About Gamma Products
Gamma Products has been building low background gas flow proportional
counting systems for over 40 years. The current product line includes:
single detector manual systems, several single detector automatic sample
changer systems, multiple drawer manual systems of up to 16 detectors,
and two configurations of four detector automatic changer systems. In
addition, there are sample changers designed especially for field
deployment both with and without the need for P-10 counting gas.
This broad product line means Gamma Products is uniquely positioned
to sell what your combination of sample count times and sample loads
needs, not just what we have. Long count times or samples that get batch
chemistry push you toward the G540 series multiple drawer manual
systems. Short count times push you toward the automatic sample
changers. Short to moderate count times, along with a heavy sample loads
push you toward the multiple detector changers for the capacity.
ALL Gamma Products a/B systems in the field can be upgraded to the
latest configurations. Some manufactures may leave you hanging with
unsupported systems trying to force you to buy new but Gamma Products
will always update their systems at very considerable savings over
All of Gamma Products laboratory systems come installed with an
on-site warranty. Gamma realizes that we both benefit from getting off
on the right foot.
A time proven reliable sample changer mechanisms is at the heart of
successful field operation. While some manufactures keep changing their
mechanical system Gamma Products just keeps refining their simple but
effective approach and has spent years on those improvements.
The cartridge and carrier system Gamma has used since the beginning
is both reliable and durable. It is also easy to live with in the lab.
The cartridge makes it easy to handle and load sample sets. No more
dropping the poker chips, finding a step stool to reach up and over tall
rails, no dealing with batch plates. A spare cartridge allows you to
easily prepare a second set of samples while another set of samples is
counting. The cartridge also provides a true random access capability
freeing you to randomly mix counting protocols within the set. This is
especially handy for mixing in QA samples and doing automatic multiple
counts within a single sample load.
Gamma' s gas flow detectors are built in house to specifications
optimized for a/B counting. All 2-1/4 inch detectors have dual wires for
uniform electric fields and uniform efficiency over the whole sample.
Our standard detector size is oversize to some other manufactures! our
"2 inch" detectors are actually 2-1/4 inches to minimize the effects of
sample positioning inconsistency
MCA based analysis – Gamma Products pioneered the use of laboratory
MCA's in a/B counting systems. The MCA spectrum makes it easy to
determine exactly where to set your lower level discriminator and where
to set your alpha to beta cross over. You can always see exactly what
tradeoff you are making between background and efficiency and between
efficiency and cross talk. You don't have to fly blind any more or
laboriously do multiple set up tests.
The standard PC controller is low on cost but high on flexibility and
performance. You benefit from all the advances in display, storage,
printing, and networking for your a/B system but at consumer market
prices. The system stores all data in an MS-access database format and
all reporting is done from the database via Crystal Reports templates.
Gamma pioneered the use of "Sample Type" files to define counting
protocols. The sample types let you easily predefine all the parameters
for multiple laboratories counting protocols. Count time, mode,
efficiency, background, weight correction, units and reporting format
are all defined so that the operator potential for mistakes is
minimized. Password options also help you enforce procedures by limiting
who can modify predetermined Types. The Sample information screen is a
simple user interface that lets you define which sample is where in the
cartridge, what sample Type to use and what sequence to count the
samples in. Sample "Status" parameter available to the user for each
sample makes for easy identification of samples as: unknown, background,
process blank, spike, split, or source. This extra information and
controlled counting of these specific samples is a great help in getting
your QA data easily and automatically integrated into the database for
total user flexibility in reporting.
Updates and product enhancements are also easily done with a software