Joseph E Lavelle

US Patent:

42477727, Jan 27, 1981

Filed:

Jun 22, 1978

Appl. No.:

5/918044

Inventors:

Joseph E. Lavelle - Wellesley MA
James L. Munroe - Nonantum MA

Assignee:

Jersey Nuclear-Avco Isotopes, Inc. - Bellevue WA

International Classification:

H01J 3700

US Classification:

250423P

Abstract:

A system for correcting misalignment and divergence in a long, propagating beam of radiation as is typically applied through a plurality of chambers to produce isotopically selective photoexcitation in a system for isotope separation. The corrective apparatus comprises a reflective relay system placed at predetermined intervals along the path of propagation of the radiation where correction of alignment and/or divergence are required. The reflective relay includes a concave mirror employed to correct divergence and which receives radiation directed at it by a first plane reflective surface which in turn responds to the radiation on the path of propagation. The concave mirror reflects toward a second plane mirror which in turn reflects the radiation back onto the path of beam propagation with correction of alignment and divergence. The first and second plane reflecting surfaces are adjustable on both tilt and position to permit alignment correction in both angle and displacement of the propagating beam of radiation.

US Patent:

41115317, Sep 5, 1978

Filed:

Jun 16, 1976

Appl. No.:

5/696693

Inventors:

Joseph E. Lavelle - Wellesley MA
James L. Munroe - Nonantum MA

Assignee:

Jersey Nuclear-Avco Isotopes, Inc. - Bellevue WA

International Classification:

G02B 510

US Classification:

350293

Abstract:

A system for correcting misalignment and divergence in a long, propagating beam of radiation as is typically applied through a plurality of chambers to produce isotopically selective photoexcitation in a system for isotope separation. The corrective apparatus comprises a reflective relay system placed at predetermined intervals along the path of propagation of the radiation where correction of alignment and/or divergence are required. The reflective relay includes a concave mirror employed to correct divergence and which receives radiation directed at it by a first plane reflective surface which in turn responds to the radiation on the path of propagation. The concave mirror reflects toward a second plane mirror which in turn reflects the radiation back onto the path of beam propagation with correction of alignment and divergence. The first and second plane reflecting surfaces are adjustable on both tilt and position to permit alignment correction in both angle and displacement of the propagating beam of radiation.