Professional Records
License Records
William L. Punchard
License #:
25230929 - Expired
Category:
Contractor
William Punchard Phones & Addresses
-
Concord, MA
-
207 Goodmans Hill Rd, Sudbury, MA 01776
-
Newton, MA
Resumes
Resumes
Senior Staff Scientist At Resonance Research
View pageBusiness Records
Name / Title
Company / Classification
Phones & Addresses
Principal
Fmp Supply, LLC
Whol Durable Goods
Whol Durable Goods
32 Scotland Blvd, East Bridgewater, MA 02324
Manager
Johnstone Supply of Bridgewater
Whol Heat/Air Cond Equipment/Supplies
Whol Heat/Air Cond Equipment/Supplies
32 Scotland Blvd, East Bridgewater, MA 02324
15 Scotland Blvd, East Bridgewater, MA 02324
(508) 279-1661
15 Scotland Blvd, East Bridgewater, MA 02324
(508) 279-1661
Publications
Us Patents
High Magnetic Field Gradient Strength Superconducting Coil System
View pageUS Patent:
8275429, Sep 25, 2012
Filed:
Apr 8, 2011
Appl. No.:
13/083020
Inventors:
Shahin Pourrahimi - Brookline MA, US
Nadder Pourrahimi - Waltham MA, US
William Frederick Punchard - Sudbury MA, US
Piotr Marian Starewicz - Somerville MA, US
Nadder Pourrahimi - Waltham MA, US
William Frederick Punchard - Sudbury MA, US
Piotr Marian Starewicz - Somerville MA, US
Assignee:
Stern Magnetics, LLC - Billerica MA
International Classification:
H01B 12/00
US Classification:
505211
Abstract:
High magnetic field gradient strength superconducting coil systems for use in medical applications are provided. Systems capable of providing time-varying gradient magnetic field strength greater than 50 mT/m, over a spherical volume with a diameter greater than 20 centimeters include superconducting gradient coils and a heat conduction assemblage in physical contact with each coil.
Methods And Apparatus For Post-Exposure Determination Of Ionizing Radiation Dose
View pageUS Patent:
20040251899, Dec 16, 2004
Filed:
Dec 8, 2003
Appl. No.:
10/731552
Inventors:
Harold Swartz - Lyme NH, US
William Punchard - Sudbury MA, US
Piotr Starewicz - Somerville MA, US
Tadeusz Walczak - Hanover NH, US
William Punchard - Sudbury MA, US
Piotr Starewicz - Somerville MA, US
Tadeusz Walczak - Hanover NH, US
International Classification:
G01V003/00
US Classification:
324/316000
Abstract:
The instant invention provides in-vivo methods and apparatus for radiation dosimetry assessment in individuals exposed to potentially harmful radiation, based on measurements in-situ of the teeth. The in vivo dosimetry assessment methods and apparatus utilize electron paramagnetic resonance (EPR) techniques; and employ an apparatus comprising an integrated EPR spectrometer system, an ergonomic magnet and a constructed resonator structure. In various aspects, the dosimetry assessment apparatus is configured to be easily portable and withstand potentially adverse mechanical effects of transportation and deployment in the field. The apparatus also is configured with a power supply that is compatible with both conventional AC line voltages and/or other sources of power suitable for field conditions; and may be easily operated by minimally trained technicians to quickly generate a readout of estimated radiation exposure dose.
Shim Insert For High-Field Mri Magnets
View pageUS Patent:
20110260727, Oct 27, 2011
Filed:
Apr 6, 2011
Appl. No.:
13/066075
Inventors:
William F.B. Punchard - Sudbury MA, US
Kai-Ming Lo - Westford MA, US
Piotr M. Starewicz - Somerville MA, US
Hoby Hetherington - Woodbridge CT, US
Kai-Ming Lo - Westford MA, US
Piotr M. Starewicz - Somerville MA, US
Hoby Hetherington - Woodbridge CT, US
International Classification:
G01R 33/32
US Classification:
324318
Abstract:
The present invention is a portable in-bore shim coil insert suitable for correcting high-degree and high-order magnetic field inhomogeneities over a limited examination zone in a magnetic resonance assembly operating above 3 T magnetic field strengths, wherein the magnetic resonance assembly includes at least a MRI magnet having an internal bore of known configuration and volume, at least one set of gradient coils, and an arrangement of radio frequency coils. The in-bore shim coil insert and corresponding method of use is able to produce higher degree and order shimming effects on-demand (i.e., the correction of at least some 3to 6degree field terms or inhomogeneities) and will markedly improve the quality of in-vivo magnetic resonance spectroscopy and/or imaging of any desired anatomic site, i.e., any or all of the various organs, tissues, and systems present in the body of a living subject.