Multiplier Phototubes for the Far Ultraviolet

A new group of extreme solar-blind multiplier phototubes with cleaved lithium fluoride windows consisting of: end-on tubes with 28 mm active diameter cesium iodide (542G-08) and potassium bromide (542J-08) photocathode; 10 mm active diameter cesium iodide (541G-08) and copper iodide (541H-08) photoc...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 11; no. 3; pp. 93 - 99
Main Author Rome, Martin
Format Journal Article
LanguageEnglish
Published IEEE 01.01.1964
Subjects
Anodes
Cathodes
Copper
Dark current
Dispersion
Electrons
Lithium compounds
Photoelectricity
Scattering
Temperature
Online AccessGet full text

Cover

More Information
Summary:A new group of extreme solar-blind multiplier phototubes with cleaved lithium fluoride windows consisting of: end-on tubes with 28 mm active diameter cesium iodide (542G-08) and potassium bromide (542J-08) photocathode; 10 mm active diameter cesium iodide (541G-08) and copper iodide (541H-08) photocathodes; and a side-window tube with a cesium iodide reflective photocathode (641G-08), are described. The spectral responses have characteristic long wavelength cut-offs which serve as an efficient means of rejecting the scattered long-wavelength radiation in dispersive systems. The tubes have anode dark currents at room temperature equivalent to approximately one photoelectron per second. The count rate in the dark of cathode-originating electrons is 10-20 counts per minute. The pulse height distribution from a 541G-08 illuminated with low-level ultraviolet shows an exponential form down to a small fraction (1/25) of the average single electron pulse height. The highly ruggedized tubes are designed for the rigors of space applications.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.1964.4323410