DISCONTINUED MODELS

Specifications for reference only

THE STANDARD FOR X-RAY COMPLIANCE
MEASUREMENTS IN THE US AND ABROAD

The typical applications for the 1015C, 1015F (US FDA version), and 1515 radiation monitors include diagnostic x-ray, fluoroscopy, cine, gamma sources, and reactors. (See Highlights below)

The monitors use 10X5 series air-equivalent ion chambers and the readings are corrected automatically for chamber volume.
A current-to-frequency converter and digital-processing techniques are used to measure:

  • Exposure rate
  • Exposure (integrated)
  • Pulse exposure
  • Pulse duration

Highlights
1015C, 1015F

  • Automatic temperature compensation
  • Front panel setting for automatically correcting the reading for the set barometric pressure
  • Stored radiation waveform may be viewed by connecting an oscilloscope to the BNC connector
  • 1015F is described in "Routine Compliance Testing for Diagnostic X-Ray Systems" (PB89-205215).

1515

  • Automatic temperature compensation
  • Automatic barometric pressure compensation
  • Microprocessor-based version of the 1015-series monitors
  • In pulse mode, all measurements can be made with just one exposure
  • Peak dose rate can be read out, as well as the time at all threshold settings
  • Remote communication is possible via the RS-2332 serial port. Full external control is available except for power on/off and calibration adjustments
  • Rechargeable battery pack provides up to 100 hours of portable operation
  • Dynamic range may be extended using the High-Sensitivity converter

Specifications

System Measurement Modes (See ion chamber specifications)

1015C
1515
Exposure Rate: 0.1 mR/h to 650 kR/h 0.01 mR/h to 180 kR/min
Exposure (integrated): 0.2 µR to 9.99kR 0.01 µR to 1400 kR
Pulse Exposure: .02 mR to 13 R 0.01 mR to 13 R
Pulse Duration: 0.1ms to 99.9s 0.2ms to 26.2 s
Display: 3 digit, liquid crystal
autoranging over full scale		 3 _ digit, liquid crystal
autoranging over full scale
Size: 10.0" X 13.0" X 8.5" 10.0" X 13.0" X 8.5"
Detector Bias: 300 V Battery
(1 year nominal life)		 300 V Battery
(1 year nominal life)
Weight: 15 lbs. 15 lbs
Power: 4 each D Cells
Anticipated life 750 hrs		 Rechargeable Battery Pack
100 hour nominal operation
Transformer Input: 120 VAC, 60 Hz,6 W
Transformer Output: 12 VAC, 250 mA
System Measurement Accuracy (at 25°C and 1 atmosphere)
Energy Dependence: See ion chamber specifications
Exposure Rate Dependence: See ion chamber specifications
Calibration: See ion chamber specifications
Pulse Amplitude Uncertainty:
Discrimination Level: 5% rms
Pulse-Duration Accuracy: ±5 ms or ±1% (whichever is larger)
System Operating Environment
Temperature: 5°C to 45°C
Humidity: Up to 95% RH, without condensation
Barometric Pressure: 600 to 1050 mb

Optional Features

Option D (Cable Disconnect)
A connector is provided in the 20 foot cable which permits the user to operate the equipment in locations which utilize a wall pass-thru. The Cable Disconnect is standard on the 1515.

Option G (Audible Search Assist)
The Audible Search Assist permits the radiation monitor to be used as an audio analog meter during initial survey procedures. An earphone is supplied which plugs into the convertor.


Option H (10C5-10 Extension Cable)
This multi-conductor cable is the same as the cable built into the radiation monitor. Option D (Cable Disconnect) is required to use this cable. It is not recommended that more than two extension cables be used, but custom cables of longer lengths are available (consult the factory).

IONIZATION CHAMBERS

All Radcal ion chambers are designed to provide the user with superior response characteristics, unparalleled in the industry. The resulting chamber accuracy and consistent reliability are well documented in the technical literature 1-5.

 The Commission of the European Communities undertook what proved to be the largest, most comprehensive intercomparison of diagnostic dose-meters ever done. Our meters, because of their ease of use and linear energy response, were found to provide the users with consistently good results. Please ask us for your free copy.

CHAMBER SELECTION
Connector
Contains the chamber factory calibration as well as the chamber volume information for the detector. This provides chamber interchangeability between instruments without re-calibration.

CHAMBERS

1. 10X5-6 4. 10X5-60 7. 10X5-1800
2. 10X5-6M 5. 10X5-60E 8. 10X5-0.6
3. 10X5-3CT 6. 10X5-180 9. 10X5-0.18

Click on each item listed and it will link to the proper specifications.

 

10X5-6
GENERAL PURPOSE, IN BEAM CHAMBER

The 10X5-6 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).

