Exradin® Ion Chambers

Exradin®

Thimble Ion Chambers

Strict manufacturing tolerances and waterproof construction makes these detectors ideal for dosimetry calibrations in water, air and other phantom materials.


	Exradin® A19 Ion Chamber, Waterproof Classic Farmer, 0.62cc Learn More	Exradin® A12 Ion Chamber, Waterproof Farmer Type, 0.64cc Learn More	Exradin® A1SL Ion Chamber, Slim Line Miniature Shonka, 0.053 cc Learn More	Exradin® A28 Ion Chamber, Scanning, 0.125cc Learn More
Collecting Volume	0.62 cm³	0.64 cm³	0.053 cm³	0.125 cm³
Centroid of Collecting Volume*	13.0 mm	12.9 mm	4.06 mm	4.47 mm
Outside Diameter of Shell	7.1 mm	7.1 mm	6.35 mm	8.0 mm
Inside Diameter of Shell	6.1 mm	6.1 mm	4.0 mm	5.8 mm
Shell Wall Thickness	0.5 mm	0.5 mm	1.2 mm	1.1 mm
Collector Diameter	1.0 mm	1.0 mm	1.0 mm	1.0 mm
Collector Length	21.6 mm	21.6 mm	4.4 mm	6.4 mm
Spot Size**	26.2 x 7.0 mm	26.5 x 7.1 mm	8.0 x 6.4 mm	8.0 x 8.0 mm
Shell, Collector, and Guard Material	C552™	C552™	C552™	C552™
Nominal Air Kerma Calibration Factor	4.5E+7 Gy/C	4.4E+7 Gy/C	5.4E+8 Gy/C	2.3E+8 Gy/C
Nominal Leakage	+/- 10 fA	+/- 10 fA	+/- 10 fA	+/- 10 fA
Maximum Polarizing Voltage	1000 VDC	1000 VDC	1000 VDC	1000 VDC
Waterproof	Yes	Yes	Yes	Yes
Included Build-up Cap	⁶⁰Co	⁶⁰Co	none	⁶⁰Co
From exterior tip of shell * Spot Size is not “minimum field size” – these dimensions are provided to enable the user can ensure their ion chamber’s spot size is smaller than the 100% isodose line to prevent any partial volume effects. Shonka air-equivalent plastic C552**

Exradin®

Micro Ion Chambers

Superior small-field dosimetry to assess pinpoint radiation in IMRT, stereotactic, orthovoltage, x-rays and superficial skin therapy.


	Exradin® A16 Ion Chamber, MicroPoint, 0.007cc Learn More	Exradin® A26 Ion Chamber, MicroPoint, 0.015cc Learn More	Exradin® A14SL Ion Chamber, Slim Line Microchamber, 0.015cc Learn More	Exradin® A14 Ion Chamber, Microchamber, 0.015cc Learn More
Collecting Volume	0.007 cm³	0.015 cm³	0.015 cm³	0.015 cm³
Centroid of Collecting Volume*	1.65 mm	1.98 mm	2.39 mm	2.21 mm
Outside Diameter of Shell	3.4 mm	4.3 mm	6.35 mm	6.0 mm
Inside Diameter of Shell	2.4 mm	3.3 mm	4.0 mm	4.0 mm
Shell Wall Thickness	0.5 mm	0.5 mm	1.2 mm	1.0 mm
Collector Diameter	0.3 mm	0.3 mm	0.75 mm	0.3 mm
Collector Length	1.27 mm	1.78 mm	1.5 mm	1.5 mm
Spot Size**	3.5 x 3.4 mm	4.3 x 4.3 mm	5.3 x 6.4 mm	5.3 x 6.4 mm
Shell Material	C552™	C552™	C552™	C552™
Nominal Air Kerma Calibration Factor	4.1E+9 Gy/C	1.85E+ 9Gy/C	1.95+9 Gy/C	1.95+9 Gy/C
Nominal Leakage	+/-10 fA	+/-10 fA	+/-10 fA	+/-10 fA
Maximum Polarizing Voltage	1000 VDC	1000 VDC	1000 VDC	1000 VDC
Waterproof	Yes	Yes	Yes	Yes
Included Build-up Cap	⁶⁰Co	⁶⁰Co	None	None
From exterior tip of shell * Spot Size is not “minimum field size” – these dimensions are provided to enable the user can ensure their ion chamber’s spot size is smaller than the 100% isodose line to prevent any partial volume effects. Shonka air-equivalent plastic C552 Shonka tissue-equivalent plastic A150**

Exradin®

MR Safe Thimble Ion Chambers

Strict manufacturing tolerances and waterproof construction make these detectors ideal for dosimetry calibrations in water, air, and other phantom materials. The only MR Safe Ion Chambers on the market.


