Princeton 15Vdc, R928 User Manual

15 Discovery Way, Acton, MA 01720

Phone: [phone], Fax: [phone]

Web Site:

www.piacton.com

Operating Instructions

for

PMT Tube

P2

Ver 2.0

Extended Red, High Sensitivity, Multialkali Photocathode

28mm (1-1/8 Inch) Diameter, 9-Stage, Side-On

FEATURES

Wide Spectral Response

R928 ........................................................

R955 ........................................................

High Cathode Sensitivity

Luminous ......................................................

Radiant at 400nm .............................................

High Anode Sensitivity (at 1000V)

Luminous ........................................................

Radiant at 400nm .....................................

Low Drift and Hysteresis

The R928 and R955 feature extremely high quantum efficiency,
high current amplification, good S/N ratio and wide spectral re­sponse from UV to near infrared. The R928 employs a UV glass
envelope and the R955 has a fused silica envelope for UV sen­sitivity extension.
The R928 and R955 are well suited for use in broad-band spec­trophotometers, atomic absorption spectrophotometers, emis­sion spectrophotometers and other precision photometric in­struments.

185 to 900 nm
160 to 900 nm

250 A/lm

74mA/W

2500A/lm

7.4 10

5

A/W

PHOTOMULTlPLlER TUBES

R928, R955

GENERAL

Parameter Description/Value Unit

Spectral Response

R928

R955
Wavelength of Maximum Response
Photocathode

MateriaI

Minimum Effective Area
Window Material

R928

R955
Dynode

Secondary Emitting Surface

Structure

Number of Stages
Direct Interelectrode Capacitances

Anode to Last Dynode

Anode to All Other Electrodes
Base

Weight
SuitabIe Socket

SuitabIe Socket Assembly

185 to 900 nm
160 to 900 nm

400

Multialkali

8 24

UV glass

Fused silica

Multialkali

Circular-cage

9

Approx. 4 pF
Approx. 6 pF

11-pin base

JEDEC No. B11-88

Approx. 45

E678–11A (option)

E717–21 (option)

nm

mm

g

Figure 1: Typical Spectral Response

TPMSB0001EB

100

R955

10

1

QUANTUM EFFICIENCY (%)

0.1

CATHODE RADIANT SENSITIVITY (mA/W)

0.01
100 200 300

R928

QUANTUM EFFICIENCY

400 500 600 700

WAVELENGTH (nm)

CATHODE
RADIANT
SENSITIVITY

900

800

1000

Subject to local technical requirements and regulat ions, availability of products included in this promotional material may va r y. Please consult with our sales office.
lnformation furnished by HAMA M ATSU is believed to be reliabIe. However, no respon sibility is assumed for possibIe inaccuracies or ommissions. Specifications are

subject to change without notice. No patent right are granted to any of the circuits described herein.

1997 Hamamatsu Photonics K.K.

©