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Shonka, Spokas and Shonka Wyckoff Chambers SeeDOS provides the world-famous Exradin ion chambers. For over 25 years, Exradin chambers have provided uncompromising quality, scientific integrity and dependability. Exradin ion chambers are waterproof, fully guarded, and the chamber electrodes are made entirely of homogenous conducting plastic, providing excellent conductivity. For more information on Exradin products click here. Exradin ionization chambers are available from SeeDOS for a wide range of dosimetric measurements in diverse radiation beams. The chambers find applications in the fields of radiation therapy, diagnostic radiology, and radiation protection and research. Applications for which Exradin chambers are suited include beam calibration, quality assurance, dose assessment, depth-dose studies, mixed field dosimetry, monitoring, background measurements, and a variety of research studies. For an Electrometer for use with your Exradin Chamber please click here For a pictorial listing of available Cable Connectors, please click here Model 1 - Miniature Shonka Thimble Chamber, SeeDOS Code Number 92705
Collecting Volume: 0.056 cm3 Nominal Calibration Factor: 60 R/nC Centroid of Collecting Volume: 4.0 mm from tip of chamber Collector Diameter: 1.0 mm Outside Diameter Sensitive Region: 6.0 mm Wall Thickness: 1.0 mm Wall, Collector, and Guard Material: Maximum Polarizing Potential: No greater than 1000 V Inherent Leakage Currents: Less than 10-15 Amperes Cable: 50 Ohms, 29 pF/f, 1.5 m long Signal Connector: Triaxial BNC Plug High Voltage Connector: Integral with triaxial connectors (shell of chamber is common with connector body). Venting: Vented to the ambient via the flexible vent tube surrounding the triaxial cable. Stem: 1/2" OD black phenolic two-piece (4" + 5")
For an Electrometer for use with your Exradin Chamber please click here
For a pictorial listing of available Cable Connectors, please click here
If you are interested in any of the products mentioned here, please fill out an Enquiry Form or Go To the Ion Chamber Product List / Quotation Request Form, so that we may promptly respond to your request.
Model 1SL - Slim Line Miniature Shonka Thimble Chamber, SeeDOS Code Number 92722
Collecting Volume: 0.056 cm3 Nominal Calibration Factor: 60 R/nC Centroid of Collecting Volume: 4.1 mm from tip of chamber Collector Diameter: 1.0 mm Outside Diameter Sensitive Region: 6.25 mm Wall Thickness: 1.1 mm Wall, Collector, and Guard Material: Model A1SL – Shonka air-equivalent plastic C552 Maximum Polarizing Potential: No greater than 1000 V Inherent Leakage Currents: Less than 10-15 Amperes Cable: 50 Ohms, 29 pF/f, 1.5 m long Signal Connector: Triaxial BNC Plug High Voltage Connector: Integral with triaxial connectors (shell of chamber is common with connector body). Venting: Vented to the ambient via the flexible vent tube surrounding the triaxial cable. Stem: Integral with chamber; Aluminum, 0.246 in OD by 4 in long. Other lengths available upon request.
For an Electrometer for use with your Exradin Chamber please click here
For a pictorial listing of available Cable Connectors, please click here
If you are interested in any of the products mentioned here, please fill out an Enquiry Form or Go To the Ion Chamber Product List / Quotation Request Form, so that we may promptly respond to your request.
Model 2 - Spokas Thimble Chamber, SeeDOS Code Numbers A2,M2,P2,T2
Collecting Volume: 0.5 cm3 Nominal Calibration Factor: 6 R/nC Centroid of Collecting Volume: 7.0 mm from tip of chamber Collector Diameter: 4.6 mm Outside Diameter Sensitive Region: 11.5 mm Wall Thickness: 1.0 mm Wall, Collector, and Guard Material: Model A2 – Shonka air-equivalent plastic C552 Maximum Polarizing Potential: No greater than 1000 V Inherent Leakage Currents: Less than 10-15 Amperes Cable: 50 Ohms, 29 pF/f, 1.5 m long Signal Connector: Triaxial BNC Plug High Voltage Connector: Integral with triaxial connectors (shell of chamber is common with connector body). Venting: Vented to the ambient via the flexible vent tube surrounding the triaxial cable. Stem: 1/2" OD black phenolic two-piece (4" + 5") long
For an Electrometer for use with your Exradin Chamber please click here
For a pictorial listing of available Cable Connectors, please click here If you are interested in any of the products mentioned here, please fill out an Enquiry Form or Go To the Ion Chamber Product List / Quotation Request Form, so that we may promptly respond to your request.Models A3, A4, A5, and A6 - Shonka-Wyckoff Chambers,SeeDOS Code Numbers A3, A3-2.3, A3-4.8, A3-7.3, A3-9.8, A4, A4-2.0, A4-9.5, A5,A5-2.0, A5-9.5, A6, A6-2.0
Specifications
Features Collecting Volume: See table Collector Diameter: 2r (see table for values of r) Wall Thickness: w (see table for values of w) Wall, Collector, and Guard Material: Shonka air-equivalent plastic C552 Maximum Polarizing Potential: No greater than 1000 V Inherent Leakage Currents: Less than 10-15 Amperes Cable: 50 Ohms, 29 pF/f, 1.5 m long, except connector is attached directly to stem in the A6 Signal Connector: Triaxial BNC Plugs High Voltage Connector: Integral with triaxial connectors (shell of chamber is common with connector body). Vent Holes: Two holes, open to the ambient, are located on the neck of the chamber. Stem: Black phenolic, 9 in long. See table for stem diameter. Special stem arrangements are available upon special request.
For an Electrometer for use with your Exradin Chamber please click here
For a pictorial listing of available Cable Connectors, please click here
If you are interested in any of the products mentioned here, please fill out an Enquiry Form or Go To the Ion Chamber Product List / Quotation Request Form, so that we may promptly respond to your request.
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