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Riddhiman Sarkar et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 212(2), 460-463 (2011-09-13)
The accurate temperature measurement of solid samples under magic-angle spinning (MAS) is difficult in the cryogenic regime. It has been demonstrated by Thurber et al. (J. Magn. Reson., 196 (2009) 84-87) [10] that the temperature dependent spin-lattice relaxation time constant
M Manohari et al.
Radiation protection dosimetry, 144(1-4), 427-432 (2010-11-04)
A phoswich detector, housed inside a low background steel room, coupled with a state-of-art pulse shape discrimination (PSD) electronics is recently established at Radiological Safety Division of IGCAR for in vivo monitoring of actinides. The various parameters of PSD electronics
Melanie Freed et al.
Medical physics, 36(11), 4944-4956 (2009-12-10)
MANTIS is a Monte Carlo code developed for the detailed simulation of columnar CsI scintillator screens in x-ray imaging systems. Validation of this code is needed to provide a reliable and valuable tool for system optimization and accurate reconstructions for
Fabian D J Brunner et al.
Optics express, 17(23), 20684-20693 (2009-12-10)
We present a versatile terahertz time-domain spectrometer which allows reflection measurements at normal incidence and double pass transmission measurements in a single experimental setup. Two different modes for transmission measurements are demonstrated for precise measurements of transparent high or low
Andrew Kruegel et al.
Rapid communications in mass spectrometry : RCM, 27(7), 763-766 (2013-03-16)
The utility of elemental sulfur as a matrix for inorganic salts such as CsI, AgI, and KI was investigated because the conventional matrices deployed to generate gaseous ions from organic compounds, upon irradiation with a laser beam, are not suitable
G Hajdok et al.
Medical physics, 35(7), 3180-3193 (2008-08-14)
The practice of diagnostic x-ray imaging has been transformed with the emergence of digital detector technology. Although digital systems offer many practical advantages over conventional film-based systems, their spatial resolution performance can be a limitation. The authors present a Monte
N W Marshall
Physics in medicine and biology, 54(9), 2845-2861 (2009-04-23)
This paper presents detective quantum efficiency (DQE) data measured for a range of x-ray beam qualities for two full-field digital mammography (FFDM) systems: a caesium iodide (CsI) detector-based unit and a system designed around an amorphous selenium (a-Se) x-ray detector.
Iain Campuzano et al.
Methods in molecular biology (Clifton, N.J.), 790, 57-70 (2011-09-29)
The introduction of electrospray ionization (ESI) and in particular nano-electrospray (nESI) has enabled the routine mass spectrometric (MS) analysis of large protein complexes in native aqueous buffers. Time-of-flight (ToF) mass spectrometers, in particular the hybrid quadrupole time-of-flight (Q-ToF) instruments, are
Julien Marcoux et al.
Protein science : a publication of the Protein Society, 24(8), 1210-1223 (2015-02-20)
Antibody-drug conjugates (ADCs) are biochemotherapeutics consisting of a cytotoxic chemical drug linked covalently to a monoclonal antibody. Two main classes of ADCs, namely cysteine and lysine conjugates, are currently available on the market or involved in clinical trials. The complex
Aldo Badano et al.
IEEE transactions on medical imaging, 28(5), 696-702 (2009-03-11)
We quantify the variation in resolution due to anisotropy caused by oblique X-ray incidence in indirect flat-panel detectors for computed tomography breast imaging systems. We consider a geometry and detector type utilized in breast computed tomography (CT) systems currently being
S Baccouche et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 70(1), 227-232 (2011-08-20)
Gamma-ray measurements in terrestrial/environmental samples require the use of high efficient detectors because of the low level of the radionuclide activity concentrations in the samples; thus scintillators are suitable for this purpose. Two scintillation detectors were studied in this work;
Ayushi et al.
Journal of chromatographic science, 50(1), 81-83 (2012-02-01)
In the present study an ion chromatographic method based on matrix elimination has been developed for the determination of anionic impurities in high purity cesium iodide crystals. The presence of impurities has a detrimental effect on the characteristics of detectors
D Leone et al.
Radiation protection dosimetry, 144(1-4), 402-406 (2010-12-25)
The in vivo monitoring Lab at KIT uses two phoswich detectors for routine lung counting. A simplified model of one of them has been implemented in the two Monte Carlo codes EGSnrc and MCNPX. The active part of the detector
N W Marshall et al.
Physics in medicine and biology, 56(4), 979-999 (2011-01-21)
This paper describes a digital radiography (DR) quality control protocol for DR detectors from the forthcoming report from the Institute of Physics and Engineering in Medicine (IPEM). The protocol was applied to a group of six identical caesium iodide (CsI)
Diksha Sharma et al.
Medical physics, 40(3), 031907-031907 (2013-03-08)
hybridMANTIS is a Monte Carlo package for modeling indirect x-ray imagers using columnar geometry based on a hybrid concept that maximizes the utilization of available CPU and graphics processing unit processors in a workstation. The authors compare hybridMANTIS x-ray response
C D Arvanitis et al.
