Blas Jacob Cabrera

US Patent:

56419619, Jun 24, 1997

Filed:

Dec 28, 1995

Appl. No.:

8/579740

Inventors:

Kent D. Irwin - Boulder CO
Blas Cabrera - Stanford CA

Assignee:

Stanford University - Stanford CA

International Classification:

G01T 100

US Classification:

2503362

Abstract:

A novel type of superconducting transition edge sensor is described. The sensor comprises a primary heat sink maintained at a constant temperature and a resistive means, such as a superconducting film, in thermal contact with the primary heat sink. The temperature of the primary heat sink is kept well below the transition temperature of the superconducting film. The film is voltage biased, so that its temperature is maintained within its superconducting transition through electrothermal feedback: at equilibrium, the Joule heating of the film is equal to the heat loss from the film to the substrate. The energy deposited in the film by a particle incident on the sensor is measured by the reduction in Joule heating.

US Patent:

62115197, Apr 3, 2001

Filed:

Sep 14, 1998

Appl. No.:

9/152747

Inventors:

Sae Woo Nam - Palo Alto CA
Blas Cabrera - Stanford CA

Assignee:

The Board of Trustees of the LeLand Stanford Junior University - Stanford CA

International Classification:

H01L 3906

US Classification:

2503362

Abstract:

A superconducting transition-edge sensor with an electrothermal-feedback circuit, a heat sink thermally coupled thereto, a bias-feedback circuit electrically coupled with the electrothermal feedback circuit, and a current sensor electrically coupled with the bias-feedback circuit and inductively coupled with the electrothermal-feedback circuit.

Author:

Blas Cabrera

ISBN #:

0306453843

Author:

Blas Cabrera

ISBN #:

8460014428