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 1 mR/min to 650 R/min 1 mR/min to 5.4 K R/min 0.1 mR/min to 600 R/min
Exposure (Integrated): 0.02 mR to 99.9 R 0.02 mR to 42.0 kR 0.001 mR to 42 kR

Pulse Exposure:		 0.02 mR to 13 R 0.02 mR to 13 R 0.01 mR to 5.0 R

Pulse Duration:		 0.1 ms to 99.9 s

0.2 ms to 26.2 s

 0.2 ms to 26.2 s
Pulse Resolution: 0.02 mR, 0.1 ms 0.02 mR 0.1 ms 0.01 mR, 0.1 ms
Single Pulse: N/A Histogram of time dependent exposure rate.
Noise: 1 mR/min,rms 1 mR/min,rms 0.1 mR/min,rms
Resolution: 1% or 0.02 mR
1 mR/min & 0.1 ms		 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±4% using moderately-filtered X-rays @ 60 kVp & 2.8 mm Al HVL
Energy Dependence: ±5%, 30 keV to 1.33 MeV (with build-up cap)
Exp Rate Dependence: ±5%, 0.02 to 1000 R/min, up to 500 R/s for 10ms pulses
Construction: Polycarbonate walls and electrode; conducting graphite interior coating; 6cm3 active volume; 0.05kg

10X5-60 & 10X5-60E
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 (xtended) 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.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 0.1 mR/min to 65 R/min 0.1 mR/min to 540 R/min 0.01 mR/min to 60.0 R/min
Exposure (Integrated): 0.002 mR to 9.99 R 0.002 mR to 4.2 kR 0.1 µR to 4.2 kR
Noise: 0.2 mR/min,rms 0.2 mR/min,rms 0.02 mR/min,rms
Resolution: 1% or 0.002 mR
0.1 mR/min 		0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy (-60): ±4% using moderately-filtered X-rays @ 150 kVp & 10.2 mm Al HVL
Calibration Accuracy (-60E): ±4% using moderately-filtered X-rays @ 50 kVp & 0.88 mm Al HVL
Energy Dependence (-60): ±5%, 20 keV to 1.33 MeV (with build-up material)
Energy Dependence (-60E): ±5%, 0.2mm AL HVL to 1.33 MeV (with build-up material)
Exp Rate Dependence: ±5%, 2mR/min to 199 R/min
Construction: olycarbonate walls; conducting graphite exterior coating; 60 cm3 active volume; 3 m low-noise triax cable; 0.13kg

10X5-6M
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.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 1 mR/min to 650 R/min 1 mR/min to 5.4 K R/min 0.1 mR/min to 600 R/min
Exposure (Integrated): 0.02 mR to 99.9 R 0.02 mR to 42.0 kR 0.001 mR to 42 kR
Pulse Exposure: 0.02 mR to 13 R 0.02 mR to 13 R 0.01 mR to 5.0 R
Pulse Duration: 0.1 ms to 99.9 s 0.2 ms to 26.2 s 0.2 ms to 26.2 s
Pulse Resolution: 0.02 mR, 0.1 ms 0.02 mR 0.1 ms 0.01 mR, 0.1 ms
Single Pulse: N/A Histogram of time dependent exposure rate.
Noise: 1 mR/min,rms 1 mR/min,rms 0.1 mR/min,rms
Resolution: 1% or 0.02 mR
1 mR/min & 0.1		 ms 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±4% using lightly-filtered X-rays @ 20 kVp & 0.26 mm Al HVL
Energy Dependence: ±5%, 10 keV to 40 keV
Exp Rate Dependence: ±5%, 0.02 R/min to 600 R/min
Construction: 0.7 mg/cm2 metalized polyester window; polyacetal exterior; 6 cm3 active volume; 0.08kg

10X5-180
LEAKAGE AND LOW LEVEL
MEASUREMENTS CHAMBER

The 10X5-180 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.

Specifications

 
Model 1015
Model 1515
   
1050U converter 		1550 converter
Exposure Rate: 1 mR/h to 650 R/h 1 mR/h to 10.80 kR/h 0.1 mR/h to 1200 R/h
Exposure (Integrated): 0.002 mR to 9.99 R 0.001 mR to 1400 R 0.1 µR to 1400 R
Noise: 1 mR/h,rms 1 mR/h,rms 0.2 mR/h,rms
Resolution: 1% or 0.002 mR 1 mR/h 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±3% using moderately-filtered X-rays @ 150 kVp & 10.2 mm Al HVL
Energy Dependence: ±5%, 30 keV to 1.33 MeV (with build-up material)
Exp Rate Dependence: ±5%, 20 mR/h to 2000 R/h
Construction: Polycarbonate walls and electrode; conducting graphite exterior coating; 180 cm3 active volume; 0.11kg

