Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

2.5K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
2.5K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

834
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
834
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

1.4K
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
1.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Detection of microsporidia (Enterocytozoon bieneusi) in intestinal biopsy specimens from human immunodeficiency virus-infected patients by PCR.

Journal of clinical microbiology·1995
Same author

Parturition in the rabbit is compromised by daytime nursing: the role of oxytocin.

Biology of reproduction·1995
Same author

Isozyme selective inhibition of cGMP-stimulated cyclic nucleotide phosphodiesterases by erythro-9-(2-hydroxy-3-nonyl) adenine.

Cellular signalling·1995
Same author

[Residual placental blood and bone marrow as sources of hematopoietic stem cells for allogenic stem cell transplantation. Comparative analysis of hematopoietic potential].

Klinische Padiatrie·1995
Same author

Immediate metabolic effects of different nutritional regimens in critically ill medical patients.

Intensive care medicine·1995
Same author

Flybrain, an on-line atlas and database of the Drosophila nervous system.

Neuron·1995

Related Experiment Video

Updated: Mar 19, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.5K

A Superconducting Magnet UCN Trap for Precise Neutron Lifetime Measurements.

R Picker1, I Altarev1, J Bröcker1

  • 1Technical University Munich, Physics Department E 18, D-85748 Garching, Germany.

Journal of Research of the National Institute of Standards and Technology
|June 17, 2016
PubMed
Summary

This study designed a magnetic storage device for ultracold neutrons (UCN) to accurately measure their lifetime. The optimized setup minimizes UCN loss and maximizes proton detection from beta decay.

Keywords:
Monte Carlo simulationUCNbeta-decaymagnetic storageneutron lifetimesuperconductivity

More Related Videos

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.7K
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.4K

Related Experiment Videos

Last Updated: Mar 19, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.5K
Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.7K
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.4K

Area of Science:

  • Nuclear Physics
  • Particle Physics
  • Experimental Physics

Background:

  • Accurate measurement of the neutron lifetime is crucial for fundamental physics and cosmology.
  • Previous methods for storing ultracold neutrons (UCN) faced challenges with particle loss and detection efficiency.
  • Developing advanced UCN storage techniques is essential for precision measurements.

Purpose of the Study:

  • To design and optimize a magnetic storage device for ultracold neutrons (UCN).
  • To achieve high efficiency in confining UCN and detecting protons from beta decay.
  • To enable precise measurements of the neutron lifetime.

Main Methods:

  • Utilized finite-element methods for designing the magnetic and electrostatic fields.
  • Employed extensive Monte Carlo simulations to optimize the trap design and investigate its properties.
  • Designed a system with stacked superconducting solenoids for magnetic confinement.
  • Incorporated an electrostatic extraction field for efficient proton collection.

Main Results:

  • A novel magnetic storage device design was determined.
  • The proposed setup minimizes UCN losses during storage.
  • High efficiency in detecting protons from UCN beta decay is achieved.
  • The magnetic and electrostatic components were optimized for performance.

Conclusions:

  • The designed magnetic storage device is suitable for precise UCN lifetime measurements.
  • The combination of magnetic confinement and electrostatic extraction enhances experimental capabilities.
  • This setup offers a promising approach for future fundamental physics experiments involving UCN.