Best Selling Books by C. M. Huddleston

Greg’s already time traveled once. It worked out okay. This time, well it’s not so good, since it’s 1778 in Kentucky! The Indians are hostile, Greg’s not sure how to get back to his time, and things are only getting worse. Despite all his attempts, his situation is growing more grim each day. Jump back with Greg in this adventure filled with history, humor, and a whole lot of action! Children''s Literary Classics awarded Greg''s Second Adventure in Time a Gold Medal for Historical Fiction and its Seal of Approval: Greg, a bright, inquisitive and extremely talkative young boy, is not at all pleased when his family moves to Kentucky for his father''s job. He would prefer to be spending his summer with his best friend, Rose. But instead, his mom has volunteered him to participate in an 18th century reenactment in which he must wear a period costume that is far from comfortable. Greg has traveled in time before, but he''s not quite sure how. So, when he finds himself once again back in time, surrounded by five Indians with tomahawks and war paint, he''s not entirely sure what to make of the situation. Having learned a thing or two from his previous time travel experiences, he''s less afraid and better equipped to maintain a sense of calm as he faces the Indians who have just killed and scalped a man bearing a satchel with letters dated from the summer of 1778. Author C.M. Huddleston''s Greg''s Second Adventure in Time brings history to life as Greg explores our country''s new frontier in colonial Kentucky. Action and adventure abound in this deliciously entertaining read that is likely to spur a keen interest in young readers, as history takes center stage in the continuation of this delightful series. This book is recommended for home and school libraries and has earned the Literary Classics Seal of Approval.

A semiempirical formula is developed which yields values for the differential dose albedo of gamma rays on concrete. Gamma rays of incident energies 0.2, 0.5, 1.0, 2.0, 4.0, 6.0, and 10.0 Mev are considered. Results of the formula are compared with values derived from Monte Carlo calculations for the backscattering of gamma rays from a semi-infinite slab of concrete. Results show that a two-parameter formula gives satisfactory agreement with the Monte Carlo calculations. The principal assumption involved in the theoretical analysis is that the actual reflection process can be approximated by two terms, one involving a single Compton scattering event, and the other involving isotropic scattering. (Author).

The effect of ground roughness on the radiation field above ground that has been contaminated with fallout from the explosion of a nuclear device was investigated on three types of Nevada terrain: (1) a flat dry-lake bed, (2) semirough terrain or land that has a known and controlled degree of roughness, and (3) typical wild desert. A modified Navy 5-ton six-wheel-drive truck was used as a mobile laboratory. A collimator and a scintillation crystal with a 512 channel analyzer were used to measure gamma-ray spectra at various polar angles. Dose-vs.-height measurements were also made up to a height of 40 ft. The project was undertaken to determine the importance of ground roughness as a factor in radiation shielding.

"Caintuck Lies Within My Soul" is a masterful, historical biography that presents the story of Jemima Boone, Daniel''s daughter. Written in novel form, C.M. Huddleston relates the thrilling story of Jemima''s life, especially her dream of moving west of the Appalachian Mountains to live on America''s first frontier.

Leah''s Story tells of an African-American girl born on a rice plantation, who grows up serving her rich owners in Georgia. Her life, like so many others, could have ended there were it not for a bit of education and Emancipation, which gave her, and later her children, opportunities to fulfill their dreams. Told in journal form, taken down by the mysterious "Miss Elliott," Leah''s personal history comes to life like the tiny birds she carves, revealing a lifetime of love and opportunity amidst a culture filled with hardship, pain, and loss. C.M. Huddleston wrote Leah''s Story with teens in mind, but the book has readers from ages ages from 13 to 96.

Greg''s First, Second, and Third Adventure books combined into one volume

Greg and Rose make a dynamic time-traveling team. So, the evil, artifact-stealing Pirate separates them, leaving Rose in the present and Greg stranded in the past. A mystery ensues as Rose must find Greg in time, literally in the past, all while Greg, his family, and friends struggle to survive. Come explore the mid-nineteenth century and our nation''s westward expansion, as more time-traveling individuals join this time-searching enterprise. This hair-raising fourth installment in C.M. Huddleston''s Adventures in Time series provides older middle-grade to young adult readers, and history lovers of all ages with an authentic journey through the West, all while entertaining with humorous escapades and time jumps to remember! Come join Greg, his family and friends on this adventure they''ll never forget.

Contents: Gamma Ray Streaming through Ducts; Energy Spectrum Measurements; Calculations of Duct Streaming; Differential Dose Albedo.

Finally, the theory is used to predict the results of an experiment where differential angular exposure measurements were made behind a vertical wall, with the wall exposed to Co60 radiation originating from a moving source pumped over finite horizontal areas on the surface of the ground. Theoretical and experimental values of differential exposure are compared, with remarkably good agreement (~10%).

It is known that a method based on the concept of a Markov chain can be used to treat the problem of absorption, transmission, and backscatter when single-velocity neutrons are incident on a plane slab of finite thickness, under the assumption that scattering is isotropic in the laboratory system (see AD-640 260). Such conditions can exist when neutrons impinge on a slab of material, such as a shield or an inside wall of a shelter entranceway. Since the Markov matrix method is a new approach to the problem, the practical limits in applying the method have not previously been explored. This report outlines the region of usefulness of the matrix method. The solutions to some sample problems are given. Comparisons are made with other theoretical treatments. It is concluded that the Markov matrix method is useful over a wide region of interest. Within its limits of practical applicability, the method gives highly exact answers without requiring exorbitant computing time. (Author).

An intercomparison is made between the results of Monte Carlo calculations and two independent experimental determinations of values for the differential dose albedo of gamma rays on concrete. The validity of a semiempirical formula for gamma-ray albedo is examined. Information is presented on the current status of our knowledge of gamma-ray albedo, and the direction of future work is indicated.

A survey is presented of the current status of experimental and theoretical investigations of the problem of gamma-ray streaming through air ducts in concrete. Data are tabulated and plotted for a variety of experiments. Comparisons are made between theory and experiment, inconsistencies are pointed out, and areas needing further investigation are indicated.

Treatments of the differential dose albedo of gamma rays on concrete have supposed that the albedo value is a function of: the energy of the incident gamma radiation, the polar angle of incidence, the polar angle of reflection (or scatter), and the azimuthal angle of reflection. It is demonstrated here that, if certain reasonable assumptions are made regarding the mechanism of reflection, it is not necessary to investigate variations in albedo with azimuthal angle or reflection. Once differential dose albedo has been determined for a complete set of incident and reflected polar angles with zero azimuth, albedo at any azimuth can be derived by a suitable transformation.