RESPONSE OF END-WINDOW PHOTOMULTIPLIER TUBES AS A FUNCTION OF TEMPERATURE

Journal Article · Wed Jun 01 04:00:00 EDT 1960 · IRE Trans. Nuclear Sci.

DOI:https://doi.org/10.1109/TNS2.1960.4315742· OSTI ID:4133509

Murray, R B; Manning, J J

A study was made of the response of commercial endwindow photomultipliers to light of various wavelengths, in the 4000 to 7000 A interval, as a function of temperature. All tubes studied were of nominal 2-in. diameter, and included various standard tubes made by DuMont and RCA, low-temperature modifications of standard tubes, and the recently developed multialkali- photocathode tubes. Most of the experiments were performed with the tube operating as a multiplier. In a series of auxiliary experiments, the dynode string was shorted to the anode so that the effect of cooling the cathode could be studied separately. In a typical tube the response to blue light increased somewhat with decreasing temperature; whereas, the response to red light decreased rapidly. These effects were associated with changes in the photocathode spectral sensitivity. At low temperatures ( approximately -100 deg C or below) the response fell sharply for all wavelengths, an effect attributed to the increased resistivity of the semiconducting photocathode. This effect was not observed in tubes that had the photocathode covered with a semitransparent metallic backing. The temperature dependence of spectral sensitivity in multialkali-photocathodes (RCA C-7261) was significantly different from that of a cesium-antimony photocathode. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-025701
• OSTI ID: 4133509
• Journal Information: IRE Trans. Nuclear Sci., Journal Name: IRE Trans. Nuclear Sci. Vol. Vol: NS-7, No. 2-3
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKALI METALS
ANODES
ANTIMONY
CATHODES
CESIUM
COOLING
EFFICIENCY
ELECTRODES
ENGINEERING AND EQUIPMENT
FREQUENCY
LIGHT
LOW TEMPERATURE
PHOTOMULTIPLIERS
SEMICONDUCTORS
SENSITIVITY
SPECTRA
STANDARDS
TEMPERATURE
WINDOWS