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Thermo Scientific™ Mini 900 Scintillation Monitors

Thermo Scientific™ Mini 900 Scintillation Monitor serves as a portable or benchtop style radiation counter.

Brand:  Thermo Scientific™ MFG016

Additional Details : Weight : 1.00000kg

 View more versions of this product

Product Code. 12837715

  • 4773.12€ / Each


Estimated Shipment
28-07-2021
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Description

Description

Thermo Scientific™ Mini 900 Scintillation Monitor serves as a portable or benchtop style radiation counter.

A variety of different probes to accommodate most radiation detection needs.

Feature a large logarithmically scaled meter with an open scale at the lower end to show background levels of radiation while displaying high levels without switching

  • Several configurations available
  • Built-in speaker provides audible feedback of the radiation intensity
  • An alarm can be set to tripat any level on the scale
  • Battery or line powered
  • Packaged in a durable, lightweight aluminum case&bulletc1_end;

    Type R:

    • Monitoring High Level Dose Rates A monitor scaled over the range 0.5 to 5000μSv h-1 (0.05 to 500mR/h)
    • G-M tube is compensated to give a useful response from 45 keV to 1.5MeV and above
    • Not recommended for monitoring X-radiation from apparatus operating below 75kVp

    Type G:

    • Monitoring for Low Environmental Dose Rates Highly sensitive performance
    • Scaled over the range 0.05 to 75μSv h-1 (0.005 to 7.5mR/h)
    • Useful energy range: 55 keV to 1.5MeV and above
    • Not suitable for monitoring X-radiation

    Type D:

    • Uses partially compensated G-M tube to obtain an extended low energy response
    • Scaled over the range of 0.5 to 1000μSvh-1 (0.05 to 100 mR/h)
    • Useful energy range: 30 keV to 1.5MeV but response is maintained down to at least 17 keV
    • Suitable for measuring radiation from X-ray apparatus operating at or above 45kVp

    Type X:

    • Scaled 0.5 to 2000 counts per second Uses an end window G-M tube without energy compensation
    • Sensitive to radiation down to 10keV Useful for locating X-ray leakage from a variety of systems including high voltage equipment
    • Not intended for measurement but as a relative check device
  • Type 41:

    • Sodium iodide crystal (19mm dia. × 25mm thick)
    • Suitable for energies from 25 keV upwards
    • A lead cylinder surrounds the crystal gives the probe directional properties as well as reducing background
    • Diameter: 41mm
    • Length: 220mm

    Type 41S:

    • Cylinder without lead shielding and with a larger sodium iodide crystal (25mm dia. × 38mm thick) for increased sensitivity
    • Suitable for energies from 25 keV upwards The probe is essentially omni-directional for medium and high energy gamma radiation
    • Diameter: 38mm
    • Length: 217mm

    Type 42A:

    • Sodium iodide crystal 23mm dia. × 1mm thick with a 14mg cm2 aluminum window
    • Probe has a higher sensitivity than the Type 41 for gamma energies below 60 keV to a minimum of 10-15 keV
    • An integral lead collimator makes it particularly useful for 125I thyroid monitoring and deep vein thrombosis location
    • Diameter: 40mm
    • Length: 187mm

    Type 42B:

    • This probe is the beryllium window version of the type 42 and detects very low gamma energies down to 5keV
    • The response above 15 keV is almost identical to the 42A

    Type 44A:

    • The sodium iodide crystal (32 × 2.5mm thick) is mounted on the front surface of the probe to facilitate monitoring of large contaminated areas Suitable for a range of energies from approximately 15 keV to 250 keV Beta sensitive for energies above 500 keV
    • Diameter: 50mm
    • Length: 180mm
    • Aluminum window weight: 14mg/cm2

    Type 44B:

    • This probe is the beryllium window version of the above and extends the sensitivity down to approximately 5keV, making it useful for 55Fe
    • 3.7kBq (0.1μCi) of 55Fe at 10mm yields approximately 180 counts s-1
    • Window weight: 47mg/cm2

    Includes:

    Each unit comes with a comprehensive manual containing tables and curves of response to different radiations and other useful information

    Recommended for:

    The 900 Series of radiation counters are well established in teaching, research, hospital and industrial laboratories

Specifications

Specifications

~300 hr. at 4 hours/day
Type 900/44A
Paralysis Time: Scale corrected to give true reading; Meter Integration Time: 1 to 4 seconds set to match counting rate; Overload Protection: No meter 'fallback' with intensities at least 100 times full scale reading
130 s-1 due to 3.7 kBq 99Tc at 20 mm
2.2 lb.
20 - 30 s-1
The 900 Series of radiation counters are well established in teaching, research, hospital and industrial laboratories
Scintillation Monitor
6 type AA cells, alkaline (IEC LR6) or rechargeable (IEC KR 15/51)
Photomultiplier Tube
Gamma or X-Ray depending on config.
Main Power: 12 - 18VDC; GM Tube: 300 - 700V
1 kg
The monitor conforms to the requirements of the International Technical Commission publication 325
Type 900/44A
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