Why choose Radiation Alert® detectors?
Designed and manufactured in the USA Trusted by professionals worldwide Wide range of detectors for every application Optional NIST‑traceable calibration Free software for data logging and analysis
Can a radiation detector identify radioactive materials?
Basic detectors → detect radiation only Advanced systems (MCA/spectroscopy) → identify isotopes
What level of radiation is dangerous?
Risk depends on dose over time, not a single reading. General guidance: Normal: background range Elevated: above background Concerning: sustained elevated readings Dangerous: high dose rate over time
Which radiation detector should I choose?
It depends on your application: Basic monitoring → GM detector High sensitivity → scintillation detector Personal safety → dosimeter Fixed installations → area monitor Isotope identification → spectroscopy (MCA)
What do µSv/hr, mR/hr, and CPM mean?
µSv/hr / mR/hr → radiation dose rate (exposure level) CPM / CPS → number of detected radiation events CPM = raw activity µSv/hr = biological impact
What is normal background radiation?
Typical background radiation levels: ~0.05 to 0.20 µSv/hr ~5–50 CPM (varies by detector) Background radiation comes from: Space (cosmic rays) Soil and building materials Natural environmental sources Variations depend on: Altitude Geography Materials (granite, etc.)
How Does a Scintillation Detector Work?
Step‑by‑Step Process 1. Radiation enters the detector Incoming radiation (usually gamma or X‑rays) enters a special crystal, such as: NaI(Tl) (sodium iodide with thallium) CsI, LaBr, etc. 2. The crystal produces a flash of light (scintillation) When radiation interacts with the crystal: It transfers energy to the material The crystal emits a tiny flash of […]
What Makes Scintillation Detectors Special?
1. Very high sensitivity They detect far weaker radiation levels than Geiger counters. Example: GM detector → baseline sensitivity NaI scintillator → 10–100× more sensitive 2. Energy measurement capability Unlike most GM detectors: Scintillators can measure how much energy each event had This enables: Isotope identification Spectroscopy (with systems like URSA II) 3. Faster response […]
What Is The Single Most Important Insight For Radiation Detectors?
No single detector does everything perfectly. GM = versatile Scintillator = sensitive Dosimeter = personal safety MCA = analysis That’s why professionals often use multiple instruments together.
Can radiation detectors identify isotopes?
Only advanced systems can. Device Capability GM detector No identification Scintillator Limited indication Spectroscopy (URSA II) Yes Identifying isotopes requires: Energy spectrum analysis Multi-channel analyzer (MCA)