I decided to try one of these guys out. I must say I am very happy with it so far. It is well made and has a ton of options. These range in price, but I have seen them go on e-bay from $200-$600.
Here is a little info on the units.
From first responders dealing with radiation emergencies to environmental monitoring and remediation personnel, Thermo Scientific radioactivity detectors and radiation monitoring devices provide high performance measurement of radiation and radionuclide analysis for any scenario. Eberline Asp - 1 Manual Radiological Dosimetry, NE-Technology Precision Dosimetry Catalog, 1999. Analog Smart Portable Technical Manual, Eberline Model ASP-1, 1997. Rad Studio Xe 2 Keygen.
The Eberline ASP-1 is a microcomputer based portable radiation measuring instrument.
Meter:
Dual scales, lower scale indicates from 0-2500 volts (in 50-volt steps).
Upper scale represents radiation being measured. The meter scale is a simple 1.0 so there are no odd or uneven scales to read. The meter also has a battery condition mark to indicate when the batteries should be changed.
Range:
Meter:
Dual scales, lower scale indicates from 0-2500 volts (in 50-volt steps).
Upper scale represents radiation being measured. The meter scale is a simple 1.0 so there are no odd or uneven scales to read. The meter also has a battery condition mark to indicate when the batteries should be changed.
Range:
A nine position rotary switch is used to turn the unit on, check battery voltage, check the high voltage,and select a range of operation.
The full-scale count is between approx 20 cpm and 3 million cpm, true count rate from the detector. It has 6 multiplier scales of X100,X1K,X10K,X100K,and an unbelivable 1 million and 10 million scales achieved through digital processing.
There is also a slow-fast-integrate response switch. In the fast position, the response time is selected by the computer for typical survey work. When the slow position is selected, the response time is made longer for a steadier reading. In the integrate position, the meter shows the total radiation detected since the last time it was reset to zero.
This instrument also has dead time correction of none to 254 microseconds in 2 microsecond steps typical dead time for gm is up to 100 microseconds depending on the probe and 2-10 microseconds for scintillation probes as they recover faster.
Dead time compensation is a giant step forward in probe responce and accuracy as the electronics compensate for the probes slowness to recover from event to event. Eberline Asp 1 Manual Pdf
HIgh voltage ouput:
The high voltage can be set directly on the meter and ranges from 300-2,500 volts with no load and up to +1600 volts with a 100 MOhm (or more) load.
This instrument also has adjustable threashold of 2-50 millivolts as well as gain adjustment that pretty well eliminates any preamplifier unless the probe cable is extremly long.
Connector:
MHV series coaxial
Input Sensitivity:
Input sensitivity is adjustable from 1mV to 50mV.
The full-scale count is between approx 20 cpm and 3 million cpm, true count rate from the detector. It has 6 multiplier scales of X100,X1K,X10K,X100K,and an unbelivable 1 million and 10 million scales achieved through digital processing.
There is also a slow-fast-integrate response switch. In the fast position, the response time is selected by the computer for typical survey work. When the slow position is selected, the response time is made longer for a steadier reading. In the integrate position, the meter shows the total radiation detected since the last time it was reset to zero.
This instrument also has dead time correction of none to 254 microseconds in 2 microsecond steps typical dead time for gm is up to 100 microseconds depending on the probe and 2-10 microseconds for scintillation probes as they recover faster.
Dead time compensation is a giant step forward in probe responce and accuracy as the electronics compensate for the probes slowness to recover from event to event. Eberline Asp 1 Manual Pdf
HIgh voltage ouput:
The high voltage can be set directly on the meter and ranges from 300-2,500 volts with no load and up to +1600 volts with a 100 MOhm (or more) load.
This instrument also has adjustable threashold of 2-50 millivolts as well as gain adjustment that pretty well eliminates any preamplifier unless the probe cable is extremly long.
Connector:
MHV series coaxial
Input Sensitivity:
Input sensitivity is adjustable from 1mV to 50mV.
Speaker: Eberline Asp 1 Manual Diagram
The Eberline ASP-1 is a microcomputer based portable radiation measuring instrument.
