Nuclear Radiation...
Detect it...measure it...analyze it... with R C A P H O T O M U L T I P L I E R S Recent RCA advances in multiplier phototube develop ment have made detection, observation and measure ment of fast nuclear phenomena more precise than ever. Two extremely-fast response types, ideally suited to 'adiation measurements, are the RCA-7746 and 7850. PRINCIPAL CHARACTERISTICS AND CAPABILITIES:
Type
Wave Length Number of of Stages Maximum Spectral Response
Radiant Luminous Sensitivity Sensitivity* (at 4400A°) in in amps/watt amps/lumen
Greatest AnodeDelay Current Pulse between Ampli fication RiseinTime AnodePulses Factor seconds in seconds
RCA7746
10
4400A0
960,000
1,200
17 χ 106 2 χ 10-9
3x10-10
RCA7850
12
4400A°
4,800,000
6,000
8.6 χ 107 2 χ 10-9
3 χ 10-10
O n the basis of a tungsten-filament light source having a lime-glass envelope jperatedat 2870°K.
RECOMMENDED APPLICATIONS:
• Coincidence and general scintillation counting · Nuclear "time of flight" measurements · Detection and measurement of Cerenkov radiation · Low-level radiation studies These are but two of 34 different RCA multiplier phototubes...one exactly right for your application. Features of RCA multiplier phototubes include uniform photocathodes, high sensitivity, high gain, good pulseheight resolution combined with high speed and low dark-current at room temperatures. GET ALL THE FACTS in this 32-page catalog on photo and image tubes. Contains characteristics and capabilities of 34 multiplier phototubes—33 photo diodes—7 image converter tubes...plus quickselection charts and spectral sensitivity and energy emission curves. Available from your nearby au thorized RCA Distributor... or from Commercial Engineering, Sec. L-80-U, RCA, Harrison, N.J. RCA ELECTRONIC COMPONENTS AND DEVICES. HARRISON, N.J.
The Most Trusted Name in Electronics AVAILABLE THROUGH YOUR AUTHORIZED RCA INDUSTRIAL TUBE DISTRIBUTOR R NAME AND ADDRESS OF YOUR LOCAL DISTRIBUTOR WRITE OR CALL YOUR NEAREST RCA DISTRIBUTOR PRODUCTS SALES O F F I C E - N E W YORK, N. Y.: 36 W . h St., MUrray Hill 9-7200; NEEDHAM HEIGHTS 94, MASS.: 80 " A " St., Hillcrest 4-8480; W A S H I N G T O N 6, D. C : 1725 " K " St., S.W., FEderal 7-8500; ATLANTA, ,.: 134 Peachtree St., N.W., JAckson 4-7703; CLEVELAND, O H I O : 1621 Euclid Ave., CHerry 1-3450; C H I C A G O , ILL.: Merchandise Mart, 467-5900; DALLAS 7, TEXAS: i1 Carpenter Freeway, MEIrose 1-3050; KANSAS CITY 14, M O . : 7711 State Line, EMerson 1-6462; LOS ANGELES 22, C A L . : 6801 Ε. Washington Blvd., RAymond 3-8361.
