Receiver bandwidth formula

6 Receiver bandwidth. The size of the receiver BW used for signal acquisition affects the rate of data acquisition (i.e. BW = 1/Δt) and the frequency range of each image pixel (e.g. 100 kHz/128 pixels ~780 Hz/pixel).

1. What is the receiver bandwidth?
2. What is receiver sensitivity formula?
3. What is bandwidth in NMR?
4. What is the bandwidth of an RF pulse?

What is the receiver bandwidth?

The receiver bandwidth is the range of frequencies used during the reception of RF pulses. During the reception phase the readout gradient receives a range of frequencies and converts it into an MR signal using an analogue digital converter (ADC).

What is receiver sensitivity formula?

Calculate Receiver Sensitivity

The sensitivity of a receiver can be calculated if one knows the following performance parameters: the noise figure (NF), the ENBW, and the carrier to noise ratio (C/N) required to achieve the desired quality signal. The sensitivity is as follows: Sensitivity=10×log10(kTB)+NF+C⁄N.

What is bandwidth in NMR?

Bandwidth (BW) is the range of frequencies (measured in Hz) involved in the transmission or reception of an electronic signal. In MRI the term may be used to refer to the frequencies associated either with RF-excitation (transmitter bandwidth, tBW) or signal reception (receiver bandwidth, rBW).

What is the bandwidth of an RF pulse?

The RF-bandwidth depends on the type of pulse used. Spatially selective pulses (such as sinc-like ones) typically excite a relatively narrow range of frequencies (RF bandwidth ≈ 2 kHz). Nonselective pulses (so-called hard or rectangular pulses) excite a much larger range (RF bandwidth ≈ 250 kHz).