NDLI: Low-voltage mercury-alkali metal arc

Please wait, while we are loading the content...

Low-voltage mercury-alkali metal arc

Content Provider	IEEE Xplore Digital Library
Author	Reiling, G.H.
Copyright Year	1955
Abstract	Measurements of the arc voltage and electron temperature were made on low-pressure arcs utilizing a mercury-pool cathode containing various concentrations of alkali metals. The arc-burning voltage was substantially lower than the pure mercury arc and the minimum arc voltage depended on the concentration of the alkali metal and ambient tube temperature. The measurements suggest that there are three processes which collectively are responsible for the arc behavior. These are a lower anode work function, a Penning two-stage ionization process of alkali metal atoms by mercury metastables and an improved electron emission by reliable anchoring of the cathode spot. With the addition of small amounts of alkali metal the cathode spot emission zone was stable on a molybdenum anchor at currents as high as 200 a. The cathode fall potential was the order of 4 v. It is shown that the voltage reduction is mainly in the cathode fall region and that it is lower for rubidium than cesium, potassium or sodium in the preceding order.
Starting Page	271
Ending Page	280
Page Count	10
File Size	1212940
File Format	PDF
ISSN	00962430
Volume Number	9
Issue Number	3
Language	English
Publisher Date	1962-05-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in