Document ID (ISN) | 36886 |
CIS number |
82-112 |
ISSN - Serial title |
0002-8894 - American Industrial Hygiene Association Journal |
Year |
1981 |
Convention or series no. |
|
Author(s) |
Griess G.A., Blankenstein M.F. |
Title |
Multiple-pulse laser retinal damage thresholds |
Bibliographic information |
Apr. 1981, Vol.42, No.4, p.287-292. Illus. 12 ref. |
Abstract |
The reduction factor (Cp), the amount by which the single-pulse TLV or maximum permissible exposure is reduced to give the multiple-pulse value, is calculated. Cp can be empirically determined by taking the ratio of threshold dosages for 1 pulse in a pulse train and a single exposure of equal duration. Analytical expressions for Cp may be obtained from theoretical thermal damage models based on physical principles. Using both approaches multiple-pulse additivity was accounted for by a thermal damage model. The multiple-pulse Cp was a function of both pulse repetition frequency and total number of pulses (N). The thermal model did not yield a single, simple expression for Cp, but the empirical 1/N1/4 expression was an adequate approximation. |
Descriptors (primary) |
laser radiation; laser damage thresholds; retinal damage; pulsed lasers |
Descriptors (secondary) |
mathematical analysis; determination of exposure limits |
Document type |
D - Periodical articles |
Subject(s) |
Radiation
|
Broad subject area(s) |
|
Browse category(ies) |
Diseases of the eye and vision damage Lasers Non-ionizing radiation Occupational exposure limits
|