W B Johnson Instruments
WB Johnson Radiation Instruments
WB Johnson Instruments is now offering a 2 year warranty on all of its products. WB Johnson products are considered to be of the highest quality and a 2 year warranty will further set them apart from the competition. WB Johnson Instruments, formerly WM B. Johnson, was founded in 1955. Mr. William Johnson, a health physicist who attended Purdue University and worked on the Manhattan Project.
In the beginning, our products were mainly specialty instruments and detectors built under contract for the U.S. Navy, including quartz fiber pocket dosimeters and hand held survey meters. In the 1970’s WM. B Johnson developed a significant market for very high range telescoping survey meters (utilized around nuclear reactors) and quartz fiber pocket dosimeters, and thereby obtaining the rights to manufacturer a high quality, flexible alpha scintillator used extensively by government and private laboratories to measure radon and special nuclear materials.
W B Johnson Instruments
Excerpt - WB Johnson AM-801 Radiation Portal Monitor, transportable radiation personnel portal monitor, audible-visual alarms, meets FEMA sensitivity requirements. The WB Johnson AM-801 Radiation Portal Monitor is a transportable radiation personnel portal monitor. It is easily assembled by stacking the sections in less than five minutes. There are no tools required. there are no cables or cable connections. It comes with Voice Operational Commands, Full Color Touch Sensitive graphics panel, and Auto Cal for Maximum Sensitivity. The audible and visual alarms meet or exceed FEMA's sensitivity requirements of 1uCi or less Cs-137 detection.More Information
Excerpt - The Model AM-806 is a ruggedized, industrial grade monitor that can be utilized to detect radioactive material. The 806 utilizes 2 large area plastic scintillators totaling 360 cubic inches to detect the movement of gamma emitting isotopes passing through doorways, entrance gates or other similar openings.More Information
Excerpt - The DSM 500 is a microprocessor-controlled instrument represents the new gold standard of survey instruments. The DSM-500 boasts an oversized digital display and a unique capability for dual probe capability. Comes standard with timed count capability, probe-saturation and error indicators.More Information
Excerpt - The internal 1"x1" plastic scintillator of the DSM 501 has a close to tissue-equivalent response and has an oversized digital backlit display, dose or CPM operation modes and comes standard with timed-count capability, probe-saturation and error indicators.More Information
Excerpt - The DSM-502 Survey meter is designed as the perfect application for general users of radiation measurement and monitoring. It's mid-range internal detector allows for the perfect combination of accuracy, simplicity and functionality for the reliable and consistent measurement of dose.More Information
Excerpt - The DSM-503 Survey meter is rugged and dependable for use in a variety of environments. With its internal detector, this instrument is designed to fit the perfect application for general users of radiation measurement and monitoring. The internal energy compensated gm detector makes this instrument a perfect fit for general users of radiological instruments.More Information
Excerpt - The operation of the DSM-506 provides users the ease of an internal detector with the additional probe capability for those specific measurement needs. This feature, with its easy to read display, digital electronics and rugged design make the 506 a perfect instrument for all applications.More Information
Excerpt - The DSM-525 is the most functional survey instrument on the market with its dual probe capability. This dual connection capability allows users the luxury of multiple level measurements with as many as four different probes calibrated to each measurement type. No more re-tracking to the instrument case to switch probes.More Information
Excerpt - The ERK-525 is a complete, portable radiation monitoring system designed to measure a broad range of radioisotope contamination under field conditions. The system contains a state of the art, microprocessor based digital display meter that auto ranges and can detect most of the common alpha, beta & gamma radiation that is likely to be present in an emergency situation. The DSM-525 is a dual probe survey meter that measures contamination and dose levels from micro-R to 200 mR/hrMore Information
Excerpt - The NORM-PKP includes the DSM-525, a GM Pancake Probe (cpm) and MRSP-1 Plastic Scintillation probe (Dose Rate). The combination of the two probes are perfect for measuring NORM and TENORM radiation. The Pancake and Scintillation probes are both connected to the instrument at the same time so the user can switch between them at any time without having to power the instrument down.More Information
Excerpt - The NORM-PKN includes the DSM-525, a GM Pancake Probe (cpm) and GSP-1 NaI Scintillation probe (Dose Rate). The combination of the two probes are perfect for measuring NORM and TENORM radiation. The Pancake and Scintillation probes are both connected to the instrument at the same time so the user can switch between them at any time without having to power the instrument down.More Information