IP Library Granted Patent US 8,829,457
Granted Patent B2
US 8,829,457 · App. 13/418,178 · Granted Sep 9, 2014

Ultraviolet radiation detector and dosimeter

Inventors: Craig F. Smith (Incline Village, NV); Vladimir Ryzhikov (Kharkov, UA); Sergei Naydenov (Kharkov, UA); Dennis Wood (Los Altos, CA); Volodymyr Perevertailo (Kiev, UA)
Assignees: Lawrence Livermore National Security, LLC.; Vladimir Ryzhiko; Dennis Wood; Sergei Naydenov; Volodymyr Perevertailo
H01L31/108H01L31/02162G01J1/429
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Quick Facts
Patent No.
US 8,829,457
App. No.
13/418,178
Granted
Sep 9, 2014
Kind
B2
Abstract

An ultraviolet radiation dosimeter apparatus for measuring an individual's ultraviolet radiation exposure from incoming ultraviolet rays, including an ultraviolet radiation dosimeter body; an ultraviolet filter in the ultraviolet radiation dosimeter body; a detector semiconductor substrate in the ultraviolet radiation dosimeter body connected to the ultraviolet filter for detecting the incoming ultraviolet rays and producing a signal, the semiconductor substrate made of ZnSe(Te), and a chip in the ultraviolet radiation dosimeter body for receiving the signal and measuring the individual's ultraviolet radiation exposure from the incoming ultraviolet rays.

Claims (14)

1. An ultraviolet radiation dosimeter for measuring and recording UV-A 315-400 nm radiation and UV-B 275-315 nm radiation from incoming ultraviolet rays, consisting of:

a dosimeter body,

a diffuser in said dosimeter body for receiving and diffusing the incoming ultraviolet rays,

an ultraviolet filter in said dosimeter body connected to said diffuser for filtering UV-A 315-400 nm radiation and UV-B 275-315 nm radiation from the incoming ultraviolet rays,

a semiconductor detector made of ZnSe(Te) in said dosimeter body connected to said ultraviolet filter that receives the UV-A 315-400 nm radiation and UV-B 275-315 nm radiation from the incoming ultraviolet rays and produces signals,

amplifiers for amplifying said signals,

a chip that receives said signals for measuring and recording the UV-A 315-400 nm radiation and the UV-B 275-315 nm radiation from the incoming ultraviolet rays,

a controller connected to said chip, and

a display connected to said chip, wherein said chip is controlled by said controller and wherein said display displays said signals.

2. A method of measuring and recording an individual's UV-A 315-400 nm radiation and UV-B 275-315 nm ultraviolet radiation exposure from incoming UV-A 315-400 nm radiation and UV-B 275-315 nm radiation ultraviolet rays, consisting of the steps of:

filtering the ultraviolet UV-A 315-400 nm radiation and UV-B 275-315 nm radiation producing filtered ultraviolet UV-A 315-400 nm radiation and UV-B 275-315 nm radiation;

using a semiconductor detector made of ZnSe(Te) for detecting said filtered UV-A 315-400 nm radiation and UV-B 275-315 nm ultraviolet radiation and producing a signal,

using a chip connected to said semiconductor detector that is controlled by a controller for receiving and recording said signal and measuring the individual's ultraviolet UV-A 315-400 nm radiation and UV-B 275-315 nm radiation exposure from the incoming UV-A 315-400 nm radiation and UV-B 275-315 nm radiation ultraviolet rays, and

using a display connected to said chip for displaying said signal.

Assignments (2)
CONFIRMATORY LICENSE Recorded Feb 19, 2013
From: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 029827/0158 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2013
From: SMITH, CRAIG F.
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 029726/0046 →
Continuity (2)
Provisional Application 61466091 · Mar 22, 2011
Related Publication 20120241633A1 · Sep 27, 2012