Transcriber’s Notes: Underscores “_” before and after a word or phrase indicate _italics_ in the original text. Equal signs “=” before and after a word or phrase indicate =bold= in the original text. Illustrations have been moved so they do not break up paragraphs. Typographical and punctuation errors have been silently corrected. Army Pulse Radiation Facility [Illustration] Contents Page No. The Concept 3 The Facility 5 The Reactor 7 Exposure Locations and Performance Levels 11 APRF User Support Facilities 17 Instructions to Potential Users 20 Table I. APRFR Core Design Data 8 Table II. Typical APRFR Performance Levels 8 Table III. APRFR Fluence and Flux Data 13 Table IV. Nominal APRFR Leakage and U235 Fission Spectra 13 Table V. Fluence-to-Dose Conversion Factors for APRFR Leakage Neutrons 14 Table VI. Kerma and Kerma Rate in Tissue for APRFR Exposure Conditions 14 Table VII. Kerma and Kerma Rate in Silicon for APRFR Exposure Conditions 15 Table VIII. Neutron-to-Gamma Dose Ratios 15 Table IX. APRF User Support Equipment 18 Army Pulse Radiation Facility _U.S. Army Ballistic Research Laboratories_ AMXRD-BTD _Aberdeen Proving Ground, Maryland 21005_ [Illustration: Army Pulse Radiation Facility Location Map] [Illustration] The Concept The Army Pulse Radiation Facility (APRF) is designed to meet an Army need for a facility located near the Eastern Seaboard capable of providing large fast neutron and gamma radiation doses within microseconds. This fast pulse radiation capability is necessary for the determination of transient responses of materiel in nuclear environments. The APRF increases Army capability by providing improved simulation of radiative effects of a nuclear burst for studies of Army interest, and provides a facility for testing Army materiel. Because of its location, the APRF economically and efficiently serves the heavy concentration of Army agencies and contractors located along the Eastern Seaboard.