APPLIED MAGNETIC RESONANCE 为磁共振在物理、化学、生物学、医学、地球化学、生态学、工程及相关领域的应用提供了一个国际论坛。内容包括强调新应用和新实验方法的文章。其他功能包括书评和致编辑的信。

Applied Magnetic Resonance is an international forum dedicated to the applications of magnetic resonance in the fields of physics, chemistry, biology, medicine, geochemistry, ecology, engineering, and related areas. The journal features articles that emphasize new applications and experimental methods. Other components include book reviews and letters to the editor.

《Applied Magnetic Resonance》是一个国际论坛，专注于磁共振在物理、化学、生物学、医学、地球化学、生态学、工程及相关领域的应用。期刊内容包括强调新应用和新实验方法的研究文章。此外，还包括书评和致编辑的信件。

Applied Magnetic Resonance

A numerical model of a female body is developed to study the effects of different body types with different coil drive methods on radio-frequency magnetic (B1) field distribution, specific energy absorption rate (SAR), and intrinsic signal-to-noise ratio (ISNR) for a body-size birdcage coil at 64 and 128 MHz. The coil is loaded with either a larger, more muscular male body model (subject 1) or a newly developed female body model (subject 2), and driven with two-port (quadrature), four-port, or many (ideal) sources. Loading the coil with subject 1 results in significantly less homogeneous B1 field, higher SAR, and lower ISNR than those for subject 2 at both frequencies. This dependence of MR performance and safety measures on body type indicates a need for a variety of numerical models representative of a diverse population for future calculations. The different drive methods result in similar B1 field patterns, SAR, and ISNR in all cases.

W Liu

C M Collins

M B Smith

Applied magnetic resonance

Appl Magn Reson

Calculations of B1 Distribution, Specific Energy Absorption Rate, and Intrinsic Signal-to-Noise Ratio for a Body-Size Birdcage Coil Loaded with Different Human Subjects at 64 and 128 MHz.

64和128 MHz下加载不同人体受试者的体尺寸鸟笼线圈的B1分布、比吸收率和固有信噪比计算。

Abstract Compound I has been postulated to be the reactive species in many heme catalysts, which performs different chemistry and shows different properties in different enzymes. The aim of this review is to present a comprehensive model which has been successfully used to interpret the EPR spectra of various Compound I species. The theoretical approach established by seminal articles will be revisited and its ability to explain experimental results will be illustrated by simulating selected spectra from the literature. Compound I stores two oxidizing equivalents, one in the paramagnetic iron(IV)-oxo moiety, and another one as a free radical on the porphyrin ligand or an amino acid in the protein. To describe the interactions of the two paramagnetic species with each other and with their local environment, the spin Hamiltonian of the system is built step by step. The Fe(IV) center is described using a two-hole model. The effect of the crystal-field and spin–orbit coupling on the energy levels is calculated with this simple approach, which allows to obtain spin Hamiltonian parameters like zero-field splitting and effective g -values for the iron. The magnetic interaction between the Fe(IV) center and the free radical is considered and allowed to vary in sign (ferromagnetic to antiferromagnetic) and magnitude to interpret the EPR of Compound I species in different systems. Since orbital overlap is crucial for exchange interaction, special emphasis is made in obtaining the orientation of Fe semi-occupied orbitals by extending the counter-rotation concept, which relates the directions of magnetic, electronic, and molecular axes.

Maruan Bracci

Sabine Van Doorslaer

Inés García-Rubio

EPR of Compound I: An Illustrated Revision of the Theoretical Model

化合物I的电子顺磁共振：理论模型的图解修订

Anatoly F. Vanin

Principal Role of EPR Method in Discovery, Identification and Study of Dinitrosyl Iron Complexes in Living Organisms (Review)

EPR方法在活体生物中发现、鉴定和研究二硝酰基铁复合物中的主要作用（综述）

Bruno H. Basso

Rodrigo H. S. Garcia

Milton A. Cardoso

Fábio R. Simões

Debora J. Moras

Esther R. D. Lima

Luiz A. Colnago

Lúcio L. Barbosa

Using the Time-Domain Nuclear Magnetic Resonance (TD-NMR) for Quantification of the Diesel Adulteration with Ethanol

