Environment assisted electron capture
نویسندگان
چکیده
منابع مشابه
Electron capture, collision-induced, and electron capture-collision induced dissociation in Q-TOF.
Recently, we demonstrated that a radio-frequency-free electromagnetostatic (rf-free EMS) cell could be retrofitted into a triple quad mass spectrometer to allow electron-capture dissociation (ECD) without the aid of cooling gas or phase-specific electron injection into the cell (Voinov et al., Rapid Commun Mass Spectrom 22, 3087-3088, 2008; Voinov et al., Anal Chem 81, 1238-1243, 2009). Subsequ...
متن کاملShape Capture Assisted by Traditional Tools
We present new techniques for capturing the shape of physical objects using simple tools. From a set of caliper distance measurements between object points, we reconstruct a three dimensional structure. We show that we can refine the model using planar contours obtained with a gage that are placed in three dimensions using the caliper measurements. We demonstrate that the model we construct can...
متن کاملEnvironment-assisted precision measurement.
We describe a method to enhance the sensitivity of precision measurements that takes advantage of the environment of a quantum sensor to amplify the response of the sensor to weak external perturbations. An individual qubit is used to sense the dynamics of surrounding ancillary qubits, which are in turn affected by the external field to be measured. The resulting sensitivity enhancement is dete...
متن کاملEnvironment-Assisted Quantum Transport
Transport phenomena at the nanoscale are of interest due to the presence of both quantum and classical behavior. In this work, we demonstrate that quantum transport efficiency can be enhanced by a dynamical interplay of the system Hamiltonian with pure dephasing induced by a fluctuating environment. This is in contrast to fully coherent hopping that leads to localization in disordered systems, ...
متن کاملElectron Capture Detector with Non-Radioactive Electron Source
Gas chromatographs equipped with electron capture detectors (ECD) are widely used for the analysis of electron affine substances. Achieving limits of detection in the low pptv-range, electron capture detectors are the most sensitive detectors available for such compounds. Based on their operating principle, they require free electrons at atmospheric pressure, which are usually generated by usin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics B: Atomic, Molecular and Optical Physics
سال: 2009
ISSN: 0953-4075,1361-6455
DOI: 10.1088/0953-4075/42/23/231001