Meter:
Dual scales, lower scale indicates from 0-2500 volts (in 50-volt steps).
Upper scale represents radiation being measured. The meter scale is a simple 1.0 so there are no odd or uneven scales to read. The meter also has a battery condition mark to indicate when the batteries should be changed.
Range:
A nine position rotary switch is used to turn the unit on, check battery voltage, check the high voltage,and select a range of operation.
The full-scale count is between approx 20 cpm and 3 million cpm, true count rate from the detector. It has 6 multiplier scales of X100,X1K,X10K,X100K,and an unbelivable 1 million and 10 million scales achieved through digital processing.
There is also a slow-fast-integrate response switch. In the fast position, the response time is selected by the computer for typical survey work. When the slow position is selected, the response time is made longer for a steadier reading. In the integrate position, the meter shows the total radiation detected since the last time it was reset to zero.
This instrument also has dead time correction of none to 254 microseconds in 2 microsecond steps typical dead time for gm is up to 100 microseconds depending on the probe and 2-10 microseconds for scintillation probes as they recover faster.
Dead time compensation is a giant step forward in probe responce and accuracy as the electronics compensate for the probes slowness to recover from event to event. Eberline Asp 1 Manual Pdf
HIgh voltage ouput:
The high voltage can be set directly on the meter and ranges from 300-2,500 volts with no load and up to +1600 volts with a 100 MOhm (or more) load.
This instrument also has adjustable threashold of 2-50 millivolts as well as gain adjustment that pretty well eliminates any preamplifier unless the probe cable is extremly long.
Connector:
MHV series coaxial
Input Sensitivity:
Input sensitivity is adjustable from 1mV to 50mV.
Speaker: Eberline Asp 1 Manual Diagram
A speaker countdown circuit permits dividing the speaker rate by 16, 64, or 256 The speaker is housed in an acoustic compression chamber that will accept typical headphones
Batteries:
6 C-cell.
Eberline Asp 1 Manual Transmissions Included are a few pictures, I borrowed a few as my cameras macro feature is horrible.
Meter:
Dual scales, lower scale indicates from 0-2500 volts (in 50-volt steps).
Upper scale represents radiation being measured. The meter scale is a simple 1.0 so there are no odd or uneven scales to read. The meter also has a battery condition mark to indicate when the batteries should be changed.
Range:
A nine position rotary switch is used to turn the unit on, check battery voltage, check the high voltage,and select a range of operation.
The full-scale count is between approx 20 cpm and 3 million cpm, true count rate from the detector. It has 6 multiplier scales of X100,X1K,X10K,X100K,and an unbelivable 1 million and 10 million scales achieved through digital processing.
There is also a slow-fast-integrate response switch. In the fast position, the response time is selected by the computer for typical survey work. When the slow position is selected, the response time is made longer for a steadier reading. In the integrate position, the meter shows the total radiation detected since the last time it was reset to zero.
This instrument also has dead time correction of none to 254 microseconds in 2 microsecond steps typical dead time for gm is up to 100 microseconds depending on the probe and 2-10 microseconds for scintillation probes as they recover faster.
Dead time compensation is a giant step forward in probe responce and accuracy as the electronics compensate for the probes slowness to recover from event to event. Eberline Asp 1 Manual Pdf
HIgh voltage ouput:
The high voltage can be set directly on the meter and ranges from 300-2,500 volts with no load and up to +1600 volts with a 100 MOhm (or more) load.
This instrument also has adjustable threashold of 2-50 millivolts as well as gain adjustment that pretty well eliminates any preamplifier unless the probe cable is extremly long.
Connector:
MHV series coaxial
Input Sensitivity:
Input sensitivity is adjustable from 1mV to 50mV.
Speaker: Eberline Asp 1 Manual Diagram
A speaker countdown circuit permits dividing the speaker rate by 16, 64, or 256 The speaker is housed in an acoustic compression chamber that will accept typical headphones
Batteries:
6 C-cell.
Eberline Asp 1 Manual Transmissions Included are a few pictures, I borrowed a few as my cameras macro feature is horrible.