High power pulsed dynamic nuclear polarisation at 94 GHz

Robert I. Hunter; Paul A. S. Cruickshank; David R. Bolton; Peter C. Riedi; Graham M. Smith

doi:10.1039/c002251a

High power pulsed dynamic nuclear polarisation at 94 GHz

Robert I. Hunter, Paul A. S. Cruickshank, David R. Bolton, Peter C. Riedi, Graham M. Smith

School of Physics and Astronomy

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

22 Citations (Scopus)

Abstract

In this communication we report initial results using high power pulsed techniques at 94 GHz to perform solid state Dynamic Nuclear Polarisation (DNP) on high volume samples. It is shown that excitation with short pulses, comparable to the pi/2 pulse length, at fast repetition rates can result in higher DNP enhancements relative to continuous wave (cw) excitation for the same average power. Peak enhancements are observed at an average power of only a few hundred mW delivered to the sample.

Original language	English
Pages (from-to)	5752-5756
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	12
Issue number	22
DOIs	https://doi.org/10.1039/c002251a
Publication status	Published - 2010

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10.1039/c002251a

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title = "High power pulsed dynamic nuclear polarisation at 94 GHz",

abstract = "In this communication we report initial results using high power pulsed techniques at 94 GHz to perform solid state Dynamic Nuclear Polarisation (DNP) on high volume samples. It is shown that excitation with short pulses, comparable to the pi/2 pulse length, at fast repetition rates can result in higher DNP enhancements relative to continuous wave (cw) excitation for the same average power. Peak enhancements are observed at an average power of only a few hundred mW delivered to the sample.",

author = "Hunter, {Robert I.} and Cruickshank, {Paul A. S.} and Bolton, {David R.} and Riedi, {Peter C.} and Smith, {Graham M.}",

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AU - Hunter, Robert I.

AU - Cruickshank, Paul A. S.

AU - Bolton, David R.

AU - Riedi, Peter C.

AU - Smith, Graham M.

PY - 2010

Y1 - 2010

N2 - In this communication we report initial results using high power pulsed techniques at 94 GHz to perform solid state Dynamic Nuclear Polarisation (DNP) on high volume samples. It is shown that excitation with short pulses, comparable to the pi/2 pulse length, at fast repetition rates can result in higher DNP enhancements relative to continuous wave (cw) excitation for the same average power. Peak enhancements are observed at an average power of only a few hundred mW delivered to the sample.

AB - In this communication we report initial results using high power pulsed techniques at 94 GHz to perform solid state Dynamic Nuclear Polarisation (DNP) on high volume samples. It is shown that excitation with short pulses, comparable to the pi/2 pulse length, at fast repetition rates can result in higher DNP enhancements relative to continuous wave (cw) excitation for the same average power. Peak enhancements are observed at an average power of only a few hundred mW delivered to the sample.

U2 - 10.1039/c002251a

DO - 10.1039/c002251a

M3 - Article

SN - 1463-9076

VL - 12

SP - 5752

EP - 5756

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 22

ER -

High power pulsed dynamic nuclear polarisation at 94 GHz

Abstract

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