Medical physics, 36(1), 116-126 (2009-02-25)
Complementary metal-oxide-semiconductors (CMOS) active pixel sensors can be optically coupled to CsI:Tl phosphors forming a indirect active pixel flat panel imager (APFPI) for high performance medical imaging. The aim of this work is to determine the x-ray imaging capabilities of
Kimberley J Davis et al.
Dalton transactions (Cambridge, England : 2003), 44(7), 3136-3150 (2015-01-13)
As part of a program of preparing metal complexes which exhibit unique affinities towards different DNA structures, we have synthesised the novel Schiff base complex N,N'-bis-4-(hydroxysalicylidine)meso-diphenylethylenediaminenickel(ii) (), via the reaction of meso-1,2-diphenylethylenediamine and 2,4-dihydroxybenzaldehyde. This compound was subsequently reacted with
Melanie Freed et al.
Medical physics, 37(6), 2593-2605 (2010-07-17)
Accurate models of detector blur are crucial for performing meaningful optimizations of three-dimensional (3D) x-ray breast imaging systems as well as for developing reconstruction algorithms that faithfully reproduce the imaged object anatomy. So far, x-ray detector blur has either been
Danilo Donnarumma et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(6), 2260-2267 (2015-02-26)
Bexsero, a new vaccine against Neisseria meningitidis serogroup B (MenB), is composed of 3 main recombinant proteins and an outer membrane vesicle component. One of the main bactericidal antigens, neisseria heparin binding antigen (NHBA), is present as a fusion protein
Jin Hyoung Bai et al.
Radiation protection dosimetry, 146(1-3), 76-79 (2011-05-13)
This paper proposed the two-layer stack scintillator-coupled photodiode detector to improve the measurement accuracy of the gamma-ray scanning. Both MCNPX and DETECT97 code were used to design the detector. The two manufactured two-layer stack gamma detectors were used to measure
Long, J.R. et al.
Journal of the American Chemical Society, 118, 4603-4603 (1996)
Chao-Jen Lai et al.
Medical physics, 42(6), 3063-3075 (2015-07-02)
Cone beam breast computed tomography (breast CT) with true three-dimensional, nearly isotropic spatial resolution has been developed and investigated over the past decade to overcome the problem of lesions overlapping with breast anatomical structures on two-dimensional mammographic images. However, the
Marco Bertolini et al.
Medical physics, 39(5), 2617-2627 (2012-05-09)
The purpose of this study is to compare digital radiography systems using the metric effective detective quantum efficiency (eDQE), which better reflects digital radiography imaging system performance under clinical operating conditions, in comparison with conventional metrics such as modulation transfer
Xiang Shen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 74(1), 224-227 (2009-07-11)
Dy(3+) doped 40GeSe(2)-25Ga(2)Se(3)-35CsI (GGC) glass was synthesized, and optical spectrum, such as infrared transmission and Vis-Nir absorption was measured. Base on the Judd-Ofelt theory, the three Judd-Ofelt parameters Omega(t) (t=2, 4, 6) were calculated and the results were compared with
G Hajdok et al.
Medical physics, 35(7), 3194-3204 (2008-08-14)
A frequency-dependent x-ray Swank factor based on the "x-ray interaction" modulation transfer function and normalized noise power spectrum is determined from a Monte Carlo analysis. This factor was calculated in four converter materials: amorphous silicon (a-Si), amorphous selenium (a-Se), cesium
Mowei Zhou et al.
Analytical chemistry, 84(14), 6016-6023 (2012-07-04)
A custom in-line surface-induced dissociation (SID) device has been incorporated into a commercial ion mobility quadrupole/time-of-flight mass spectrometer in order to provide an alternative and potentially more informative activation method than the commonly used collision-induced dissociation (CID). Complicated sample mixtures
John P Hodkinson et al.
Journal of the American Society for Mass Spectrometry, 20(2), 278-286 (2008-11-11)
The light chain of the major histocompatibility complex class 1 (MHC-1), the protein beta(2)-microglobulin (beta(2)m), has amyloidogenic properties that arise only upon its dissociation from the MHC-1. Here hydrogen/deuterium exchange electrospray ionization mass spectrometry (HDX-ESI-MS) has been used to compare
Mun Peak Nyon et al.
Protein science : a publication of the Protein Society, 24(8), 1301-1312 (2015-05-27)
Native mass spectrometry (MS) methods permit the study of multiple protein species within solution equilibria, whereas ion mobility (IM)-MS can report on conformational behavior of specific states. We used IM-MS to study a conformationally labile protein (α1 -antitrypsin) that undergoes
Khalid Mohammed Khan et al.
Natural product research, 22(14), 1264-1269 (2008-10-22)
In situ generation of hydrogen iodide from cesium iodide/methanesulfonic acid was found to be an attractive reagent combination for the conversion of alkyl, allyl, and benzyl alcohols to their corresponding iodides under mild conditions. The method is compared with that
Madhurima Sharma et al.
European journal of radiology, 84(9), 1820-1827 (2015-06-14)
To assess the role of digital tomosynthesis (DTS) and dual energy subtraction digital radiography (DES-DR) in detection of parenchymal lesions in active pulmonary tuberculosis (TB) and to compare them with digital radiography (DR). This prospective study was approved by our
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