Geiger Counter Accessories

Bench Stand For the GCA-07 & GCA-06 Series of Geiger Counters

Versatile Bench Top Stand for Your Portable Geiger Counter

Transform Your Portable Geiger Counter into a Hands-Free Laboratory Tool!

Designed specifically for students, educators, and science enthusiasts, this bench top stand turns your portable Geiger counter into a stable, stationary unit perfect for hands-on physics experiments and radiation detection projects. Whether you're conducting experiments in a school lab or working on independent research, this stand enhances usability and precision by keeping the Geiger counter securely in place.

Key Benefits:

Digital Meter Adapter for Analog Geiger Counters

The New Digital Meter Adapter is now a universal expansion module. It is a combination of the original Digital Meter Adapter, RS 232 interface adapter & Random Number Generator Adapter. The new DMAD has all three functionalities in one module to enhance the capabilities of Geiger Counters.

DMAD Digital Readout and Resolution

Countable Pulse Resolution & Range 1 Count Per Minute (CPM) - 9,360 Counts Per Second (CPS)
Radiation Resolution & Range 1.0 uR/hr - 655 mR/hr
(Metric) .01 uSv/hr - 6.5 mSv/hr

Shown with optional stand (not included)

LCD Display 16 character by 2 line LCD (liquid crystal display) with back light provides easy to read output.

May be Purchased as a kit or assembled and tested.

More Information

Geiger Counter Wand

The Geiger Counter wand utilizes a thin mica window GM tube that allows the detection of alpha radiation as well as beta, and gamma radiation. Operating range is 450-600 volts, the recommended voltage is 500 volts.

The physical dimensions of the wand are approximately .85" diameter and 5.75" long. Approximately three feet of shielded cable connects the wand and a mini din plug.

For specifications on the GM Tube used in the GCW-01 see:

Wand info

GM tube specifications

Radiation Shields for Wands

These radiation shields friction fit on the open end of the Geiger Counter wand. Each shield helps to block radiation from reaching the internal GM tube inside the wand.

The shields are useful in performing nuclear tests and experiments.

Radiation shields only compatable with the GCW-01 Wand . The paper shield blocks alpha radiation, while permitting beta and gamma radiation. The aluminum shield attenuates beta radiation and the lead shield attenuates gamma radiation. Shields may be purchased separately or in a set.

Radiation Penetration Calculator

Sled Isotope Holder

The Geiger counter wand base provides a stable platform to hold the Geiger counter wand for experiments. The physical dimensions of the base are 2" wide by 12" long. The length of the base has markings in both metric and imperial.

The sled isotope holder provides a stable and moveable platform for radioactive isotopes 1" diameter discs. The sled isotope holder is available in two sizes:
One that holds 1/8" thick discs and the other to hold 1/4" thick discs.

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Geiger-Muller Tube

Thin mica window detects alpha, beta, and gamma radiation. Operating range is 450-600 volts, the recommended voltage is 500 volts. Recommended anode resistor: 10 megaohms. Gas filling. Neon and halogen. Measures .36" (9.1 mm) wide, 1.6" (40 mm) long.

Detects alpha radiation through the thin mica front window.

Click here for detailed electrical and mechanical characteristics.

Sensitivity

• Alpha above 3.0 MeV
• Beta above 50 KeV
• Gamma above 7 KeV

The geiger tube comes with a black boot to protect the thin mica end window. This boot needs to be removed to detect alpha particles. However, gamma and beta particles will pass through the boot and be detected.

The United States has declared that this product for restricted exporting to foreign countries. It may still be possible, but will require additional information prior to shipping.

Analog Radiation Meter

The Analog Digital radiation meter counts the pulse output of a standard analog Geiger counter. It provides a visual readout of the CPS, approximate radiation level (imperial/metric) and analog radiation field strength meter.

The Analog Digital meter alternates the first line of its display between Counts Per Second (CPS) and then approximate radiation level in either imperial measurements (mR/hr) or metric measurements (mSv/hr). The top line of the display alternates its display every second. The 2nd LCD line is a analog radiation field strength meter that provides a quick visual indication of the current CPS reading.

To fit nicely on the 8 character display line the imperial measurement of mR/hr is abbreviated to mR. Likewise the meteric measurement of mSv/hr is abbreviated to mS.

The second line of the 8x2 LCD is a dedicated analog power meter to read a reasonable approximation of CPS from 1 CPS to 2040 CPS.

Click here to see mounting outline measurements.

Click here to see schematic.

Faceplate For Analog Meter

This faceplate mounts the ADM meter above into the round panel opening of a CDV715 meter. Material is approximately 1/8" thick black plastic.

Spinthariscope

Lead Sheet 12" x 12" x 20 Ga. thick.

Soft lead sheet is easily cut with a standard scissors. Material is soft enough to form and bend around sharp corners. Typically used for lining boxes for storing radioactive materials. 20 Ga. material is 0.0375" thick. Each 12" x 12" sheet weights approximately 2.5lbs.

Lead Shielding Guide

USB TTL Serial Cable

USB TTL Serial Cable allow easy interfacing to devices over USB.

The USB TTL Serial cable provide connectivity between USB and serial UART
interfaces at 5V.

More Information

USB-3.5mm - $24.95
USB TTL Serial Cable

Geiger Counter Apps : Geiger Bot & iGeiger

Geiger Bot is a companion app for Geiger counters, providing you with a toolkit for recording, analyzing, and sharing Geiger counter data.

Whether you need a numeric display for an old analog counter, graphing and extensive logging for even a digital counter, or online automated data sharing via Pachube, Geiger Bot can be of use.

Geiger Bot just works. As soon as you start up the app, Geiger Bot will get to work without any configuration necessary. This is done using adaptive signal processing and your device's microphone input. Geiger Bot also supports a direct line-in connection via the headset jack.

Geigerbot is a free iPhone app. For more info, or to download click here.

iGeiger is a ratemeter program. It uses the microphone to detect the clicks from your geiger counter (or other device) and display the Counts Per Minute (CPM).

The measurement period can be set between 1 and 3600 seconds, and readings can be optionally normalized to one minute (60 seconds). The displayed value is grayed out until an entire measurement period's worth of readings has been accumulated.

The minimum required volume of a click to be detected (threshold) can be set, as well as a delay time between clicks.

iGeiger is an iPhone app. For more info, or to download click here.