Eur. Phys. J. Appl. Phys.
Volume 35, Number 3, September 2006
|Page(s)||211 - 216|
|Section||Instrumentation and Metrology|
|Published online||23 August 2006|
Detector calibration at INM using a correlated photons source*
INM/CNAM, 61 rue du Landy, 93210 La Plaine Saint-Denis, France
Corresponding author: email@example.com
Revised: 8 March 2006
Accepted: 7 April 2006
Published online: 23 August 2006
The correlated photons source is obtained from the parametric down conversion of photons generated in a non linear crystal. When associated with a system of coincidences counting, this source allows one to measure the detection efficiencies of detectors working at photon counting levels, without the need for reference sources or detectors. At the Institut National de Métrologie (France), this method was implemented with the aim of realising a new standard detector for the absolute measurement of very weak radiations. The relative standard uncertainty of the detection efficiency measurements is 1.1%.
PACS: 06.20.-f – Metrology / 42.65.Lm – Parametric down conversion and production of entangled photons / 85.60.Dw – Photodiodes; phototransistors; photoresistors
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.