10X5-1800
RADIATION PROTECTION CHAMBER
The 10X5-1800 ionization chamber is intended for low level radiation measurements such as shielding leakage, irradiator and environmental. Unlike typical survey meters, the 10X5-1800 chamber offers improved accuracy over a wider dynamic range.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 0.1 mR/h to 65 R/h 0.1 mR/h to 1080 R/h 0.01 mR/h to 120 R/h
Exposure (Integrated): 0.2 µR to 999 mR 0.1 µR to 140 R 0.01 µR to 140 R
Resolution: 1% or 0.2 µR 0.1 mR/h 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±4% using moderately-filtered X-rays @ 150 kVp & 10.2 mm Al HVL

Energy Dependence:		 ±5%, 33 keV to 1.33 MeV (with build-up material)
Exp Rate Dependence: +0%, -5%, 0.1 mR/hr to 20 R/hr, -10% to 65 R/hr
Construction: Polycarbonate walls and electrode; conducting graphite exterior coating, 1800 cm3 active volume; 0.54kg

10X5–3CT
CHAMBER FOR
COMPUTED TOMOGRAPHY DOSE INDEX (CTDI)

When used in conjunction with Radcal’s 20CT6 (head phantom) and Radcal’s 20CT14 (body phantom) the 10X5-3CT 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.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 2 mR/min to 1300 R/min 1mR/min to 10.8 kR/min 0.1 mR/min to 1200 R/min
Exposure (Integrated): 0.04 mR to 200 R 0.04 mR to 84.0 kR 0.001 mR to 84.0 kR
Noise: 2 mR/min,rms 2 mR/min,rms 0.3 mR/min,rms
Resolution: 1% or 1 digit 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±4% using moderately-filtered X-rays @ 150 kVp & 10.2 mm Al HVL
Energy Dependence: ±5%, 3 - 20 mm Al HVL
Exp Rate Dependence: ±2%, 2 mR/s to 40 R/s average
Partial Volume Response: ±5% to within 0.25 cm of chamber ends for a constant volume slice
Construction: C552 air-equivalent walls and electrode; polyacetal exterior cap; 3 cm3 active volume; 0.11kg

10X5-0.6
THERAPY QA CHAMBER

This high dose rate chamber provides an excellent response at therapy and other high energy, high dose rate applications. The fully guarded chamber is mounted at the end of a 12 m low noise triax cable.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 10 mR/min to 999 R/min 0.01 R/min to 54 kR/min 0.001 R/min to 6.0 kR/min
Exposure (Integrated): 0.2 mR to 999 R 0.2 mR to 420 kR 0.01 mR to 420 kR
Noise: 0.02 R/min,rms 0.02 R/min,rms 0.02 R/min,rms
Resolution: 1% or 0.2 mR
10 mR/min 		0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±3% using 60Co
Energy Dependence: ±5%, 40 keV to 1.33 MeV (with build-up cap)
Exp Rate Dependence: ±2%, 0.6 R/min to 6 kR/min
Construction: C552 air-equivalent walls and electrode; polyacetal exterior cap; 0.6 cm3 active volume; 0.28kg

10X5-0.18
HIGH DOSE-RATE CHAMBER

The 10X5-0.18 ion chamber is intended for in-beam measurements of high-intensity gamma radiation. It is suitable for cavity gamma irradiators as well as beam type irradiators. The fully guarded chamber is mounted at the end of a 3 meter, low-noise triax cable.

Specifications

 
Model 1015
Model 1515
    1050U converter 1550 converter
Exposure Rate: 1 R/h to 650 kR/h 0.01 R/min to 180 kR/min 0.001 R/min to 20 kR/min
Exposure (Integrated): 0.002 R to 9.99 kR 0.001 R to 1400 kR 0.1 mR to 1400 kR
Noise: 1 R/h,rms 1 R/h,rms 0.1 R/h,rms
Resolution: 1% or 0.002 R 1 R/h 0.5% or 1 digit 0.5% or 1 digit
Calibration Accuracy: ±4% using 60Co
Energy Dependence: ±5%, 45 keV to 1.33 MeV
Exp Rate Dependence: ±2%, 10 R/hr to 650 kR/hr
Construction: C552 air-equivalent walls and electrode; polyacetal exterior cap; 0.18 cm3 active volume; 0.1kg1
  1. Radiation Protection Dosimetry, Volume 43, No. 1/4, Studies On the Performance of Diagnostic Air Kerma Meters in the US, L.K. Wagner
  2. Radiation Protection Dosimetry, Volume 43, No. 1/4, Diagnostic Dosimeter Intercomparison, Commission of European Communities
  3. Medical Physics, 17(6), Nov/Dec 90, On the measurement of HVL in Film Screen Mammography, L.Wagner, F. Cerra, B. Archer
  4. Health Physics Journal, Vol 37 (Dec), pp. 773-774, Evaluation of the MDH Industries, Inc, Pencil Chamber for Direct Beam CT Measurements, William Pavlicek, John Horton, Robert Turco
  5. Measurement of Radiation for X-ray Computed Tomography Using Pencil-Shaped Ionization Chambers, R.M. Gagne, T.B. Shope, J.L. McCrohan and C.K. Showalter