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Overhoff Technology Overhoff Technology Corporation Corporation New Developments in New Developments in Tritium Monitors Tritium Monitors 1 September 2012 HPIC
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Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Mar 26, 2015

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Page 1: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Overhoff Technology Overhoff Technology CorporationCorporation

New Developments New Developments inin

Tritium MonitorsTritium Monitors

1September 2012 HPIC

Page 2: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Overhoff Technolgy

Our core business:

Design and manufacturing ofTritium in Air monitors

with ionization chamber detectors

• Portable• Fixed

2September 2012 HPIC

Page 3: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Overhoff Technolgy

Also:

Low Level Tritium in Air

• Gas Proportional Detectors• Passive Samplers (Bubblers)

3September 2012 HPIC

Page 4: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Overhoff Technolgy

Additional Areas of Interest:

• Tritium in Water• Radon

• Environmental Gamma• Data Acquisition

4September 2012 HPIC

Page 5: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Focus of Discussion

New Developments inOverhoff Tritium monitors

• Portable400AC, 200SS, 2x200-LD, TriCair

• Fixed421-HTO; 321BWC, 593, Triathalon

5September 2012 HPIC

Page 6: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Portable

Model 400AC

• MDA of about 2 Ci/m3 • Immune to radon• Dual channel Electrometer• Quad chamber for total Gamma

compensation• Communication to PC via RS-232;

Automatic Gamma CalibrationDiagnostics; battery life, power

supplies• Rechargeable NiMH Batteries• Constant flow; 2 LPM (5 volume

changes/min)

6September 2012 HPIC

Page 7: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Portable

Model 200SS

• Based on the Model 200SBNon-Gamma compensated, usesboth chambers for tritium measurementSuccessor to the Model 394 and AN/PDR-74

• 400cc volume; MDA of 2-3 Ci/m3

• Radon suppression• Fast response, 10 seconds to 90% of final

reading• Low cost

7September 2012 HPIC

Page 8: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Portable

Model 2x200-LD

can be configured as a “sniffer” to provide real-time indication of the T2

and T2O concentrations which allow

the user to quickly identify the source of leakage of tritium from

containers.8September 2012 HPIC

Page 9: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Portable

Model 2x200-LD

• Dual channel electrometer

• T2 and T2O, are selected with a front panel toggle switch

• Measurement appears on a single digital display.

9September 2012 HPIC

Page 10: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

September 2012 HPIC 10

T2O + T2 SAMPLE IN

HEPA FILTER

T2 OUTDRIERITE

PUMP

T 2O/T 2

MODEL 2x200AS CONFIGURED ON DEMO UNIT

MAT2O/T2

Switch 2

1

+

+

-

-T2

T2O

Model 2x200-LD

Portable

Page 11: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Portable

TriCair

• Convertible hose connections and traps tomeasure Tritium or C14

• Dual channel electrometer

• T2 and C14 are selected with a front panel toggle switch

• Measurement appears on one display. 11September 2012 HPIC

Page 12: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Fixed MonitorModel 421-HTO

Nuclear Power Plant Monitor

(Heavy Water)

High Sensitivity Monitor in the

presence of high concentrations

of Noble Gases

Uses Nafion Dryer, only HTOpasses through

12September 2012 HPIC

Page 13: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Fixed MonitorModel 321BWC

Cart mounted systemIs semi-portable

Dual chambergamma compensated

13September 2012 HPIC

1” thick lead shieldingfor additional gamma compensation

Page 14: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Fixed MonitorModel 593 Revamped in

2012

Gas proportional detectors, MDA is 1 kBq/m3

Measures T2 and T2O, Oxidizer included

Noble gas compensation

Updated preamplifier

Single Board Computer

LCD touch screen14September 2012 HPIC

Page 15: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

Fixed MonitorTriathalon

Family of monitors with multipleconfigurations for measurement of:

Tritium, C14, and Noble Gases

15September 2012 HPIC

Page 16: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

September 2012 HPIC 16

Thank You!

Q and A

Page 17: Overhoff Technology Corporation New Developments in Tritium Monitors 1September 2012 HPIC.

September 2012 HPIC 17

Questions and comments may be directed to:

Dell Williamson

Overhoff Technology Corporation

1160 U.S. Route 50

Milford, Ohio 45150 U.S.A.

Ph 513-248-2400, Fx 513-248-2402

[email protected]