SMALL AND PORTABLE
OR EXTERNAL PREAMP/HV
model 7000 Rainbow Multi-Channel Analyzer is a low cost
portable self contained MCA. It can be used in the field or the
lab for both routine or emergency measurements. It offers all the
usual features of most MCAs, including 1024 channels, dead time
correction, digital gain, expanded scales and built in memory storage.
The Rainbow MCA was designed to combat the problems of 3 piece MCAs
(small MCA, detector and laptop) in several ways. First, the instrument
is ruggedly constructed for use in the field. Second, the battery
life of the Rainbow is 100 hours, enough for several days use. Third,
the unit is self contained, small, and lightweight; it only needs
a detector. And fourth, the cost of the instrument is low.
The Rainbow has all the bells and whistles you would expect from
a current MCA. It has 1024 channels rather that 256. The gain is
digitally adjusted and can be changed from the front panel. The
user friendly interface is through 7 pushbuttons. 5 of these are
used as simple softkeys. The battery life is long and the electronics
uses standard parts for easy maintenance now and in the future.
A scintillation detector can be strapped to the top of the Rainbow
to create a single package for easy carrying, storage or use. The
switches and connectors are all guarded to protect them from damage.
The detector can be either of two types. The detector can have its
own power supply and preamp, or it can rely on the optional removable
high voltage power supply and preamp inside the Rainbow MCA. This
enhances its versatility and helps to keep the costs down because
it may be used with existing equipment, particularly scintillators
that have been used with count rate meters.
The Rainbow MCA is a simple, sturdy instrument that is usable in
many diverse areas. Its portability and compact size is particularly
useful in field work and appreciated in the lab. For most users,
it is the ideal solution for looking at radiation spectra.
Size: 9 1/2
L x 6 W x 1 7/8 H
Painted aluminum case with gasketed keyboard
240 x 64 dot LCD with Contrast Adjustment
7 pushbutton switches protected with silicone rubber gasket
3 D cells will operate instrument with detector for 100 hours. Low
battery indication. Instrument will automatically turn off when
batteries are too low for proper operation.
Adjustments: LLD, ADC Zero, Pole Zero, Conversion Gain, HV (with
Connectors: DB9 Connector for RS-232 Interface, DB9 Connector for
External Detector, BNC Input for use with optional HV/Preamp Board
Gain: Adjustable in 4096 steps
type 14 MHz Clock
time: 10 us to 150 us
rate: >10,000 CPS
& view data, file data, setup
and expanded display
12 ea. 1024 channel spectra
The Rainbow MCA can accept 4 different types of detector arrangements.
1) Output from external preamp/HV 2) Output from external preamp,
amp/hv 3) For scintillators, the optional preamp/HV circuit board
can be internally mounted inside the Rainbow MCA. This provides
adjustable high voltage and preamp gain/shaping. The scintillation
probe then plugs into the BNC on the MCA. 4) The HPI Scintillation
Probe with built in high voltage and preamp.
Range: 0°C to 50°C
-20°C to 60°C
Internal HV/Preamp Board with High voltage power supply and preamp
for scintillation detectors, Scintillation Probe, Scintillation
Probe W/ Preamp and HV, cable, shoulder strap, repair manual
Supplied w/ manual, batteries, Hand Strap