Work Place Air Monitoring 6/27/17 Rich Palatine NPP Sales Manager - - PowerPoint PPT Presentation

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Work Place Air Monitoring 6/27/17

NPP Sales Manager Rich Palatine

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Operational Training Course Presentation Outline:

• System Overview
• AMS 4 Beta/Gamma CAM Overview
• Alpha 7 Alpha Air CAM Overview
• HEC Air Sample In-Field Sample Unit
• What’s new in Remote Monitoring:

Link 2 & Link 2 Controller/Display

• Q & A

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AMS 4 System Overview

• The AMS-4 is a radiation-in-air detection

system, designed to provide early warning to workers exposed to potential airborne releases of beta emitting particulates, iodine

• r noble gases. Its lightweight and robust

design accommodates both fixed and portable use applications

• An AMS-4 system is comprised of the

microprocessor-based central readout device, mated to any of a variety of detection heads which are either attached directly to the readout or used remotely via extension cables.

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AMS 4 System Overview

• The monitor offers user-selected alarms

based on DAC or DAC-hour levels of common radionuclides as specified by 10 CFR Part 20. The system additionally permits the user to enter a DAC constant for a new nuclide or a mixture of nuclides. The AMS-4 is portable, has real time gamma background subtraction using two detectors, remote sampling capability and can be stand-alone or part of a network of beta

• CAMs. The system can also be used for

stack monitoring of effluent releases using the in-line detector head.

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AMS 4 System Overview

• The Radial Head (OPT14) and Noble Gas

Head (OPT8) both use a 2 inch diameter sealed gas proportional detector. The In-line (OPT7) uses a 1 inch diameter version of the same detector.

• The OPT14 is more sensitive than the OPT7

because of the larger detector. Either detector head can be used with charcoal impregnated filter paper FIFP16 for the measurement of I-131.

OPT14 Radial head OPT8 Nobel Gas head OPT7 In-line head

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Specifications

• DISPLAY UNIT (AMS4)
• Size: W11.0 in. D 7.3 in. H 12.8 in.
• Weight: 7.4 lbs. (3.3 Kg);
• Operating Temperature: 0oC to 50oC (32oF to 122oF)
• Storage Temperature: -20oC to 85oC (-4oF to 185oF)
• Power Requirements: 85-264 VAC 50-60 Hz or 105-370

VDC, 120 Watts

• Fuse: 1 Amp Slow Blow @ 120 VAC
• Analog Output: 0-5 VDC, Five decades logarithmic
• Display: Two rows x 20 characters vacuum fluorescent
• Bar Graph: % Alarm 40-element LED bar graph
• Keypad: 18 keys, full numeric plus function keys
• Flow Rate Range: 8.5 to 113 l/min, 0.5 to 6.8 m3/hr (0.3 to

4.0 ft3/min)

• Status Indicators: Ready and Malfunction status lights,

Alarm strobe light, Sonalert

• Communication Ports: Computer: DB9, RS-232 standard,

RS-485 optional

• Concentration and Status
• Alarm/Fail Relays: SPST, 15 A @ 30 VDC / 120 VAC

resistive

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AMS 4 System Overview

• The AMS4 requires a vacuum pump to
• perate correctly as a complete system. We
• ffer two options for pumps for the AMS4
• line. The AMS4OPT1 can be mounted

below the AMS4 controller and the RAP1 is for remote head o

• AMS4OPT1 Integral vacuum pump, 115 VAC, 60

Hz

• RAP1 Regulated Air Pump, 120 VAC, 60 Hz

It is important to note that the integrated pump OPT1 is not intended for 24/7 operation while the RAP1 Oilless, carbon vane pump can operate continuous for up to 6 months with proper care AMS4OPT1 RAP1 remote pump

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Theory of Operation AMS4 Main Equations: WILL GO OVER IN WORKSHOP!

Volume Flow Unit Activity Rate tion Disintegra Efficiency Beta Rate Count Net Beta Rate Count Net Beta = ion Concentrat Alarm Fast/Slow

previous current

 

Interval Time Alarm Counts Net Beta = Rate Count Net Beta

Counts Background Beta Counts Channel Beta = Counts Net Beta 

• Now calculates concentration and not just gross count rate
• Raises the issue of negative concentration (as compared to a rate meter).

