|
|
|
|
Characterization of Composite Electron Sources (Metal - Insulator - Vacuum)
|
|
|
|
|
|
|
|
نویسنده
|
al-qudah a. m. ,alnawasreh s. s. ,madanat m. a. ,trzaska o. ,matykiewicz d. ,alrawshdeh s. s. ,hagmann m. j. ,mousa m. s.
|
|
منبع
|
jordan journal of physics - 2018 - دوره : 11 - شماره : 1 - صفحه:59 -68
|
|
چکیده
|
Field electron emission measurements were performed on composite tips (insulator- tungsten) that were prepared by electrochemical etching in naoh solution. the current-voltage (i-v) characteristics and field electron emission images were recorded under uhv conditions with a base pressure of <10-9 mbar. next, the tips were coated with several different types of dielectric layers. various techniques were employed to measure the characteristics of these types of emitters and to evaluate the effects of different types of dielectric coatings on the performance and reliability of such an electron source.
|
|
کلیدواژه
|
Field electron emitter ,Dielectric layers ,Composite tip ,Field electron microscope
|
|
آدرس
|
mu’tah university, department of physics, Jordan, mu’tah university, department of physics, Jordan, mu’tah university, department of physics, Jordan, wrocław university of technology, laboratory of plastics, Poland, poznan university of technology, institute of materials technology, Poland, mu’tah university, department of mechanical engineering, Jordan, university of utah, department of electrical and computer engineering, usa, mu’tah university, department of physics, Jordan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|