Optical Data Processor Using Computer Generated Hologram For High Energy Physics Experiments

J. Gresser; P. Ambs

doi:10.1117/12.937144

26 October 1983 Optical Data Processor Using Computer Generated Hologram For High Energy Physics Experiments

J. Gresser, P. Ambs

Proceedings Volume 0437, Intl Conf on Computer-Generated Holography; (1983) https://doi.org/10.1117/12.937144
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

In high energy physics experiments, pattern recognition in digital or analog data, is a current technical problem. Considerable effort is expended in these experiments in the development of real time and high speed decision making logic which is used as a rapid filter to enrich data samples with events of desired character. Optical processing techniques are a novel approach to this problem. It offers the advantage of parallel data treatment with a decision speed within 100 ns depending on the optoelectronic devices. A Prototype device was constructed in conjunction with a high energy physics experiment at Brookhaven National Laboratory in which the input data are transformed into an optical pattern through an array of LED's. The device is an incoherent correlator with a kinoform filter; The results are presented and discussed. Other applications are possible in which a computer generated hologram, like a kinoform, acts as an optical element which transforms points on a curve into parameters of that curve. This can solve a major problem in particle physics which is to recognize straight lines in parallel plate detectors. The recent progress and development of Ring Imaging Cerenkov Detectors need to detect a pattern on which the photons are disposed on a circle. It does appear that a great deal in the high energy physics will involve the production of jets. By driving light sources whose intensity is proportional to particle energy and by using a filter which contains geometrical informations, it is possible to calculate variables relating directly to jets, in real time.

Citation Download Citation

J. Gresser and P. Ambs "Optical Data Processor Using Computer Generated Hologram For High Energy Physics Experiments", Proc. SPIE 0437, Intl Conf on Computer-Generated Holography, (26 October 1983); https://doi.org/10.1117/12.937144

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available