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Bubble Technology Industries

Bubble DetectorThe BD-PND is the recommended detector for personal neutron dosimetry.  Its sensitivity exceeds the ICRP-60 requirements for neutron dosimetry.  It incorporates automatic compensation for sensitivity change with temperature over the operational range of 20 – 37 deg C.  Nuclear laboratories, utilities and military personnel have found that the BD-PND’s immediate visual response and high sensitivity, coupled with its small size, light weight and rugged construction make it the ideas device for ALARA programs.

Bubble Detectors are ideal for rapid and accurate measurements in a broad range of applications:

·    Nuclear power stations and nuclear research laboratories (neutron dosimetry and shielding verification

·    Hospitals involved in radiation therapy / nuclear diagnostics (neutron dosimetry and LINAC shielding verification)

·    Airline crew dosimetry and space applications (high altitude neutron dosimetry)

·    Military personnel (neutron dosimetry and hazard detection)

Minimum Order: 2       Your desired Sensitivity ( 0.33 - 33 bubbles per bub/mrem)  must be specified at time of order.

BD-PND Spec Sheet



The BDT Bubble Detector is preferentially sensitive to thermalized neutrons, with an exclusion ration of thermal-to-fast neutron response exceeding 10:1.

BDT Spec Sheet


BDS - Bubble Detector Spectrometer

Bubble Detector SpectrometerThe BDS (Bubble Detector Spectrometer) is based on specially formulated bubble detectors that have different neutron energy thresholds. Similar to fast-neutron activation detectors, the measured spectrum from the BDS is derived by “unfolding” the response of the different detectors of the BDS. Each spectral measurement is made with 36 detectors (6 of each threshold supplied – 10, 100, 600, 1000, 2500, 10000 keV). It has two very important properties – it is completely insensitive to gamma rays allowing it to be used in areas with intense gamma background and since it is passive, it can be used in pulsed radiation fields. The BDS should be used whenever one wants to know something about the energy of the neutron field, especially where the neutron field is only a very small fraction of the total radiation field. The BDS has been used to determine the neutron spectrum in space and is often used in connection with pulsed reactor operations and for assessing the neutron field from medical (or research) accelerators. Detectors can be re-used through recompression in a pressure chamber (available separately from Pulcir, Incorporated).



The RC-18 recompression chamber re-zeros up to 18 Bubble Detectors at a time in approximately 30 minutes.



BDR-III  - Automatic Bubble Reader

Automatic Bubble ReaderThe BDR-III is an affordable solution for automatic counting of large numbers of detectors.  The BDR-III provides barcode-ready, fully automated counting with machine vision technology that generates database compatible files in a compact, simple-to-use instrument.


Mobile Microspec

Mobile MicrospecBubble Technology Industries has developed a spectroscopic mobile system that can be easily mounted on any vehicle platform. This system (called the “MOBILE MICROSPEC”) is ideally suited for pilot based/UAV air and driver based/ROV land platforms. MOBILE MICROSPEC is perfect for rapid and accurate detection of gamma and neutron-emitting materials by a broad range of users (Customs officials; Cargo inspectors; Dock, airline and railway workers; Military personnel; Police, firefighters and EMS personnel; and Radiation monitoring authorities). 

MOBILE MICROSPEC comes in a rugged, waterproof enclosure that can be easily transported. A hard shell case can be supplied as an option for external use with land vehicles, watercraft or aircraft. A ruggedized laptop provides the user with real-time, straight-forward information on the amount of radiation, the identity of the radioisotope and the alarm status. The system conveniently operates from a wide variety of power supplies, including: a built-in rechargeable battery, any external 12 to 32 volt DC power supply (including common batteries and generators) and AC power. The standard system detects both gamma and neutron radiation with spectroscopic capability.

Mobile Microspec Spec Sheet