A) Geiger–Müller counter B) Radiation pulse meter C) Townsend detector D) Ionization stabilizer
A) Detecting infrared radiation B) Measuring magnetic fields C) Generating nuclear energy D) Detecting and measuring ionizing radiation
A) X-rays and infrared rays B) Neutrons and dark matter C) Only alpha particles D) Alpha, beta, and gamma rays
A) 1908 B) 1895 C) 1928 D) 1950
A) 1935 B) 1915 C) 1928 D) 1908
A) Massachusetts Institute of Technology B) University of Berlin C) University of Manchester D) University of Cambridge
A) Hall effect B) Photoelectric effect C) Doppler effect D) Townsend discharge effect
A) Oxygen, nitrogen, or carbon B) Hydrogen, methane, or propane C) Xenon, krypton, or radon D) Helium, neon, or argon
A) 400–900 volts B) 50–100 volts C) 100–200 volts D) 1000–2000 volts
A) Conducting catalyst B) Quenching mixture C) Ionization retardant D) Voltage stabilizer
A) It cannot detect alpha particles B) It requires radioactive samples to operate C) It is not a portable device D) Measuring high radiation rates
A) Robust sensing element and low cost B) Ability to identify the exact isotope C) Zero maintenance requirements D) Infinite battery life
A) Continuous discharge occurs B) The gas solidifies C) The tube freezes D) The sensor becomes more sensitive
A) Data sonification B) Quantum computing C) Digital imaging D) Wireless data transmission
A) Semiconductor diode B) Scintillation crystal C) Ionization chamber D) Geiger–Müller tube
A) Calibration display B) Energy display C) Counts display D) Dose rate display
A) Counts per second B) Counts per minute C) Sievert D) Hertz
A) The detector ignores the counts and measures energy directly B) The user manually calculates the energy conversion C) Electronics apply known factors specific to the instrument D) The tube automatically detects the particle energy
A) Manual data logging only B) Serial communications C) Mechanical ticker tape D) Analog pulses only
A) Ion chamber instruments. B) Thin-walled windowless tubes. C) End-window Geiger counters. D) Pancake probes.
A) Glass. B) Mica. C) Aluminum. D) Lead.
A) Within 1 meter. B) Within 50 mm. C) Within 10 mm. D) Within 100 mm.
A) Withstand high pressure environments. B) Detect only high energy gamma rays. C) Operate without a window membrane. D) Provide a larger detection area.
A) The magnetic field of the tube. B) The size of the power supply. C) Atmospheric pressure against the window membrane. D) The weight of the mica.
A) They are smaller than Geiger counters. B) They are cheaper than Geiger counters. C) They do not require electricity. D) They can provide particle energy information.
A) The window blocks all information. B) The output pulse magnitude is always the same. C) The gas inside reacts to all radiation equally. D) The circuitry is too simple.
A) Aluminum B) Lead C) Stainless steel D) Copper
A) Wall interaction B) Direct gas ionization C) Photoelectric effect D) Neutron capture
A) About 1% B) About 10% C) About 50% D) About 99%
A) Xenon B) Argon C) Neon D) Boron trifluoride
A) A vacuum chamber B) A plastic moderator C) A lead shield D) A steel sleeve
A) Helium-3 B) Hydrogen-1 C) Carbon-14 D) Helium-4
A) Single-handed operation B) Lower power consumption C) Better radiation shielding D) Greater detector sensitivity
A) Integral design B) Two-piece design C) Flexible conduit design D) Pancake probe design
A) A pancake probe B) A long pole probe C) A Mica-coated probe D) A cylindrical probe
A) National Radiological Protection Board B) University of Manchester C) Health and Safety Executive D) Atomic Energy Research Establishment
A) Sidney H. Liebson B) Walther Müller C) John Sealy Townsend D) Ernest Rutherford
A) John Sealy Townsend B) Walther Müller C) Hans Geiger D) Sidney H. Liebson
A) 1908 B) 1947 C) 1928 D) 1990
A) Higher operating temperatures B) Faster response to light C) Much longer life D) Ability to detect neutrons
A) Lower operating voltages B) Higher operating voltages C) They made the tubes significantly larger D) They eliminated the need for gas |