RS 500 Advanced Digital Gamma Ray Spectrometer


RS 500

 

RS-500 (Advanced Digital Gamma-Ray Spectrometer)

For Airborne Geophysical Exploration and Geological Mapping

Superior Technology

The RS-500 supercedes all other airborne system due to the fact it utilizes advanced, leading edge DSP / FPGA * technologies, making all current available systems obsolete by a significant factor, thus placing the RS-500 in a class of it's own.

The RS-500 is a fully integrated system that includes an individual Advanced Digital Spectrometer (ADS) for each crystal within the detector box.   The ADS is a high resolution (1024 channel) gamma spectrometer that makes the measurement of both the naturally occurring and man made radioactive elements as transparent and automatic an operation as possible, with minimal interaction from the user.

Easy to use, operator friendly

The user can monitor the data and system performance with their own data acquisition or on a computer with the RadAssist software. The RadAssist software provides a variety of displays for system set-up and performance monitoring.

A high level of self-diagnostics and performance verification routines are implemented with automatic error notification. With the multiple data verification methods employed, the user is assured that the resulting maps and products they produce for their customers are of high quality and accuracy.

Technical Specifications

Spectrometer

 

 

Detectors

 

Channels

1024

 

RSX-4

4  x 4L NaI(Tl)

Differential nonlinearity

<0.2% over top 99.5%

 

RSX-5

4+1 x 4L NaI(Tl)

Integral nonlinearity

<0.01% over top 99.5%

 

Energy resolution

<8.5%(4)

Zero dead time(1)

 

 

 

Baseline restoration

Digital (IPBR)(2)

 

Power

 

Pulse shaping

Digital (AOPS)(3)

 

RSX-4

9-40 VDC, 50 W

Pile-up rejection

Digital (<40nS)

 

RSX-5

9-40 VDC, 55 W

Pile-up contamination

<1% @ 250kcps

 

 

 

 

 

 

Weight

 

Sample rate

 0.1-10 sec-1

 

RSX-4

91 kg  (200 lb)

Timing

Internal/External

 

RSX-5

114 kg (250 lb)

Gain stabilization

Automatic multi-peak

 

 

 

I/O

Ethernet

 

Size

 

 

RS-232 19200-115200 bit/s

 

RSX-4

690 mm x 573mm x 177mm(5)

 

USB memory stick

 

 

(28.80in x 22.56in x 6.97in)

 

 

 

RSX-5

690 mm x 573mm x 288mm(5)

Outputs

 

 

 

(28.80in x 22.56in x 11.32in)

Composite spectrum

 

 

 

Individual spectra

 

Environmental

 

State of health

 

Operating Temp.

-30°C to +45°C

Inputs

 

 

 

 

Detector configuration

 

 

 

Operational parameters

 

 

 

Trigger signal

 

 

 

Calibration data

 

 

 

 

Notes

  1. The RS-500 has no dead time in a traditional sense. A live time clock will be adjusted for loss of system measured pile-up rejections to give an apparent dead time to ensure the absolute count rate is correct.
  2. IPBR - Individual Pulse Baseline Restoration. The baseline is established for each individual pulse for maximum pulse height accuracy.
  3. AOPS - Automatic Optimized Pulse Shaping. Pulses are continuously analyzed and the signal pulse shaping adjusted for optimum performance.
  4. Stated energy resolution is for new systems.  Refurbished system performance depends on quality of Xtals supplied.
  5. The dimension includes removable mounting rails.