECT ANSWER-roentgen
the acronym rad means - CORRECT ANSWER-radiation absorbed dose
the roentgen (R) exposure is measured in - CORRECT ANSWER-air
the symbol mR means - CORRECT ANSWER-milliroentgen
one roentgen or 1 R is equal to - CORRECT ANSWER-1000 milliroentgen
the acronym rem stands for - CORRECT ANSWER-roentgen equivalent man
the initialism QF stands for - CORRECT ANSWER-quality factor
the quality factor for X-rays and gamma rays is - CORRECT ANSWER-1
the quality factor for alpha (ray) particles is - CORRECT ANSWER-20
activity of radioactive material is measured in - CORRECT ANSWER-curies
Becquerels and curies are units of measurement of - CORRECT ANSWER-decay rate
atoms that have excess energy and are unstable are known as - CORRECT ANSWER-
radioactive
, survey meters must be calibrated at intervals not to exceed: - CORRECT ANSWER-six
months and/or after instrument servicing except for batter changes
a survey meter must be capable of measuring a range of - CORRECT ANSWER-2 to
1000 mR/h (0.02 to 10 mSv/h)
becquerels and curies are units of measurement of - CORRECT ANSWER-activity
an analog survey meter must be calibrated on each scale at two points approximately -
CORRECT ANSWER-33% and 66% on the scale's potential
the process that results in the removal of orbital electrons from atoms resulting in the
formation of ion pairs is - CORRECT ANSWER-ionization
the fact that gasses bombarded by ionizing radiation become conductors of electrical
current make them useful in - CORRECT ANSWER-detection equipment
a dosimeter must be capable of reading a range of - CORRECT ANSWER-0-200 mR
(0-2mSv)
pocket ion chambers must be capable of reading - CORRECT ANSWER-200 mR
(2mSv)
an exposure rate is measured by - CORRECT ANSWER-survey meter
what dosimeters (dosimetric devices) are last affected by moisture - CORRECT
ANSWER-TLDs
full deflection of a survey meter while on batter check means - CORRECT ANSWER-
meter may or may not be working properly
dosimeters must be calibrated at intervals not to exceed - CORRECT ANSWER-
annually
rate alarms must be calibrated at intervals not to exceed - CORRECT ANSWER-yearly
a film badge/TLD records what - CORRECT ANSWER-total dose history for the period
worn
when performing radiography in a permanent radiographic installation equipped with an
area monitor, the technician is not required to - CORRECT ANSWER-wear a rate alarm
a direct reading ionization chamber, such as a dosimeter, has the advantage of
providing an - CORRECT ANSWER-immediate dose history since last time charged
elementary particle units with a negative electrical charge and a mass approximately
equal to 1/1840 that of a proton are - CORRECT ANSWER-electrons
positively charged elementary particles with a mass approximately equal to 1840 times
that of an electron, or 1 AMU, are known as - CORRECT ANSWER-protons
unchanged elementary particles with a mass nearly equal that of a proton are called -
CORRECT ANSWER-neutrons
the area known as the center of an atom is called the - CORRECT ANSWER-nucleus
any byproduct material that is encased in a capsule designed to prevent leakage or
escape of the byproducts material is - CORRECT ANSWER-sealed source
a tube through which the radioactive source travels when inside a radiographic
exposure device is a - CORRECT ANSWER-S tube
The symbol R means - CORRECT ANSWER-roentgen
the acronym rad means - CORRECT ANSWER-radiation absorbed dose
the roentgen (R) exposure is measured in - CORRECT ANSWER-air
the symbol mR means - CORRECT ANSWER-milliroentgen
one roentgen or 1 R is equal to - CORRECT ANSWER-1000 milliroentgen
the acronym rem stands for - CORRECT ANSWER-roentgen equivalent man
the initialism QF stands for - CORRECT ANSWER-quality factor
the quality factor for X-rays and gamma rays is - CORRECT ANSWER-1
the quality factor for alpha (ray) particles is - CORRECT ANSWER-20
activity of radioactive material is measured in - CORRECT ANSWER-curies
Becquerels and curies are units of measurement of - CORRECT ANSWER-decay rate
atoms that have excess energy and are unstable are known as - CORRECT ANSWER-
radioactive
, survey meters must be calibrated at intervals not to exceed: - CORRECT ANSWER-six
months and/or after instrument servicing except for batter changes
a survey meter must be capable of measuring a range of - CORRECT ANSWER-2 to
1000 mR/h (0.02 to 10 mSv/h)
becquerels and curies are units of measurement of - CORRECT ANSWER-activity
an analog survey meter must be calibrated on each scale at two points approximately -
CORRECT ANSWER-33% and 66% on the scale's potential
the process that results in the removal of orbital electrons from atoms resulting in the
formation of ion pairs is - CORRECT ANSWER-ionization
the fact that gasses bombarded by ionizing radiation become conductors of electrical
current make them useful in - CORRECT ANSWER-detection equipment
a dosimeter must be capable of reading a range of - CORRECT ANSWER-0-200 mR
(0-2mSv)
pocket ion chambers must be capable of reading - CORRECT ANSWER-200 mR
(2mSv)
an exposure rate is measured by - CORRECT ANSWER-survey meter
what dosimeters (dosimetric devices) are last affected by moisture - CORRECT
ANSWER-TLDs
full deflection of a survey meter while on batter check means - CORRECT ANSWER-
meter may or may not be working properly
dosimeters must be calibrated at intervals not to exceed - CORRECT ANSWER-
annually
rate alarms must be calibrated at intervals not to exceed - CORRECT ANSWER-yearly
a film badge/TLD records what - CORRECT ANSWER-total dose history for the period
worn
when performing radiography in a permanent radiographic installation equipped with an
area monitor, the technician is not required to - CORRECT ANSWER-wear a rate alarm
a direct reading ionization chamber, such as a dosimeter, has the advantage of
providing an - CORRECT ANSWER-immediate dose history since last time charged
