TY  - JOUR
AU  - Bauer, C.
AU  - Raich, H.
AU  - Jeschke, G.
AU  - Blümler, P.
TI  - Design of a permanent magnet with a mechanical sweep suitable for variable-temperature continuous-wave and pulsed EPR spectroscopy
JO  - Journal of magnetic resonance
VL  - 198
SN  - 1090-7807
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - PreJuSER-545
SP  - 222 - 227
PY  - 2009
N1  - Record converted from VDB: 12.11.2012
AB  - A magnetic system is introduced which consists of three nested rings of permanent magnets of a Halbach dipolar layout and is capable for EPR spectroscopy. Two of the rings can be rotated independently to adjust the magnetic flux in the center and even allow for mechanical field sweeps. The presented prototype achieves a magnetic flux range of 0.0282-0.3013T with a minimal sweep of 0.15mT and homogeneity of about 10(-3). First applications with CW and pulsed Mims ENDOR as well as ESEEM experiments on a sample of a glycine single crystal doped with 1% copper nitrate demonstrate that flux range, sweep accuracy and homogeneity of this prototype is sufficient for EPR experiments on most solid samples. Together with a recently improved design magnets can be build which could serve as compact and easily transportable replacement of standard electromagnets with negligible consumption of power or coolants.
KW  - Electromagnetic Fields
KW  - Electron Spin Resonance Spectroscopy: instrumentation
KW  - Equipment Design
KW  - Glycine: chemistry
KW  - Magnetics
KW  - Microwaves
KW  - Temperature
KW  - Glycine (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:19299174
UR  - <Go to ISI:>//WOS:000266387200013
DO  - DOI:10.1016/j.jmr.2009.02.010
UR  - https://juser.fz-juelich.de/record/545
ER  -