T1

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T1

In magnetic resonance, the time for 63% of longitudinal relaxation to occur; the value is a function of magnetic field strength and the chemical environment of the hydrogen nucleus; for protons in fat and in water, in a 1.5T magnet, about 250 milliseconds and 3000 milliseconds, respectively. A T1-weighted image will have a bright fat signal.

T1/2

symbol for the half-life of a radioactive isotope. Half-life has -t1/2.

T1, T2, ...

symbols for thoracic nerves.

T1, T2

T1

An MRI term for the time constant at which spins realign themselves with the external magnetic field after excitation.

T1

magnetic resonance The time for 63% of longitudinal relaxation to occur; the value is a function of magnetic field strength and the chemical environment of the hydrogen nucleus.
References in periodicals archive ?
The combination of Ericsson's state-of-the-art AXD 301 ATM Switch and Diveo's flexible transmission elements have allowed us to quickly and cost-effectively scale our fixed wireless metropolitan, broadband networks to support access rates for our services ranging from nx64kbps to 155 Mbps," said John Holmblad, Executive Vice President and Chief Technology Officer, Diginet Americas, Inc.
Examples of these services include fractional T1/E1 services for traditional Nx64kbps private line applications as well as xDSL services in which the MSC-900 is used to concentrate ATM traffic from Digital Subscriber Line Access Multiplexers (DSLAM).
048 Mbps trunks, 64 kbps channels or nx64kbps timeslots without demultiplexing the PCM transmission.