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2017 RO Exam > Radioisotopes > Flashcards

Radioisotopes Flashcards

1
Q

Cs-137 (Cesium-137)

Half-life =
Average energy =
Decay =

A

Cs-137 (Cesium-137)

Half-life = 30 y
Average energy = 662 KeV
Decay = β decay

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2
Q

Cs-131 (Cesium-131)

Half-life =
Average energy =
Decay =

A

Cs-131 (Cesium-131)

Half-life = 10 d
Average energy = 30 KeV
Decay = e capture, characteristic x-rays

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3
Q

Ir-192 (Iridium-192)

Half-life =
Average energy =
Decay =

A

Ir-192 (Iridium-192)

Half-life = 74 d
Average energy = 380 KeV
Decay = β decay, e capture

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4
Q

Co-60 (Cobalt-60)

Half-life =
Average energy =
Decay =

A

Co-60 (Cobalt-60)

Half-life = 5.26 y
Average energy = 1.25 MeV (1.17 MeV & 1.33 MeV)
Decay = β decay, ɤ-rays

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5
Q

Iodine-125 (I-125)

Half-life =
Average energy =
Decay =

A

Iodine-125 (I-125)

Half-life = 59.4 d
Average energy = 28 KeV
Decay = e capture, characteristic x-rays, ɤ-rays

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6
Q

Iodine-131 (I-131)

Half-life =
Average energy =
Decay =

A

Iodine-131 (I-131)

Half-life = 8 d
Average energy = 971 KeV
Decay = e (606 KeV) in 89%, ɤ-rays (364 KeV) in 82%

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7
Q

Strontium-90 (Sr-90)

Half-life =
Average energy =
Decay =

A

Strontium-90 (Sr-90)

Half-life = 29 y
Average energy = 500 KeV (max)
Decay = β decay

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8
Q

Radium-226 (Ra-226)

Half-life =
Average energy =
Decay =

A

Radium-226 (Ra-226)

Half-life = 1,600 y
Average energy = 830 KeV
Decay = α decay, ɤ-rays

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9
Q

Palladium-103 (Pd-103)

Half-life =
Average energy =
Decay =

A

Palladium-103 (Pd-103)

Half-life = 17 d
Average energy = 21 KeV
Decay = e capture, ɤ-rays

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10
Q

Yttrium-90 (Y-90)

Half-life =
Average energy =
Decay =

A

Yttrium-90 (Y-90)

Half-life = 2.67 d
Average energy = 930 KeV
Decay = β decay (pure β emitter)

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11
Q

Phosphorus-32 (P-32)

Half-life =
Average energy =
Decay =

A

Phosphorus (P-32)

Half-life = 14.3 d
Average energy = 1.17 MeV (max)
Decay = β decay

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12
Q

Samarium-153 (Sm-153)

Half-life =
Average energy =
Decay =

A

Samarium-153 (Sm-153)

Half-life = 46.3 h
Average energy = 100 KeV
Decay = β decay, ɤ-rays

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13
Q

Samarium-145 (Sm-145)

Half-life =
Average energy =
Decay =

A

Samarium-145 (Sm-145)

Half-life = 340 d
Average energy = 41 KeV
Decay = ???

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14
Q

Technetium-99m (Tc-99m)

Half-life =
Average energy =
Decay =

A

Technetium-99m (Tc-99m)

Half-life = 6 h
Average energy = 140 KeV
Decay = ɤ-rays

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15
Q

Fluorine-18 (F-18)

Half-life =
Average energy =
Decay =

A

Fluorine-18 (F-18)

Half-life = 2 h
Average energy = 630 KeV
Decay = e capture, e+ emission

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16
Q

Gold-198 (Au-198)

Half-life =
Average energy =
Decay =

A

Gold-198 (Au-198)

Half-life = 2.7 d
Average energy = 412 KeV
Decay = ɤ-rays, β-rays

2017 RO Exam (5 decks)

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