Resumes
Resumes
Michael Dalterio Phones & Addresses
-
New Castle, NH
-
Byfield, MA
-
Haverhill, MA
-
Newburyport, MA
-
60 Walton Aly, Portsmouth, NH 03801 (603) 433-1319 (603) 433-9060
-
31 Highland St, Portsmouth, NH 03801
-
Hampton, NH
-
Webster, MA
-
Kittery, ME
Publications
Us Patents
Method For Measurement Of Spotsize And Edgewidth In Electron Beam Lithography
View pageUS Patent:
46755284, Jun 23, 1987
Filed:
Jun 28, 1985
Appl. No.:
6/750081
Inventors:
Guenther O. Langner - Westford MA
Kenneth J. Harte - Carlisle MA
Michael J. Dalterio - Sudbury MA
Marvin Fishbein - Jerusalem, IL
Kenneth J. Harte - Carlisle MA
Michael J. Dalterio - Sudbury MA
Marvin Fishbein - Jerusalem, IL
Assignee:
Control Data Corporation - Minneapolis MN
International Classification:
G01N 2700
US Classification:
250396R
Abstract:
The technique of measuring the spotsize and edgewidth of an electron beam by incrementally scanning the beam through discrete scan locations across a sharp edge is improved by processing the resulting beam current signals directly rather than the differentiated beam current signal. A linear regression is performed on beam current data points expected to fall in the linear portion of the beam current versus beam position characteristic in order to provide a linear approximation of the overall characteristic. Extrapolation of the linear function to its intersections with the maximum (I. sub. 1) and minimum (I. sub. 0) beam current levels yields corresponding beam positions Z. sub. B and Z. sub. A, such that (Z. sub. B -Z. sub. A) is a measure of spotsize in the scan direction.
Method And Apparatus For Measuring Radiation Dose Distribution
View pageUS Patent:
56357095, Jun 3, 1997
Filed:
Oct 12, 1995
Appl. No.:
8/542066
Inventors:
Alan P. Sliski - Lincoln MA
Michael Dalterio - Sudbury MA
Donald O. Smith - Lexington MA
Michael Dalterio - Sudbury MA
Donald O. Smith - Lexington MA
Assignee:
Photoelectron Corporation - Waltham MA
International Classification:
G01D 1800
US Classification:
2502521
Abstract:
A phantom apparatus for measuring the radiation dose distribution produced by a brachytherapy device used to treat a localized area with radiation. The brachytherapy device includes an insertable probe capable of producing predefined radiation dose geometries about a predefined point. The phantom apparatus includes a tank containing a medium having a radiological equivalent characteristic of the localized area to be treated. The phantom apparatus also includes a radiation sensor for measuring the radiation dose and a positioning system for moving the probe with respect to the radiation sensor. The radiation sensor is also coupled to a positioning system to orient the sensor for optimal dose measurements. The phantom apparatus includes a control system that coordinates the movements of the probe and the radiation sensor to avoid a collision. The control system moves the probe along a predefined path around radiation sensor and records the dose at predefined points along the path.