The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented. The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented.
Disciplines
Engineering Physics | Physics
Comments
This is a manuscript of an article from Nuclear Instruments and Methods in Physics Research
Using computers and the Internet to alleviate or reduce loneliness and social isolation and using online methods of data collection in the forms of online surveys and chat room interviews are in their infancy and require a descriptive qualitative study of the experiences of older adults who are online. The purpose of this pilot study was twofold: (1) to describe the experiences of completing an online questionnaire and participating in an online interview and (2) to determine if the methodology of collecting interview data in a chat room setting can yield thick rich qualitative data to support future qualitative investigations into the Internet's potential use as a deterrent to social and emotional isolation. This study used a Web page questionnaire and chat room interviews with online participants aged 65 years and older living alone. Seven of the 10 participants used the computer to combat loneliness. The participants found the questionnaire easy to locate, answer, and submit. They enjoyed the chat and believed that future interviews could be conducted on the Internet. The participants successfully completed the online questionnaire and chat room interviews with minimal difficulties attributed to a conflict with their Internet service provider. Themes evolving from the interviews were: computer life, online life, living alone, and living life.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.