St. Petersburg Polytechnic University Journal: Physics and Mathematics Научно-технические ведомости СПбГПУ. Физико-математические науки 2304-9782, 2618-8686, 2405-7223 16 Cold field emitters for electron devices operating in technical vacuum Холодные полевые эмиттеры для электронных устройств, работающих в техническом вакууме Sominski Gennadiy sominski@rphf.spbstu.ru Sezonov Vyacheslav sezonovve@mail.ru 0000-0001-5219-6744 Taradaev Evgeniy Tumareva Tatiana tumareva@rphf.spbstu.ru Givargizov Evgeny egivargiz@ns.crys.ras.ru Stepanova Alla cvdlab@ns.crys.ras.ru Санкт-Петербургский политехнический университет Петра Великого Peter the Great St. Petersburg Polytechnic University 10 12 2013 4 182 2 136 141

The paper describes the field emitters of a new type: multi-tip cathodes with special protective coatings and layered cathodes prepared from the nano-layers of the materials with different work function values.The article presents data on the technology of emitter creation and their operation at technical vacuum conditions.

 field emitter high emission currents high durability in technical vacuum experiment numerical computation