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Technical Data

Uranium Ore Face Scanning System, Type : FS900 manufactured by Nucleonix Systems is exclusively designed to meet the requirements in Uranium mines for oreface scanning and bore hole loggining for mining purposes to estimate the ore grade.
Measuring Unit developed by Nucleonix Systems is a compact, light weight, portable and battery powered unit.
System essentially has three parts consisting of
(a). Electronic measuring unit
(b). Face scanning probe assembly comprising of a detector with adequate shielding is 2p geometry and a long connecting cable.
(c). Bore hole logging probe with a long connecting cable between the probe and measuring Unit.
Unit has three modes for data acquisition namely CPS, CPM and GRADE. In GRADE mode when operated this instrument directly reads, computes and displays ore grade in ppm. Of course the reading is updated on each time constant (TC).
Initially, this unit is to be calibrated using ore standards. First BG (Background) and averaged BG is acquired and remembered by the unit. Then user can place one to three standard graded samples and enter their values into the system. Once this is done, unit gets calibrated and is ready for use.


  • Conforms to ANSI N42.17A performance specifications for Health Physics instrumentation (portable)
  • Compact, light weight, portable, hand held, battery powered instrument
  • Modes of Data Acquisition : CPS, CPM and GRADE
  • Detector : GM Tube
  • Choice of Adj. TC (Time Constant) in ‘GRADE’, acquisition mode
  • Built-in automatic BG (Background) recording and subtraction provided to indicate net CPS, CPM or ore GRADE in PPM
  • Can store 1000 readings at users choice
  • Built-in RS232 serial port facilitates data downloading into PC
Radiation Detected
Halogen Quenched Beta-Gamma Radiation Detector Type : GM137
Detector Probes
(1) GM Detector type LND 72118 enclosed in cylindrical shell covered with adequate 1” Lead Shielding on all sides excepting on measuring ore Face & connected to measuring unit through a 5Pin I/O connector.
(2) Bore hole logging probe comprising of GM detector type70031 of Vacutec make / LND 78017 of LND make housed in a long brass housing of dimensions not exceeding 36mm dia. This probe is connected to main unit through a 3 pin circular connector.
Modes of Data Acquisition
TC Selection
10 sec to 100 sec (Applicable for GRADE mode only)
Measuring Range for Grade
0.001 to 1.0% e U3O8
Background correction
Automatic subtraction
Visual Indicaton
i) Dotmatrix LCD display for reading CPS, CPM & GRADE
ii) Low battery indication on LCD display
Built-in piezo buzzer provides beeps for every detected pulse.
User Interface
User interface is through SIX control buttons START, STOP, PROG, STORE/RECALL, INC & DEC. The above functions allow the user to program & operate the instruments in different modes.
Data storage memory
Stores readings upto 1000 readings in built-in EEPROM. Stored data can be recalled on the display or transmitted to PC through RS 232c serial port.
7.5 Volts, DC, size AA, MN1500 LR6 (5 X 1.5 Volts), Alkaline cells.
Serial Port / Data Communication
Built-in serial port facilitates data down loading into PC. Data Communication Software with connecting cable can be provided at extra cost as an additional option.
Type test compliance
Conforms to ANSI N42.17A performance specifications for Health Physics instrumentation (portable)
106W x 196L x 85Ht in mm (approx)
168 mm Length x 25mm dia (approx) - without Lead Shielding & handle
Plot No.162 A & B, Phase-II, IDA, Cherlapally, Hyderabad-500051 India Phone:+91-40-32918055, 32914548 Fax : 040 - 27262146
Copyrights (c) 2008, Nucleonix Systems, All rights reserved.