Sy
clone Portable Gamma-Ray Spectrometer, Revision 10 1.0 GENERAL SYSTEM DESCRIPTION
Ra
dComm – Proprietary Page 5 Revision Date: March 3, 2016
The SEARCH function displays the current DOSE RATE (in selectable units and quantities)
as well as ACCUMULATED DOSE from the time the function was enabled. The dose meter
is used to determine the relative hazard level and to assess handling requirements of a
radioactive material. Dose Search of an area can also be carried out in SEARCH.
b) IDENTIFY – (Nuclide Identification)
In this function, the Syclone accumulates spectral data from a sample and analyses the
spectrum in terms of emitted energy level and net count contribution. The nuclides
responsible for producing the spectrum are identified by comparison to a nuclide library. This
essential information can then be used to determine risk assessment.
1.5 SYSTEM FEATURES
a) INSTRUMENT BODY - The
instrument body consists of two primary parts, the lower case
and top panel. The combination of the two parts provides a high degree of system strength,
suitable for field operations where mechanical abuse may be unavoidable.
b) DETECTOR –
i. Crystal Detector - The 1.5” (38mm) x 2” (51mm) Thallium doped sodium-iodide (NaI)
crystal is specially designed for rugged environments.
ii. GM – the rugged Geiger-Muller tube is mounted just behind the instrument front face
and is used to extend the Dose Rate range to 10 R/hr (100 mSv/hr) for special
applications.
iii. Neutron Detector – He3 or CLYC(Cs
2
LiYCl
6
) technology, please consult factory.
c) EFFECTIVE CENTER – The optimum sensing area for the Sodium Iodide (NaI) detector is
the area represented by the central mark located on the front of the Syclone case.
d) HANDLE – The handle was carefully designed to allow for a variety of grips, it also gives the
unit a measure of strength and provides a comfortable balance which affords the operator
hours of stress free usage.
e) JOYSTICK - The Syclone has only one operating control - the four position joystick on the
handle. All system functions are controlled by the JOYSTICK that permits very easy
instrument functions (EVEN WHILE WEARING GLOVES IN A BIOHAZARD SUIT). The
JOYSTICK is a specially designed switch with four actions – UP, DOWN, LEFT, and RIGHT.
The JOYSTICK and use of menu driven functions makes the Syclone very easy to operate
and avoids the necessity of “memorizing” complex sequences of action.
Note: A joystick Navigation Menu is available at the bottom of each screen in Automatic
Mode (see Appendix D
).
f)
DISPLAY - A LCD is used for the Syclone to permit a full range of alphanumeric and graphic
display capabilities. This LCD gives excellent contrast in high light conditions.
g) REAR CONNECTIONS – The Syclone has a mini-USB connector mounted on the rear of the
unit.
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