A compact Class D RF power amplifier for mobile nuclear magnetic resonance systems

J. Zhen; R. Dykstra; C. Eccles; G. Gouws; S. Obruchkov

doi:10.1063/1.4994734

A compact Class D RF power amplifier for mobile nuclear magnetic resonance systems

J. Zhen, R. Dykstra, C. Eccles, G. Gouws, S. Obruchkov

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A 20 MHz Class D amplifier with an output of 100 W of RF power has been developed. The compact size printed circuit board area of 50 cm² and efficiency of 73% make it suitable for mobile nuclear magnetic resonance (NMR) systems. Test results show that the rise and ring down times of the amplifier are less than 0.2 μs, and it is capable of producing constant amplitude pulses as short as 2 μs. Experiments using a Carr Purcell Meiboom Gill pulse sequence with a NMR MOUSE sensor confirm that the Class D amplifier is suitable for mobile NMR applications.

Original language	English
Article number	074704
Number of pages	6
Journal	Review of Scientific Instruments
Volume	88
Issue number	7
DOIs	https://doi.org/10.1063/1.4994734
Publication status	Published - 1 Jul 2017

Access to Document

10.1063/1.4994734

Cite this

@article{7a1c7b64c6ea45b1a532dc2ada934571,

title = "A compact Class D RF power amplifier for mobile nuclear magnetic resonance systems",

abstract = "A 20 MHz Class D amplifier with an output of 100 W of RF power has been developed. The compact size printed circuit board area of 50 cm2 and efficiency of 73% make it suitable for mobile nuclear magnetic resonance (NMR) systems. Test results show that the rise and ring down times of the amplifier are less than 0.2 μs, and it is capable of producing constant amplitude pulses as short as 2 μs. Experiments using a Carr Purcell Meiboom Gill pulse sequence with a NMR MOUSE sensor confirm that the Class D amplifier is suitable for mobile NMR applications.",

author = "J. Zhen and R. Dykstra and C. Eccles and G. Gouws and S. Obruchkov",

year = "2017",

month = jul,

day = "1",

doi = "10.1063/1.4994734",

language = "English",

volume = "88",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - A compact Class D RF power amplifier for mobile nuclear magnetic resonance systems

AU - Zhen, J.

AU - Dykstra, R.

AU - Eccles, C.

AU - Gouws, G.

AU - Obruchkov, S.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - A 20 MHz Class D amplifier with an output of 100 W of RF power has been developed. The compact size printed circuit board area of 50 cm2 and efficiency of 73% make it suitable for mobile nuclear magnetic resonance (NMR) systems. Test results show that the rise and ring down times of the amplifier are less than 0.2 μs, and it is capable of producing constant amplitude pulses as short as 2 μs. Experiments using a Carr Purcell Meiboom Gill pulse sequence with a NMR MOUSE sensor confirm that the Class D amplifier is suitable for mobile NMR applications.

AB - A 20 MHz Class D amplifier with an output of 100 W of RF power has been developed. The compact size printed circuit board area of 50 cm2 and efficiency of 73% make it suitable for mobile nuclear magnetic resonance (NMR) systems. Test results show that the rise and ring down times of the amplifier are less than 0.2 μs, and it is capable of producing constant amplitude pulses as short as 2 μs. Experiments using a Carr Purcell Meiboom Gill pulse sequence with a NMR MOUSE sensor confirm that the Class D amplifier is suitable for mobile NMR applications.

UR - http://www.scopus.com/inward/record.url?scp=85026199968&partnerID=8YFLogxK

U2 - 10.1063/1.4994734

DO - 10.1063/1.4994734

M3 - Article

C2 - 28764537

AN - SCOPUS:85026199968

SN - 0034-6748

VL - 88

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 7

M1 - 074704

ER -

A compact Class D RF power amplifier for mobile nuclear magnetic resonance systems

Abstract

Access to Document

Other files and links

Fingerprint

Cite this