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Theory of Operation MDC and MDA WILL GO OVER IN WORKSHOP

• AMS-4 calculates MDA (Minimum Detectable Activity) and then divides by volume to

calculate the MDC (Minimum Detectable Concentration)

Interval Time Alarm K 3 + Counts Background Beta 4.65 = MDA Slow / Fast 

Unit Activity Rate tion Disintegra Efficiency = K 

Volume Flow MDA Slow / Fast = MDC Slow / Fast

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Alpha-7x Components

• Hardware
• Display unit
• In-Line Head OPT3
• Radial Entry Head OPT2
• Communications Cable
• Vacuum supply
• Software
• Alpha-7A Calibration
• Alpha-7A Client

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Alpha-7A Display

• Connections
• Detector Head
• Communications
• Analog and Digital Signals
• Controls
• Push button
• Visual Displays
• Electroluminescent
• LED’s
• Alarm Light
• Audible Annunciation
• Sonalert or Optional External Horn or Bell

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Hardware – Radial Head

• Alpha7 OPT2 Radial Entry Detector Head
• Smart Heads
• Completely interchangeable for ease of calibration
• All calibration is resident on the head
• Operational parameters stay on the display unit
• RS-485 to the Display Unit
• Ambient air monitoring
• No filter holder required
• Fastest response to a sudden release
• Smallest package available

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Radial Head Familiarization

• Controls
• Red Alarm Light
• Sonalert for Audible
• RF screen
• Knob for filter changes
• Air inlet
• Cable to Display Unit

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Radial Entry Head

• Filter Changes
• Unscrew Door
• Remove Ring
• Replace Filter
• Replace Ring
• Close Door
• Tighten

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Alpha 7 Screen Shot

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“Fast” and “Slow” Calculations

• Both Concentration in DAC and Dose in DAC-h
• Concentration is the current ambient condition
• Dose is the activity on the filter paper
• Fast – short time (measured in seconds) interval provides fast

response to sudden increases – high or acute exposure levels

• Slow – longer time interval (measured in minutes) for better

statistical accuracy at low, chronic levels

• Both operate simultaneously giving the instrument the best of

both requirements

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Peak Fit Example (Real Data)

100 200 300 400 500 600 1 24 47 70 93 116 139 162 185 208 231 254 277 300 323 346 369 392 415 438 461 484 507 Channel Number Counts

Po-212 Po-214 Po-218 Pu-239

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Los Alamos Testing Results (2013)

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Portable Field α, β Smear Sampling

The RadEye HEC

• Portable sample counting

system

• Simultaneous alpha and

beta Smear/Filter readings radiation measurements.

• Readings automatically

Displayed/logged to Rad Eye for later retrieval to a PC.

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Portable Field α, β Smear Sampling Key Features and Benefits

• Simultaneous alpha/beta

measurements

• 800 hours battery operation
• Non-volatile data storage
• Customized library of up to 16

test sources with automated half life correction

• Library of up to 16 nuclide

efficiencies

• Simple detector performance

verification with 9 g Lutetium Test Adapter

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• The Link 2 Transmitter is a versatile, weatherized

transceiver used to transmit via multiple wireless

• ptions
• 900 MHz or WiFi Transmission
• Can be used in a 1:1 (actually 2:1) WIRED Mode:
• AMS 4 (serial devices)
• Alpha 7
• 3rd party Monitors
• Non-Rad Monitors as well
• Multiple Sensor (up to eight (8) via wireless

(900MHz or WiFi) to Linked 2 TX

• Re-chargeable Battery for up to 4-6 hours of

portable use; AC Power

Telemetry Capabilities for Air Sampling System: Link 2 Universal Transmitter

Linked 2 TX Linked 2 Base

Allows Remote Monitoring, Alarms, and Proactive Monitoring

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Link 2 Display Controller (Video Display Unit) ----Features Live-time data displayed on any sized display (HDMI; VGA adaptor) Configurable display (via pre-set display template menu); keyboard to attach for set up Data ‘Boxes’ or Map display Interface with Thermo Fisher Wireless (VP SAT, CNET) and Mirion (WRM) wireless platforms Direct/wired connectivity available via USB ports Integrated Wi-Fi, and Bluetooth Connectivity 110 VAC Power Color-coded Alarms

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Link 2 Display Controller (Video Display Unit) ----Screen/Display Templates

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Thermo and IIS Can Assist in Developing in Air Monitoring Strategy