Low background Alpha/Beta Product Line

Multi-Detector Low Background Alpha/Beta Counter Protean Instrument Corporation Multi-Detector Low Background Alpha/Beta Counter

Low Back Alpha-Beta Counting Industry accepted/standard method for the measurement of total alpha and beta emitting radionuclides in the environment Surface removable contamination Drinking water qualification USEPA 900 Safe Water Drinking Act (SWDA) WHO Guidelines Specific radionuclide determinations Radium 226/228, Strontium 89/90, total Uranium Provides sensitivity (efficiency and background) to meet regulatory compliance detection limits

Low Background Proportional Counting Manual Systems. Automatic Systems with sample changers Multi-Detector Systems Gas Flow Systems Gasless Systems Windowless Systems (Ultra Sensitive Low Background Systems)

Multi-Detector Low Background Alpha/Beta Counter Protean Instrument Corporation Multi-Detector Low Background Alpha/Beta Counter

MDS Summary The MDS is: 4, 8, 12, 16, 20 detector manual system Gas flow proportional detectors Ultra low background Ultra thin window PC controlled

Physical - Size Footprint Bench weight: 34 x 25 in. / 81 x 64 cm Each 4 detector chassis Bench weight: 1200 lbs. / 545 kg. for each 4 detector chassis due to advanced shield design The MDS has more shielding per detector, more uniform shielding per detector, and more shielding between adjacent detectors

Physical - Summary MDS is: Easy to place in a crowded lab Form factor, Weight (340 lbs./sq. ft.), Connection interface NO Rear Access Room Required!

Counting Performance* (Typical / Warranted) 0.05 / 0.06 0.7 / 0.8 Typical 40% 12% 55% Alpha Bkg. CPM Beta Bkg. CPM Alpha Eff. 4pi Po210 Th230 Am241 Beta Eff. 4pi C14 Sr90 Tc99 Cs137

Performance Advantage In Design The MDS shield design provides several important benefits for the customer: 1. Lower background, Much better protection against crosstalk between detectors 2. The shield design allows service, especially window changes, from the front, without any shield disassembly

Designed For Redundancy and Better Isolation MDS - ALL INDEPENDENT ELECTRONICS PER DETECTOR

Redundancy in Configuration for MDS-20 MPC-9604 MPC-9604 MPC-9604 MPC-9604 MPC-9604

Operating Features Sample Loading Why are independent drawers important when Canberra and Berthold claim independent start/stop for each detector? All other systems interrupt counting on all detectors in a drawer when that drawer is opened, lengthening the real count time. The MDS allows true independent start/stop of count times, regardless of what happens with other detectors …

Design Advantage Sample Loading MDS has 1 independent drawer per detector

Maintenance Easy Design MDS Maintenance Access

Advantages in Sample Loading Why are independent drawers important when Canberra and Berthold claim independent start/stop for each detector? All other systems interrupt counting on all detectors in a drawer when that drawer is opened, lengthening the real count time. The MDS allows true independent start/stop of count times, regardless of what happens with other detectors …

Design Advantage Sample Loading MDS has 1 independent drawer per detector

Design Advantages In Gas Flow Factory set flow rate with Gas-PRO fully proportional gas flow rate sensing that halts counting in the case of any gas flow failure. Detected failures include empty tank, blocked gas line, leaking detector window, broken detector window. Detectors are connected in parallel, making it very simple and fast to disconnect a detector for service

Gas-PRO The MDS has Gas-PRO Gas-PRO monitors the entire gas path Gas-PRO i will not allow sample counting if the gas flow rate is incorrect Gas-PRO is a standard feature of every Protean system with a gas flow detector.

Gas Sensing the Old Way Other Systems A gas pressure sensor is at the beginning if the gas path. Any fault downstream has no effect on the sensor.

Gas Sensing the PIC Way The gas flow rate sensor is at the end of the gas path, after the detectors.

Maintenance Easy Design MDS Maintenance The MDS has complete front of system access for everything The detector window is completely accessible from the front No lead has to be lifted for any repairs Window change within 10-15 minutes ! NO REAR ACCESS IS REQUIRED !

Maintenance Easy Design MDS Maintenance Access

Maintenance Easy Design MDS Maintenance Electronics All critical functions are in individual modules Each function/module can be replaced without affecting others Each module has minimal connections and mounting points, making them very easy to exchange Re-calibration is needed only if the replaced module changes calibration

Maintenance Easy Design Maintenance Summary The MDS is designed for optimum ease of user maintenance, with no sacrifice in cost or performance, all routine maintenance can be performed quickly and easily

Operating Features System Control Software: MDS uses software written to make it easy for End User The MDS is the only system using software written with current development tools

Operating Features System Control MDS database is extremely easy to use, nearly impossible to break

Operating Features Report Generation Data Access The MDS provides self contained reports without relying on external applications Data Access MDS stores data in MS Access format The MDS database is simple, reliable, and easy for customers to use

Counting Features MDS has “Count to MDA” which allows the system to adjust count time according to the sensitivity required and each samples characteristics Independent detector drawers PLUS Count to MDA allows sample throughput greater than competitors.

Counting Feature MDS has “Count to MDA” which allows the system to adjust count time according to the sensitivity required and each samples characteristics

Product Comparison Summary PIC MDS Much better counting performance Independent sample drawers & detectors Redundancy of electronics for reliability Better Detector design Vastly better maintenance Reliability + service cost Provides Factory Regional Support Center

Low background Alpha/Beta Systems