X-Ray Techniques
This is created when an incident x-ray photon strikes an inner molecular orbital.
What is an electron hole?
The magnitude of an energy split is proportional to this.
What is the strength of the magnetic field?
The larges peak in a mass spectrum.
What is the base peak?
A mass spec spectrum is composed of this.
What is a range of mass-to-charge (m/z) ratios of ions generated?
Identify this diagram.
What is an FTIR?
A portable x-ray device uses this as it's source.
What are radioisotopes?
This is what is measured in NMR.
What is the reemitted energy after excited nuclei relax?
Of the two types of sources, this one produces fewer product ions.
What is a soft ion source?
Type of soft ionization where a reagent gas is ionized by electrons.
What is chemical ionization?
Identify this.
What is Electrospray Ionization?
This type of X-Ray optics uses reflection.
What are Wolter optics?
The exponential decay of the sine wave signal in FT-NMR induced by a single RF excitation pulse in the receiver coil.
What is Free Induction Decay (FID)?
Only a small fraction of ionized analyte make it into here.
What is the mass analyzer?
Soft ionization method that used to volatilize high-boiling materials.
What is MALDI?
This is applied to go from the blue arrows to the red arrows.
What is an RF pulse?
This type of diffraction states that when the x-ray is incident onto a crystal surface, its angle of incidence will reflect back with a same angle of scattering.
What is Bragg diffraction?
These are two ways to reduce noise in an NMR signal.
What is shimming and including deuterium?
Decreasing this decreases the number of molecules and ions available for collision.
What is the pressure of the system?
Mass analyzer comprised of 4 rods connected electrically with a combination of a DC and radiofrequency (RF) AC voltage applied between them.
This is a type of AAS.
What is cold vapor AAS?
In this type of X-ray fluorescence, an X-ray beam hits a sample at a shallow angle, is highly sensitive, and used to detect trace amounts of elements in liquids, solids, and on surfaces.
What is Total-Reflection X-ray Fluorescence (TRXF)?
In an MRI, the rate of relaxation is associated with this.
What is the depth of the tissue?
Detector that uses continuous, curved surface with semiconducting material to generate secondary electrons.
What is a continuous dynode detector?
In TOF analyzers, one should expect improved resolution as these two things increases.
What is the drift path length and time in tube?
Identify this diagram.
What is a Faraday cup?