使用时域核磁共振（TD-NMR）定量分析乙醇掺杂柴油

G. V. Mamin

F. F. Murzakhanov

I. N. Gracheva

M. R. Gafurov

V. A. Soltamov

Influence of Second-Order Effects due to Hyperfine Interaction on the Magnitude of the Larmor Frequency 14N

超精细相互作用引起的二阶效应对14N拉莫频率大小的影响

Victoria N. Syryamina

Olga Yu. Rogozhnikova

Victor M. Tormyshev

Sergei A. Dzuba

Two-Pulse Electron Spin Echo of Biradicals: Dependence on Pulse Turning Angles

双自由基的双脉冲电子自旋回波：脉冲转向角的依赖性

Abstract The quest to enhance the sensitivity of electron spin resonance (ESR) is an ongoing challenge. One potential strategy involves increasing the frequency, for instance, moving from Q-band (approximately 35 GHz) to W-band (approximately 94 GHz). However, this shift typically results in higher transmission and switching losses, as well as increased noise in signal amplifiers. In this work, we address these shortcomings by employing a W-band probehead integrated with a cryogenic low-noise amplifier (LNA) and a microresonator. This configuration allows us to position the LNA close to the resonator, thereby amplifying the acquired ESR signal with minimal losses. Furthermore, when operated at cryogenic temperatures, the LNA exhibits unparalleled noise levels that are significantly lower than those of conventional room temperature LNAs. We detail the novel probehead design and provide some experimental results at room temperature as well as cryogenic temperatures for representative paramagnetic samples. We find, for example, that spin sensitivity of ~ 3 × 10 5 spins/√Hz is achieved for a sample of phosphorus doped 28 Si, even for sub-optimal sample geometry with potential improvement to &lt; 10 3 spins/√Hz in more optimal scenarios.

Moamen Jbara

Oleg Zgadzai

Wolfgang Harneit

Aharon Blank

Cryogenic W-band Electron Spin Resonance Probehead with an Integral Cryogenic Low Noise Amplifier

带有集成低温低噪声放大器的低温W波段电子自旋共振探头

Abbreviation	Appl. Magn. Reson.
Journal Impact	1.25
Quartiles(Global)	SPECTROSCOPY(Q3)

ISSN	0937-9347, 1613-7507
h-index	49

Publication Information	Publisher: Springer-Verlag Wien，Publishing cycle: Bimonthly，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 1990，Proportion of original research papers: 94.92%，Self Citation Rate:9.10%， Gold OA Rate: 21.97%
Average review cycle	网友分享经验：平均3.0个月
Average recruitment ratio	网友分享经验：约80%

Applied Magnetic Resonance

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Calculations of B1 Distribution, Specific Energy Absorption Rate, and Intrinsic Signal-to-Noise Ratio for a Body-Size Birdcage Coil Loaded with Different Human Subjects at 64 and 128 MHz.

EPR of Compound I: An Illustrated Revision of the Theoretical Model

Principal Role of EPR Method in Discovery, Identification and Study of Dinitrosyl Iron Complexes in Living Organisms (Review)

Using the Time-Domain Nuclear Magnetic Resonance (TD-NMR) for Quantification of the Diesel Adulteration with Ethanol

Influence of Second-Order Effects due to Hyperfine Interaction on the Magnitude of the Larmor Frequency 14N

Principal Role of EPR Method in Discovery, Identification and Study of Dinitrosyl Iron Complexes in Living Organisms (Review)

Two-Pulse Electron Spin Echo of Biradicals: Dependence on Pulse Turning Angles

Using the Time-Domain Nuclear Magnetic Resonance (TD-NMR) for Quantification of the Diesel Adulteration with Ethanol

Influence of Second-Order Effects due to Hyperfine Interaction on the Magnitude of the Larmor Frequency 14N

Cryogenic W-band Electron Spin Resonance Probehead with an Integral Cryogenic Low Noise Amplifier