RMD RadCam

RMD RadCam
TM
TM
Spec troscopic Gamma-Ray Imaging System
APPLICATIONS
• Nuclear Power
• Special Nuclear Materials, Spent Fuel Rods
• Homeland Security
• Site Assessment
• Decommissioning, Decontamination
Image Gamma Radiation
Obtain Spectra
Set Energy Gates and Obtain Images
The RMD RadCamTM makes images of gamma
radiation superimposed over a black and white
video image of the same field of view. The
intensity of the gamma radiation is presented
in color with progressively brighter colors
corresponding to higher gamma activity. In
addition, spectra showing the isotopes present
are shown for user-selected areas of the image.
FEATURES & BENEFITS
Detects gamma radiation. The pin-hole collimator, the codedaperture collimator, and user-set data acquisition time give the
system a wide range of sensitivity to gamma radiation.
The RMD RadCam shows the location of radioactivity and a spectrum
of the detected gamma photons. This spectroscopic feature helps
the user identify the presence of gamma-emitting isotopes such as
241
Am, 57Co, 99m Tc, 235U, 239Pu, 131I, 137Cs and 60Co.
The mask, anti-mask position of the coded-aperture collimator
enhances nuclear image quality by reducing background gamma
events that do not correlate with gamma sources located in the
nuclear camera’s gamma-radiation field-of-view.
The system is constructed for field use and includes a rugged
laptop computer.
•
•
•
Assess sites remotely
Reveal unknown gamma activity
Localize hot spots of gamma activity
•
•
•
Determine, by their spectra,
isotopes that may be absent
or present
Reduce exposure to employees
Monitor distribution of activities
The main window (above) of the RMD RadCam™ Imaging
System shows two 57Co gamma ray sources, each
approximately 4 x 108 Bq activity. Sources were apparent in
2 minutes with the camera at 40 meters from the building.
RMD RadCam TM
Gamma Camera
shown with coded-aperture
collimator
Pin-Hole Collimator
Spectrum from RadCam™ system shows the 662 keV
photopeak from 137Cs source located in center of video image.
Image acquisition time was 60 seconds, coded-aperture
double routine, and 2 meter distance to the 19 MBq (514 μCi)
activity 137Cs source. Nuclear image has a signal-to-noise
ratio well over 10:1 (average of 132 counts/pixel in the image
peak, average of 5 counts/pixel outside the image peak).
Display an energy spectrum from an area-of-interest in th
Display an entire image based on spectral region-of-intere
RMD RadCam TM
RMD RadCam TM
Performance
Camera
Laptop
Computer
Standard System
µ
µ
TM
RMD RadCamTM
Gamma Energy Range
Less than 30 keV to greater than 1.
4
137
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STANDARD SYSTEM
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•
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Internet: www.rmdinc.com
info@rmdinc.com
e-mail pwaer@rmdinc.com
RMD Instruments,
LLC LLC
e-mail pwaer@rmdin
RMDEmail:
Instruments,
telephone
617
668
6900
617 926
9743
Hunt
Street
Watertown
Massachusetts
02472
USA
doc: RadCam_2010_062 44
©Copyright
June
2010,
RMD
Instruments
Corp.
telephone 617 668facsimile
6900 facsimile
617
926
44 Hunt Street Watertown Massachusetts 02472 USA
TM