PocketMagic

Fixing a CDV700 dosimeter can be difficult because original replacement components are not an easy find.

by Radu Motisan | May 16th, 2013 | Tags: cdv700, dosimeter, failure, geiger counter, repair, Victoreen | Category: Electronics, Hardware, High Voltage, Nuclear | Leave a comment

This page has been created to report unusual activity (radiation, temperature, humidity, luminosity, barometric pressure), as recorded by the uRADMonitor, including all the debug data to support the results. I cannot guarantee the measurement precision, I merely present the data recorded by the instruments.

by Radu Motisan | January 31st, 2013 | Tags: abnormal, atypical, automated, barometric pressure, dosimeter, environmental radiation surveillance, geiger counter, geiger muller, humidity, monitoring, radiation, radiation data, radiation monitor, SBM-19, sensors, temperature, uradmonitor, weather station | Category: Electronics, Hardware, Nuclear, Research | Comments (2)

Some of these tubes contain small quantities of Cesium-137, Cobalt-60, Radium-226, Krypton-85. The radioactive elements have been added to increase the electronic response by improving the internal ionization processes.

by Radu Motisan | December 30th, 2012 | Tags: 11TN40, 1B22, 1B26, 313CD, EII-43-100, Geiger, geiger counter, JAN-346B, JAN-4C35, JAN-8370, MA340, radioactiv, radioactivity, TG-77, tubes, vacuum tube | Category: Electronics, Hardware, High Voltage, Nuclear, Tubes | Comments (5)

A digital dosimeter design that can be used with multiple geiger tubes, constructed around the atmega8 microcontroller and a 2×16 LCD. Equipped with a radio Bluetooth module for remote operation.

by Radu Motisan | December 1st, 2012 | Tags: atmega8, bluetooth, digital, diy, dosimeter, dosimetry, geiger counter, geiger muller, homemade, microcontrollers, SBM-19, SBM-20, STS-1 | Category: Electronics, Hardware, Nuclear | Comments (11)

I’ve developed the uRADMonitor as an Environmental Radiation Surveillance automated monitoring device. Data is gathered in real time, 24/7, and is exported via the Internet to a database online. The data is available in customizable charts for analysis.

by Radu Motisan | October 21st, 2012 | Tags: automated, barometric pressure, dosimeter, environmental radiation surveillance, geiger counter, geiger muller, humidity, microcontrollers, monitoring, radiation, radiation data, radiation monitor, SBM-19, sensors, temperature, weather station | Category: Electronics, Hardware, Nuclear, Research | Comments (53)

A story of making a DIY Digital Geiger counter circuit, that can be used with several tubes. Add an enc28j60 Ethernet module and use the data to create graphs available online!

by Radu Motisan | October 11th, 2012 | Tags: BG-08, BG08, dosimeter, dosimetry, G-15H, G-21H, geiger counter, pancake geiger tube, SBM-19, SBM19, sensitive geiger tube, SI-1, SI-12B, SI-14B, SI-22, SI14G, SI22G, STS-1, STS-3, STS-6, STS-8, tubes | Category: Electronics, Hardware, High Voltage, Nuclear, Tubes | Comments (19)

This geiger counter circuit features a regulated high voltage supply, with adjustable output. It can run on a single AA battery (1.5V)

by Radu Motisan | January 8th, 2012 | Tags: geiger counter | Category: Electronics, Hardware, Nuclear | Comments (2)

A digital counter using CD4026 for fast event counting as those from Geiger Muller tubes or scintillation probes.

by Radu Motisan | December 22nd, 2011 | Tags: CD4026, geiger counter, scintillation, scintillator | Category: Electronics, Hardware | Comments (18)

An article presenting a simple DIY Geiger Muller counter using the Russian tube SI-22G and a single transistor regulated inverter that puts out 400V, as required by the tube. A very basic detector assembled in 5 minutes. See an operation comparison to the Radex RD1706.

by Radu Motisan | March 21st, 2011 | Tags: dosimeter, geiger counter, geiger muller, homemade, radex, radiation, RD1706, SI-22G | Category: Electronics, Hardware, Nuclear | Comments (41)

The DRSB-01 is a simple Geiger Counter device that can be used to detect normal vs. dangerous levels of ionizing radiation (gamma and beta).

by Radu Motisan | August 11th, 2010 | Tags: dosimeter, geiger counter | Category: Electronics, Hardware, High Voltage, Nuclear, Reviews | Comments (6)

The CDV700 dosimeter variant 6B (newer) and a few mods to improve functionality: audio connector and bnc connector.

by Radu Motisan | July 20th, 2010 | Tags: audio mod, bnc mod, cdv700, dosimeter, geiger counter, Victoreen | Category: Electronics, Hardware, High Voltage, Nuclear, Reviews | Comments (3)

A highly sensitive pancake geiger muller tube, the Russian CI14B/SI14B

by Radu Motisan | July 12th, 2010 | Tags: geiger counter, pancake geiger tube, sensitive geiger tube, si14b, tubes | Category: Electronics, Hardware, High Voltage, Nuclear, Tubes | Comments (15)

A short review on the Radex RD1706 dosimeter, how good it is, and how can it be compared to other dosimeters, eg. the Terra-P MKS-05.

by Radu Motisan | April 27th, 2010 | Tags: dosimeter, geiger counter, RD1706 | Category: Hardware, High Voltage, Nuclear, Reviews | Comments (4)