	Exradin® A19MR Ion Chamber, Classic Farmer-type, 0.62cc Learn More	Exradin® A26MR Ion Chamber, Micropoint, 0.015cc Learn More	Exradin® A1SLMR Ion Chamber, Slimline Miniature Shonka, 0.053cc Learn More	Exradin® A28MR Ion Chamber, Scanning, 0.125cc Learn More
Collecting Volume	0.62 cm³	0.015cm³	0.053 cm³	0.125 cm³
Centroid of Collecting Volume*	13.0 mm	1.98 mm	4.06 mm	4.47 mm
Outside Diameter of Shell	7.1 mm	4.3 mm	6.35 mm	8.0 mm
Inside Diameter of Shell	6.1 mm	3.3 mm	4.0 mm	5.8 mm
Shell Wall Thickness	0.5 mm	0.5 mm	1.2 mm	1.1 mm
Collector Diameter	1.0 mm	0.75 mm	1.0 mm	1.0 mm
Collector Length	21.6 mm	1.78 mm	4.4 mm	6.4 mm
Spot Size**	26.2 x 7.0 mm	4.3x4.3 mm	8.0 x 6.4 mm	8.0 x 8.0 mm
Shell, Collector, and Guard Material	C552™	C552™	C552™	C552™
Nominal Air Kerma Calibration Factor	4.5E+7 Gy/C	1.85E+9 Gy/C	5.4+8 Gy/C	2.3E+8 Gy/C
Nominal Leakage	+/- 10 fA	+/- 10 fA	+/- 10 fA	+/- 10 fA
Maximum Polarizing Voltage	1000 VDC	1000 VDC	1000 VDC	1000 VDC
Waterproof	Yes	Yes	Yes	Yes
MR Safe	Yes	Yes	Yes	Yes
Included Build-up Cap	⁶⁰Co	⁶⁰Co	None	⁶⁰Co
From exterior tip of shell * Spot Size is not “minimum field size” – these dimensions are provided to enable the user can ensure their ion chamber’s spot size is smaller than the 100% isodose line to prevent any partial volume effects. ** Shonka air-equivalent plastic C552

Exradin®

Parallel Plate Chambers

Exradin Parallel Plate Chambers ensure precision in depth-dose measurements by providing uniform field lines even at low energies.


	Exradin® A10 Ion Chamber, UltraGuard Markus-type Waterproof Electron Chamber, 0.050 cc Learn More	Exradin® A30 Ion Chamber, 0.007 cm3 Ultra Thin Parallel Plate Learn More	Exradin® A11TW Ion Chamber, Spokas Thin Window Parallel Plate, 0.93cc Learn More	Exradin A20 Low Energy X-Ray Ion Chamber, 0.074cc Learn More
Collecting Volume	0.050 cm³	0.0077cc	0.93 cm³	0.074 cm³
Centroid of Collecting Volume*	1.0 mm	3.33 mm	1.5 mm	1.8 mm
Window Collector Gap	2.0 mm	0.3 mm	3.0 mm	5.0 mm
Collector Diameter	5.4 mm	5.7 mm	20.0 mm	1.93 mm
Guard Ring Width (Radial)	4.3 mm	4.4 mm	4.4 mm	1.2 mm
Window Material	3.86 mg/cm2 Kapton	A	3.86 mg/cm2 Kapton	7.72 mg/cm2 Kapton
Window or Support Rings, Collector and Guard Material	C552™	A	C552™, D400, or A150	C552™
Nominal Air Kerma Calibration Factor	5.6E+8 Gy/C	3.7E+9 Gy/C	3.0E+7 Gy/C	3.8E+8 Gy/C
Nominal Leakage	+/-10 fA		+/-10 fA	+/-10 fA
Maximum Polarizing Voltage	1000 VDC	1000 VDC	1000 VDC	1000 VDC
Waterproof	Yes, with included 1.0mm PMMA cap	Yes, integral waterproofing cap is polycarbonate, 1.0mm entry window, TG-51 compliant	Yes, with 1.0mm PMMA included cap	No
Included Build-up Cap	None	⁶⁰Co	None	None
Shonka air-equivalent plastic C552 Shonka tissue-equivalent plastic A150 polystyrene-equivalent plastic D400

