NTD germanium: a novel material for low-temperature bolometers

PDF Version Also Available for Download.

Description

Six samples of ultra-pure (absolute value N/sub A/ - N/sub D/ absolute value less than or equal to 10/sup 11/cm/sup -3/), single-crystal germanium have been neutron transmutation doped with neutron doses between 7.5 x 10/sup 16/ and 1.88 x 10/sup 18/cm/sup -2/. After thermal annealing at 400/sup 0/C for six hours in a pure argon atmosphere, the samples have been characterized with Hall effect and resistivity measurements between 300 and 0.3 K. Our results show that the resistivity in the low temperature, hopping conduction regime can be approximated with rho = rho/sub 0/exp(..delta../T). The three more heavily doped samples show ... continued below

Physical Description

Pages: 15

Creation Information

Haller, E.E.; Palaio, N.P.; Rodder, M.; Hansen, W.L. & Kreysa, E. June 1, 1982.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

Six samples of ultra-pure (absolute value N/sub A/ - N/sub D/ absolute value less than or equal to 10/sup 11/cm/sup -3/), single-crystal germanium have been neutron transmutation doped with neutron doses between 7.5 x 10/sup 16/ and 1.88 x 10/sup 18/cm/sup -2/. After thermal annealing at 400/sup 0/C for six hours in a pure argon atmosphere, the samples have been characterized with Hall effect and resistivity measurements between 300 and 0.3 K. Our results show that the resistivity in the low temperature, hopping conduction regime can be approximated with rho = rho/sub 0/exp(..delta../T). The three more heavily doped samples show values for rho/sub 0/ and ..delta.. ranging from 430 to 3.3 ..cap omega.. cm and from 4.9 to 2.8 K, respectively. The excellent reproducibility of neutron transmutation doping and the values of rho/sub 0/ and ..delta.. make NTD Ge a prime candidate for the fabrication of low temperature, low noise bolometers. The large variation in the tabulated values of the thermal neutron cross sections for the different germanium isotopes makes it clear that accurate measurements of these cross-sections for well defined neutron energy spectra would be highly desirable.

Physical Description

Pages: 15

Notes

NTIS, PC A02/MF A01.

Source

  • 4. international neutron transmutation doping conference, Gaithersburg, MD, USA, 1 Jun 1982

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Other: DE82018580
  • Report No.: LBL-14649
  • Report No.: CONF-8206100-1
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 5224080
  • Archival Resource Key: ark:/67531/metadc1065797

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • June 1, 1982

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • April 25, 2018, 4:51 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 7

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Haller, E.E.; Palaio, N.P.; Rodder, M.; Hansen, W.L. & Kreysa, E. NTD germanium: a novel material for low-temperature bolometers, article, June 1, 1982; [Berkeley,] California. (digital.library.unt.edu/ark:/67531/metadc1065797/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.