The time required after precessing spins have aligned at an angle to the external field due to an RF pulse losing 63% of their coherence is
a. spin density (r).
b. spin-spin relaxation time (T2).
c. echo time (TE).
d. spin-lattice relaxation time (T1).
d. spin-lattice relaxation time (T1).
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Answer the following statement true (T) or false (F)
The metal compounds that are NOT well tolerated by the eye and tend to cause infections are:
A. iron and copper. B. nickel and aluminum. C. stainless steel and lead. D. none of the above.
What parasitic disease is endemic in many developing countries and causes severe symptoms including rash, itch, fever, chills, coughing, and muscle aches?
A. cholera B. HIV C. schistosomiasis D. Candida
Which of the following codes shows properly sequenced modifiers?
A. 24201-76-LT B. 67810-LT-50 C. 67700-RT-50 D. 24201-LT-76