The UDR-13 is capable of detecting which measurements?

• A. Detects neutron/gamma radiation dose and gamma dose rate
• B. Handheld
• C. Detects alpha, beta, gamma, and x-ray
• D. 3 probes

Answer: (A)

The key idea is that this device is a dosimeter designed to monitor exposure in mixed neutron and gamma fields and to report the gamma dose rate. It is built to give a neutron/gamma radiation dose and a gamma dose rate, which are the quantities most relevant for assessing cumulative exposure and real-time gamma flux in safety work. The other options describe things that aren’t about what this instrument measures: one suggests a handheld form, another implies detection of a broad set of particles (alpha, beta, gamma, and x-ray) which would require a different, multi-purpose detector, and another simply references having multiple probes. In short, the UDR-13’s strength lies in measuring the dose from neutron and gamma radiation and providing the gamma dose rate, making that choice the best fit.