R2486 Datasheet, PDF (1/8 Pages) Hamamatsu Corporation – POSITION-SENSITIVE PHOTOMULTIPLIER TUBES WITH CROSSED WIRE ANODES

POSITION-SENSITIVE
PHOTOMULTIPLIER TUBES
WITH CROSSED WIRE ANODES
R2486 SERIES
3˝ Diameter Circular Envelope Position-Sensitive PMT with Crossed Wire Anodes
For Nuclear Medical Instruments, High Energy Physics Experiments
Introduction
The R2486 series have a bialkali photocathode, a 12-stage
coarse mesh dynode structure, and multiple anode wires
crossing one another in the X and Y directions. Output sig-
nals from each anode can be divided through external resis-
tive chains and derived from X and Y electrodes as the posi-
tion signals. This crossed-wire anode construction features
high spatial resolution, high position linearity, and easy sig-
nal processing for scintillation imaging. A 5-inch diameter
type R3292 is also available.
The R2486 series enables the acquisition of
2-dimensional information with a single
tube.
Until now, the task of obtaining 2-dimensional information
required the use of an arrangement of multiple PMTs. This
approach was costly and required complex hardware. The
R2486 series were developed as position-sensitive PMTs to
enable this information acquisition with a single tube.
Applications
GCompact Gamma Camera
GAnimal PET
GRadiation Imaging
Voltage divider circuit and resistive chains
for signal processing simplify connection to
measuring instruments.
The following versions are available to handle various appli-
cations.
1. R2486: Flying lead type (Fig. 9)
2. R2486-01: Provided with high-voltage divider circuit; enables direct
reading of signals from each anode through an IC socket.
(Fig. 10)
3. R2486-02: Provided with high-voltage divider circuit and resistive
chains for signal processing, simplifying connection to
external devices. (Fig. 11)
4. R2486-03: Variant type of R2486-02 having HA coating and µ-metal
shielding. (Fig. 12)
5. R2486-04: Variant type of R2486-03 with the aluminum case. (Fig.13)
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Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.