ION CHAMBERS

THE GOLD STANDARD IN ION CHAMBER and kV SENSOR TECHNOLOGY
Radcal’s Model 9095 radiation-monitoring system utilizes a wide range of Radcal ion chambers. The 9095 recognizes the connected sensor and retrieves calibration information from the sensor; there are no user-controlled calibrations required.

The Ion Chambers feature:
Uniform energy response • Wide dynamic range • Proven advanced performance

10X9-6
The General Purpose, in Beam Chamber

The 10X9-6 chamber permits in-beam measurements as described in “Routine Compliance Testing for Diagnostic x-ray systems” (PB89-205215). This chamber is ideal when using the CDRH geometry (the 10T5 test stand).
10X9-6M
The Dedicated Mammography Chamber

Long before the Mammography Quality Assurance Standards Act, Radcal designed what proved to be one of the finest low energy chambers on the market. It’s extraordinary flat energy response over the 10 - 40 keV has been documented in technical papers and makes corrections unnecessary. Unlike solid state detectors, the -6M’s response is not influenced by tube target material or filtration.
10X9-60 & 10X9-60E
The ‘Service’ Chambers

The dynamic range and thin profile of these chambers make them ideal for virtually all X-ray service applications:
• Input Dose at the Image Intensifier
• High dose rates encountered in Fluoroscopy
• Cine, spot film devices & other special procedures
Additionally, the -60E(extended) chamber’s increased sensitivity at lower energies turns the chamber into a “Universal” detector, covering mammography through R&F and beyond. The 8231 holder is recommended.
10X9-3CT
The Chamber for Computed Tomography Dose Index (CTDI)

When used in conjunction with Radcal’s 20CT6 (head phantom) and Radcal’s 20CT14 (body phantom) the 10X9-3CT permits evaluation of the radiation output as prescribed by HHS publication FDA 88-8035. It’s excellent energy, partial volume response and position uniformity has been well documented.
10X9-180
The Leakage and Low Level Measurements Chamber

The 10X9-180 ion chamber is designed for leakage measurements as described in “Regulations for the Administration and Enforcement of The Radiation Control for Health and Safety Act of 1968” (HHS Publication FDA 88-8035), and provides the required effective cross-section of 100 cm2.
10X9-1800
The Radiation Protection Chamber

The 10X9-1800 ionization chamber is intended for low-level radiation measurements such as shielding leakage, irradiator and environmental. Unlike typical survey meters, the 10X9-1800 chamber offers improved accuracy over a wider dynamic range.

CHAMBER OVERVIEW


Chambers
10x9-6
10x9-6M
10x9-60
10x9-60E
Min Rate 1 µR/s 10 nGy/s 1 µR/s 10 nGy/s 100 nR/s. 1.nGy/s same
Max Rate 22 R/s 190 mGy/s 10 R/s 90 mGy/s 2.2 R/s 19 mGy/s same
Min Dose 10 µR 100 nGy 10 µR 100 nGy 1 µR 10 nGy same
Max Dose 79 kR .0.7 kGy 79 kR 0.7 kGy 7.9 kR. .70 Gy same
Cine Specifications 0.1 µR/f - > 1 R/f

1 nGy/f - >10 mGy/f
N/A 0.01 µR/f - > 100 mR/f

0.1 nGy/f - >1.0 mGy/f
same
Calibration Accuracy ±4% using X-rays @ 60kVp and 2.8 mm AL HVL ±4% using X-rays @ 20kVp and 0.26 mm AL HVL

(-60) ±4% using X-rays @ 150kVp and 10.2 mm AL HVL

(-60E) ±4% using X-rays @ 50kVp and 0.88 mm AL HVL

Exposure Rate Dependence ±5%, 0.4 mR/s to 80 R/s, up to 500 R/s for 50 us pulses ±5%, 0.02 R/min to 600 R/min ±5%, 2 mR/min to199 R/min same
Energy Dependence ±5%, 30 keV to 1.33 MeV (with build-up material) ±5%, 10 keV to 40 keV

(-60) ±5%, 20 keV to 1.33 MeV
(with build-up material)

(-60E) ±5%, 0.2 mm AL HVL to 1.33 MeV (with build-up material)

Construction Polycarbonate walls and electrode conductive graphite interior coating; 6 cm3 active volume; 0.05kg 0.7 mg/cm2 metalized polyester window; polyacetal exterior; 6cm3 active volume; 0.08 kg Polycarbonate walls; conductive graphite exterior coating; 60 cm3 active volume, 3 m low-noise triax cable; 0.13 kg same
Chambers
10x9-3CT
10x9-180
10x9-1800
Min Rate 2 µR/s .20 nGy/s 50 nR/s 500 fGy/s 5 nR/s. 50 fGy/s
Max Rate 40 R/s 350 mGy/s 0.6 R/s. 5.3 mGy/s 0.02 R/s.
0.2 mGy/s..
Min Dose 20 µR 200 nGy 200 nR 2 nGy 20 nR . 200 fGy
Max Dose 158 kR 1.4 kGy 2.6 kR 23 Gy 0.26 kR.. 2.3 Gy
Calibration Accuracy ±4% using X-rays @ 150kVp and 10.2 mm AL HVL ±4% using X-rays @ 150kVp and 10.2 mm AL HVL ±4% using X-rays @ 150kVp and 10.2 mm AL HVL
Exposure Rate Dependence ±2%, 2mR/s to 40 R/s ±5%, 20 mR/hr to 2000 R/hr +0%, -5%, 0.1 mR/hr to 20R/hr,
-10% to 65 R/hr
Energy Dependence ±5%, 3 to 20 mm AL HVL ±5%, 30 keV to 1.33 MeV (with build up material) ±5%, 33 keV to 1.33 MeV
Construction C552 air-equivalent walls and electrode: polyacetal exterior cap; 3 cm3 active volume; 2 m, low noise triax cable; 0.11 kg Polycarbonate walls and electrode; conductive graphite exterior coating; 180 cm3 active volume; 0.11 kg Polycarbonate walls and electrode; conducting graphite exterior coating; 1800 cm3 active volume; 0.54 kg
Uniformity Along Length & Partial Volume Exposure ±5%, to within 0.25 cm of chamber ends for a constant volume slice N/A N/A