1.

Record Nr.

UNINA9910710224803321

Autore

Frohnsdorff G

Titolo

Fly ashes in cements and concretes : technical needs and opportunities / / G. Frohnsdorff; J. R. Clifton

Pubbl/distr/stampa

Gaithersburg, MD : , : U.S. Dept. of Commerce, National Institute of Standards and Technology, , 1981

Descrizione fisica

1 online resource

Collana

NBSIR ; ; 81-2239

Altri autori (Persone)

CliftonJames R

FrohnsdorffG

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

1981.

Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.

Title from PDF title page.

Nota di bibliografia

Includes bibliographical references.



2.

Record Nr.

UNINA9910917177703321

Autore

Betz Michael

Titolo

The CERN Resonant WISP Search (CROWS)

Pubbl/distr/stampa

KIT Scientific Publishing, 2014

ISBN

1000039767

Descrizione fisica

1 online resource (XIV, 183 p. p.)

Collana

Karlsruher Forschungsberichte aus dem Institut für Hochleistungsimpuls- und Mikrowellentechnik

Soggetti

Technology: general issues

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Sommario/riassunto

The subject of this work is the design, implementation and first results of the ""CERN Resonant WISP Search"" (CROWS), which probes the existence of Axion Like Particles and Hidden Sector Photons (HSPs) using microwave techniques. By exploiting low loss cavity resonators, multiple layers of electromagnetic shielding and a micro-Hz bandwidth detection scheme, new exclusion limits could be set. For HSPs, sensitivity was improved by a factor of ~7 compared to previous laboratory experiments.