Physics and Engineering of Radiation Detection

296 Chapter 5. Solid State Detectors of radiation is minimal. When radiation traverses through this region and produces a large ...

5.1. Semiconductor Detectors 297 Supply Reverse Bias n−Type n+ Layer −+ Material p+ Layer Guard Ring Electrode Implant Electrode ...

298 Chapter 5. Solid State Detectors
Charge yield:The number of charge pairs created should be enough to yield a good signal to ...

5.1. Semiconductor Detectors 299 of electron hole pairs in the undepleted region is a major problem. It not only produces non-li ...

300 Chapter 5. Solid State Detectors Just like a semiconductor diode, a semiconductor-metal diode can be produced, which is gene ...

5.1. Semiconductor Detectors 301 K.4 AvalanchePhotodiode..................... Avalanche photodiodes utilize the concept of multi ...

302 Chapter 5. Solid State Detectors precision machinery. Pixel Detectors Pixel detectors are position sensitive devices having ...

5.1. Semiconductor Detectors 303 energy absorbed in the semiconductor and is highly dependent on the type of radi- ation and its ...

304 Chapter 5. Solid State Detectors Example: A 300μmthick silicon detector having a surface area of 8× 10 −^4 cm^2 is placed in ...

5.1. Semiconductor Detectors 305 Nd1 Nd2 Nd1<Nd2 Fluence Eff. Dopant Conc. Figure 5.1.33: Dependence of effective dopant conc ...

306 Chapter 5. Solid State Detectors 5.2 DiamondDetectors............................ The most problematic thing with semiconduc ...

5.2. Diamond Detectors 307 CVD technique involves decomposition of hydrocarbon molecules in gaseous state and then their activat ...

308 Chapter 5. Solid State Detectors we can write τef f≈τext. (5.2.2) 5.2.C DriftofChargePairs....................... The high m ...

5.2. Diamond Detectors 309 in diamond has an approximate temperature dependence of the form (32) μe∝ 1 T . (5.2.3) This profile ...

310 Chapter 5. Solid State Detectors the effective lifetime of a carrier in diamond is dominated by its extrinsic lifetime (see ...

5.2. Diamond Detectors 311 Figure 5.2.3: Variation of resistivity in dif- ferent diamond crystals with respect to ab- solute tem ...

312 Chapter 5. Solid State Detectors about an order of magnitude higher than detectors made of silicon (1). For diamond the main ...

5.3. Thermoluminescent Detectors 313 5.3.A PrincipleofThermoluminescence................ During the discussion on semiconductors ...

314 Chapter 5. Solid State Detectors Problems 1.Show that the probability for an electron to occupy the Fermi level in an intrin ...

5.3. Thermoluminescent Detectors 315 16.A 300μmthick silicon detector having an area of 0.05cm^2 has an initial leakage current ...