Exradin® A30 Ion Chamber

Accurate. Durable. Built for Flash.

Engineered to handle the extreme demands of Flash along with conventional dose rate measurements. With an ultra-thin 0.3 mm air gap and rugged construction, it delivers reliable, precise readings when it matters most.

Exradin®

Spherical Ion Chambers

Exradin Spherical Ion Chambers are relied upon worldwide for precise measurement of radiation exposure and exposure rates. They are easily positioned for in-air measurements.


	Exradin® A3 Spherical Ion Chamber, 3.6cc Learn More	Exradin® A4 Spherical Ion Chamber, 30cc Learn More	Exradin® A5 Spherical Ion Chamber, 100cc Learn More	Exradin® A6 Spherical Ion Chamber, 800cc Learn More
Collecting Volume	3.6 cm³	30 cm³	100 cm³	800 cm³
Outside Diameter of Shell	19.6 mm	39.1 mm	63.1 mm	120.4 mm
Inside Diameter of Shell	19.1 mm	38.1 mm	57.2 mm	114.4 mm
Shell Wall Thickness	0.25 mm	0.5 mm	3.0 mm	3.0 mm
Collector Diameter	2.1 mm	4.1 mm	6.5 mm	11.6 mm
Collector Length	13.3 mm	24.9 mm	37.3 mm	74.0 mm
Shell, Collector, and Guard Material	C552™	C552™	C552™	C552™
Nominal Air Kerma Calibration Factor	9.0E+8 R/C	1.1E+8 R/C	3.3E+7 R/C	4.2E+6 R/C
Nominal Leakage	+/-10 fA	+/-10 fA	+/-10 fA	+/-10 fA
Maximum Polarizing Voltage	1000 VDC	1000 VDC	1000 VDC	1000 VDC
Waterproof	No	No	No	No
Integral Build-up Cap	None	None	⁶⁰Co	⁶⁰Co
Shonka air-equivalent plastic C552

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Exradin^® Ion Chambers The purest picture of dose

Thimble Ion Chambers

Exradin® A19 Ion Chamber, Waterproof Classic Farmer, 0.62cc

Exradin® A12 Ion Chamber, Waterproof Farmer Type, 0.64cc

Exradin® A1SL Ion Chamber, Slim Line Miniature Shonka, 0.053 cc

Exradin® A28 Ion Chamber, Scanning, 0.125cc

Micro Ion Chambers

Exradin® A16 Ion Chamber, MicroPoint, 0.007cc

Exradin® A26 Ion Chamber, MicroPoint, 0.015cc

Exradin® A14SL Ion Chamber, Slim Line Microchamber, 0.015cc

Exradin® A14 Ion Chamber, Microchamber, 0.015cc

MR Safe Thimble Ion Chambers

Exradin® A19MR Ion Chamber, Classic Farmer-type, 0.62cc

Exradin® A26MR Ion Chamber, Micropoint, 0.015cc

Exradin® A1SLMR Ion Chamber, Slimline Miniature Shonka, 0.053cc

Exradin® A28MR Ion Chamber, Scanning, 0.125cc

Parallel Plate Chambers

Exradin® A10 Ion Chamber, UltraGuard Markus-type Waterproof Electron Chamber, 0.050 cc

Exradin® A30 Ion Chamber, 0.007 cm3 Ultra Thin Parallel Plate

Exradin® A11TW Ion Chamber, Spokas Thin Window Parallel Plate, 0.93cc

Exradin A20 Low Energy X-Ray Ion Chamber, 0.074cc