SuperMAX Electrometer

A versatile chamber library is built into the SuperMAX interface, so no additional PC or software is necessary to apply system factor and temperature/pressure corrections. These factor applied measurements are even displayed in real-time side by side with raw measurement values for increased analysis capability. Over 100 different chambers and calibrations can be stored within the SuperMAX internal memory. Individual factors can be applied to either or both measurement channels.

The SuperMAX Electrometer features two measurement channels with independent control over range, bias voltage, and applied system factor. Both channels feature extensive range (0.001 pA to 500.0 nA, 0.001 pC to 999.9 �C) for use in a wide range of applications such as cross calibration between two chambers, isocenter versus off-axis and in-air versus in-water comparisons. The SuperMAX is designed to maximize flexibility encouraging the freedom to experiment with its measurement capabilities.

The 6.4� color TFT display has a built-in touchscreen to make measurement control and data entry intuitive and enjoyable. Measurement values are shown with large type and corrected values are shown in a different color for easy viewing and confirmation of settings, even from a distance. An on-screen keypad and familiar pull down menus makes entry of settings such as bias voltage, threshold detection settings, and chamber library data nearly effortless.

Features and Benefits

Versatile Charge Collection Modes

Triggered collection with automatic start, stop, and saving of data
Threshold detection levels programmable for both high and low range
Timed collection from 1-600 seconds, set in 1 second increments
Continuous Collection with manual start and stop
Built-in speaker provides audible alert to completion of

Measure with Confidence

Ready in less than 2 minutes after power on; The SuperMAX has been designed to minimize warm up time and make a stable, repeatable measurement whenever called upon
Designed to exceed AAPM, ADCL, and reference grade instrument specifications
Reference class electrometer according to IEC 60731

Powerful Data Management

Store up to 100 different chamber/system factors in the built-in chamber library, each with unique calibration
Measurement data can be exported to .csv format as easily as saving a word processing document. The included USB flash drive can be used to transfer measurement data to a PC for further analysis.
Create a database of sources and calculate projected source strength with the Check Source Utility

Superior Flexibility

User-updatable software and firmware allows for future SuperMAX updates
The adjustable handle accommodates comfortable operation and viewing angle if operator is sitting or standing

Applications

External Beam IMRT
LDR or HDR Brachytherapy
Two channel operations such as cross calibration between two chambers, isocenter versus off-axis, and in-air versus in-water comparisons
Any task where a high quality reference grade electrometer is required

Supermax (REF 90018) specifications

Display Range
RATE:	Low Range 0.001 pA � 500.0 pA, 1 fA resolution
	High Range 0.001 nA � 500.0 nA, 1 pA resolution
CHARGE:	Low Range 0.001 pC � 999.9 �C, 1 fC resolution
	High Range 0.001 nC � 999.9 �C, 1 pC resolution
Charge Collections
TRIGGER:	Automatic start, stop, reset and save data based on user defined thresholds (Start: 0.2 � 9.9 pA; Stop: 0.1 � 9.8 pA)
TIMED:	Automatic start, stop, reset and save data based on user defined thresholds (Start: 0.2 � 9.9 pA; Stop: 0.1 � 9.8 pA)
CONTINUOUS:	Unlimited duration with manual stop
Real Time Clock
	Date and time stamp for all measurements for easy identificator
Internal Memory
	Store preferences, >100 sources, >100 chamber/system factors
Range Switching
	User selectable � high or Low
Repeatability
	� 0.1% (IEC 60731 requirement: � 0.5%)
Long-Term Stability
	� 0.5% (over one year)
Stabilization Time
	� 0.1% (IEC 60731 requirement: � 0.5% of value at 1 hr for measurements taken at 15 min and 6 hrs)
Response Time
	< 2 s on high range (IEC 60731 requirement: < 3 s)

Non-Linearity
	� 0.25% (IEC 60731 requirement: � 1.0%)
Conformity
	93 / 42 / EEC Reference class according to IEC 60731
Zero Drift
	� 0.25% (IEC 60731 requirement: � 0.5%)
Display
	6.4" color TFT, touchscreen
Input
	(2) BNC two lug, triaxial connector
Bias Voltage
	Nominal � 1000 volt bias
User Settings:	� 1000 to � 100, 0; 100 to 1000 (set in 1 volt increments)
Accuracy:	� 0.3 volt
Power
	100-240 VAC, 0.5 A max, 50/60 hz input to external power supply, 9 VDC, 1.7 A power supply output to electrometer input, UL/TUL listed power supply
Zeroing
	Automatic zero function, user activated
Output
	(2) USB ports
Dimensions
	Height: 8.1 cm, 3.2 in; Width: 26.7 cm, 10.5 in
	Length: 21.1 cm, 8.3 in; Weight: 1.4 kg, 3.0 lbs
Options
	SupermAX Accessory Kit (REF 72245) Includes extra stylus, extra USB flash drive, and set of 5 extra screen protectors

Specifications subject to change without notice.

SuperMAX Electrometer

ADVANCED DOSIMETRY

Features and Benefits