Radioactive iodine-125 and palladium-103 decay by X-ray emission and are used in brachytherapy to treat cancer. Consider two patients, one being treated with I-125 and the other with Pd-103. Both receive a total dose of 145 Gy delivered over 10 months. What can be concluded from the data in the table about these treatments? Note: 1 keV = 1.602 10-16 J.
I. The level of radiation is more uniform over the 10 months using I-125.
II. Initially the level of radiation is higher using Pd-103.
III. The density of sites damaged by radiation is higher initially using Pd-103.
A) All are correct.
B) None are correct.
C) I and III only
D) I and II only
E) II and III only
Correct Answer:
Verified
Q100: The argon-40 method of radioisotope dating
Q101: The natural abundance of uranium-235 is _
A)a
Q102: As the charges of identical small nuclei
Q103: The main radiation source humans are exposed
Q104: A number of techniques are used for
Q106: Which one of the following statements A-D
Q107: Artificial sources account for approximately _ of
Q108: Uranium-235 enrichment involves separations of isotopes of
Q109: The difference between the uranium used in
Q110: Why is a nuclear power plant not
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents