Years before they greeted Columbus, the Taino taÃ­no explored and settled The. (Caribbean Guilbert). Gates their homeland is rich with cave, drawings which testify to the hallucinogens that fueled otherworldly, visions as shown here in a leader sniffs cohoba. powder
To Control Ionization. 1  Ionization Voltage Typically, 70eV electrons from the filament are used for EI. 2  Emission Current The number of ions produced in unit time is proportional to the current of emitted electrons, i.e., emission current. 3  Ion Source Temperature The ion source is usually used at about 200 oC.
If eo represents the permittivity of free space (that is, 8.85 x 10-12 F/m) and e represents the permittivity of the substance in question (also specified in farads per meter), then the relative permittivity, also called the dielectric constant er, is given by: