Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Question
Chapter 9, Problem 9.24P
(a)
To determine
The value of resistor, to be placed in series with the ion chamber
(b)
To determine
The time constant of detector circuit.
(c)
To determine
The time required to read 99% of the saturation current
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Using Table 10-3, answer the following:a. What should the wire-feed speed and voltageranges be to weld 1/8-in. (3 mm) metal with 0.035-in.(0.90-mm) wire using argon shielding gas?b. What should the amperage and voltage range be using 98% Ar + 2% O2 to weld 1/4-in. (6-mm) metal with0.045-in. (1.2-mm) wire?
Assume that the gate oxide between an n+ poly-Si gate and the p-substrate is II A thick and Na = lEI8 cm3. (a) What is the VI of this device? (b) What is the subthreshold swing, S? (c) What is the maximwn leakage current if W = I µm. L = 18 nm? (Assume Ids = 100 W/L (nA) at Vg = Vt.)
Assume the same lifetime and processes occur in a lasing material that has a threshold
current density of 1000A/cm? with a carrier lifetime (for an uncontaminated material) of
Ins. (Hint: look at rate equation for relationship between Im and t)
c) If the material is contaminated with Au to a level of about 1018/cm', what is the new
total carrier lifetime?
d) What would the new threshold current density be?
Chapter 9 Solutions
Introduction To Health Physics
Ch. 9 - Prob. 9.1PCh. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - Prob. 9.4PCh. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - Prob. 9.9PCh. 9 - Prob. 9.10P
Ch. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - Prob. 9.13PCh. 9 - A counting system has a background of 360 counts...Ch. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - Prob. 9.31PCh. 9 - Prob. 9.33PCh. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Prob. 9.38PCh. 9 - Prob. 9.39PCh. 9 - Prob. 9.44P
Knowledge Booster
Similar questions
- Given that the current density J = xyz (2 x ax - 4 y ay - 3 z az) amperes per square meter, determine the amount of current, in milliamperes, passing through the surface x = 1 m, -4 < y < 8, -9 < z < 1. All coordinates are measured in millimeters. Express your answers accurate to four decimal places, whenever applicable.arrow_forwardWhat are the pros and cons of a CZT detector over an HPGe detector in terms of energy resolution, counting efficiency (considering the typical size of the detectors), cooling requirement, complexity (from the user’s point of view), portability, size and mass, etc.? What is your expectation for the market of the room-temperature semiconductor detectors for the next 10 years?arrow_forwardThe exchange current density of Pt/ H;, H' (aq) is 0.79 mA/em. What current will flow through standard hydrogen electrode (SHE) when the potential drop across the electrode is 5 mV (n= 5 mV) at 298K? (Hint: solve Butler-Volmer Equation for very small n case) Incaarrow_forward
- In a common emitter configuration, base current of 0.9 milliamperes and emitter current of 5.48 milliamperes is flowing in the circuit. Calculate the value of the collector current in milliamperes. (write the value only) Answer:arrow_forwardShow all working A particular electronic-code. lock provides over 500 billion Combinations. Moreover, it can Sustain an electric shock of 128334V. Suppose this potential difference is applied accross series connection of the following. resistors: 14.8K5, 34.8K2, and 205.0 k 2. klhat current would pass through the resistors? Question 2 to (b) A light bulb in a computer Camper's flashlight is labeled 8.9v, 0.29A. Find the equivalent Current if three of these light bulbs connected in paralle! are Standard C Size 1.5V to a battery. (round to 4 decimal place)arrow_forwardBy using spherical electrodes with the diameter D=50cm, the following breakdown voltages are measured at 18°C air temperature and 770mmHg pressure. a) If gap is equal to 7.4cm, calculate the breakdown voltage at normal conditions (20°C, 760mmHg). b) Calculate the real breakdown voltage for 1% relative measurement error (T=18°C, P=770mmHg). c) Calculate the capacitance of the electrode system with the diameter D=50cm and the gap a=7.4cm. What is the value of the resistance (R) which leads minimum 1% relative error (H) during the measurement of breakdown voltage? Çapı D=50cm olan küresel elektrotlar kullanarak 18°C sıcaklıkta ve 770mmHg hava basıncında tabloda verilen delinme gerilimleri ölçülmüştür. a) Elektrot açıklığı 7.4cm ise normal şartlar altında (20°C, 760mmHg) delinme gerilimini hesaplayınız. b) Gerçek delinme gerilimini %1 bağıl hata için hesaplayınız (T=18°C, P=770mmHg). c) D=50cm çap ve a=7.4cm elektrot açıklığına sahip elektrot sistemi için kapasite değerini…arrow_forward
- I need the answer as soon as possiblearrow_forward(a). A Si bar 0.1 um long and 100 u,m2 in cross-sectional area is doped with1017 cm- 3 phosphorus. Find the current at 300 K with 10 V applied.Repeat for a Si bar 1 fjun long,?(b). How long does it take an average electron to drift 1 |xm in pure Si at anelectric field of 100 V/cm? Repeat for 105 V/cm.?arrow_forwardThe hole density n silicon is given by p() 10 e WPx>0)where L-2x 10 cm Assume the hole diffusion coefficient is D.8 cm/s. Determine he hole dif. fusion current density at (a) X 0, (b) x2× 10 cm, and (c) x 10om.arrow_forward
- How deep will (a) 10 keV e-beam penetrate intosilicon and (b) 50 keV beam into quartz?.arrow_forwardBy using spherical electrodes with the diameter D=50cm, the following breakdown voltages are measured at 18°C air temperature and 770mmHg pressure. a) If gap is equal to 7.4cm, calculate the breakdown voltage at normal conditions (20°C, 760mmHg). b) Calculate the real breakdown voltage for 1% relative measurement error (T=18°C, P=770mmHg). c) Calculate the capacitance of the electrode system with the diameter D=50cm and the gap a=7.4cm. What is the value of the resistance (R) which leads minimum 1% relative error (H) during the measurement of breakdown voltage?arrow_forwardGiven a 5mm-diamtere sample wire, 7m long, in which a current of 175 mA passes throught it. A voltage of 25V is measured across this sample when the two probes of the VOM are separated 3000 mm. Determine: A. the electrical conductivity of this wire B. the resistance over the entire length of this wire.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning