Rubidium-87, or Rb-87, is one of only two naturally occurring isotopes of rubidium and by far the more scientifically important of the pair. It sits at the centre of three very different fields at once: precision timekeeping, quantum physics and geological dating. Few isotopes carry that combination.

Natural rubidium is roughly 72% Rb-85 and 28% Rb-87. For applications that depend on the specific nuclear and hyperfine properties of Rb-87, that natural mixture is a problem rather than a starting point, and isotopically enriched material is required.

Enriched Rb-87 is supplied in two main forms. Rubidium-87 chloride (⁸⁷RbCl) is a stable, water-soluble salt that is easy to weigh, ship and dissolve. Rubidium-87 metal is the form loaded directly into vapour cells, lamps and atomic sources. The chloride is also the usual precursor from which enriched metal is produced.

Key Properties of Rubidium-87

Property	Value
Isotope symbol	⁸⁷Rb
Atomic number	37
Neutrons	50
Atomic mass	86.909 Da
Natural abundance	~27.83%
Stability	Long-lived, effectively stable (half-life ~4.97 × 10¹⁰ years)
Decay mode	Beta decay to Sr-87
Supply forms	Enriched chloride (⁸⁷RbCl) and enriched metal
Typical enrichment level	98.4% (metal) · ≥98.5% (chloride)

Property	Rb-87 Chloride (⁸⁷RbCl)	Rb-87 Metal
Appearance	White crystalline solid	Silvery white soft metal
Molar mass	~122.36 g/mol	86.909 g/mol
Melting point	~718 °C	~39 °C
Solubility	Highly soluble in water and dilute acid	Reacts violently with water
Air stability	Stable, mildly hygroscopic	Ignites spontaneously in air
Packaging	Sealed vial, dry storage	Sealed glass ampoule under argon or vacuum
Transport	Not classified as dangerous goods	UN1423, Class 4.3 (dangerous when wet)

A note on stability. Rb-87 is technically radioactive, decaying by beta emission to Strontium-87, but its half-life of roughly 49.7 billion years is more than three times the age of the universe. For every practical laboratory and industrial purpose the material behaves as a stable isotope. That extraordinarily slow decay is not a limitation. It is precisely what makes Rb-87 the basis of one of geology’s most trusted dating methods.

Atomic Clocks and Frequency Standards

The best known application of Rb-87 is the rubidium frequency standard. The hyperfine transition in the ground state of Rb-87 occurs at approximately 6.835 GHz, and this transition is stable, reproducible and can be interrogated optically with modest equipment.

Rubidium clocks are far smaller, cheaper and more rugged than caesium standards, which is why they dominate applications where a physically large clock is not an option:

• Timing references in GPS and other satellite navigation payloads
• Synchronisation of telecommunications and mobile network infrastructure
• Frequency references in test and measurement instrumentation
• Holdover timing in power grid and financial trading systems

Clock manufacturers fill their resonance cells and lamps with enriched Rb-87 metal, because the vapour inside the cell must come from the metallic form. Isotopic purity matters: uncontrolled Rb-85 in the resonance cell adds its own hyperfine structure and optical absorption, degrading the signal-to-noise ratio of the Rb-87 transition. In classic lamp-pumped designs, a separate filter cell of enriched Rb-85 is used deliberately to shape the pumping light, so many clock builders source both enriched isotopes.

Laser Cooling, BEC and Quantum Technologies

Rb-87 is the workhorse isotope of cold-atom physics. Its optical transitions fall at wavelengths accessible to inexpensive diode lasers, and its collisional properties are unusually favourable for evaporative cooling. The first Bose-Einstein condensate ever produced, in 1995, was made from Rb-87.

Three decades later the isotope remains central to:

• Atom interferometry, used for gravimeters, gradiometers and inertial sensors that need no external reference
• Quantum computing research, where neutral Rb-87 atoms held in optical tweezer arrays serve as qubits
• Quantum simulation, using ultracold Rb-87 in optical lattices to model condensed matter systems
• Precision magnetometry, where rubidium vapour magnetometers reach sensitivities relevant to biomagnetic imaging and geophysical survey

In all of these systems the atoms come from Rb-87 metal, loaded into an ampoule-fed oven or an alkali dispenser and heated to produce vapour.

Rubidium vapour is also the optical pumping agent in spin-exchange optical pumping, the technique used to hyperpolarise noble gases such as Helium-3 (He-3) and Xenon-129 for magnetic resonance imaging and neutron spin filters.

Quantum Computing with Rb-87

Neutral-atom quantum computing has become one of the leading routes to a fault-tolerant quantum computer, and Rb-87 is its main qubit atom. Most of the companies in the field, including QuEra (Boston), Pasqal (Paris) and Infleqtion (Boulder), build their processors on Rb-87.

How an Rb-87 quantum processor works:

• Individual Rb-87 atoms are held in arrays of tightly focused laser beams (optical tweezers) inside an ultra-high vacuum chamber.
• Each atom stores a qubit in its two hyperfine ground states, the same 6.835 GHz transition used in rubidium clocks.
• Two-qubit gates are made by briefly exciting atoms to high-energy Rydberg states, where neighbouring atoms interact strongly.
• Cooling and trapping lasers operate near 780 nm, the D2 line of Rb-87, served by mature and affordable diode laser technology.

Why the industry chose Rb-87:

• Identical qubits. Every Rb-87 atom is physically identical, so there is none of the chip-to-chip variability of fabricated qubits.
• No dilution refrigerator. The atoms are cooled by laser, not by millikelvin cryogenics.
• Scalability. Atom arrays can be rearranged in real time, and systems already run to hundreds of physical qubits.

The technology has moved from the lab into deployment. Pasqal delivered a 140+ qubit Rb-87 system to the CINECA supercomputing centre in Bologna in February 2026, QuEra operates the 256-atom Aquila on Amazon Braket and the 260-qubit gate-based Gemini, and QuEra plans its first fully fault-tolerant machine for 2028.

Every one of these machines is loaded from Rb-87 metal, through an ampoule-fed oven or an alkali dispenser. Enriched material raises the useful Rb-87 flux from each source and reduces background rubidium in the vacuum system. As the number of installed systems and research testbeds grows, so does recurring demand for high-purity enriched Rb-87 metal in breakseal ampoules.

Other Applications of Rb-87

Quantum Navigation and Gravimetry

Atom interferometers built on laser-cooled Rb-87 measure acceleration, rotation and gravity with an accuracy that conventional accelerometers cannot match, and they drift far less. This makes them the core of GPS-free navigation for ships, aircraft and submarines. In March 2026 Q-CTRL navigated an 83 km route at sea in the Coral Sea using an Rb-87 quantum gravimeter matched against gravity maps, with satellite positioning excluded. In the UK, the HARLEQUIN system has completed marine trials of an Rb-87 quantum accelerometer. The same instruments serve mineral exploration, geophysical survey and civil engineering.

Rydberg RF Receivers

Rubidium vapour cells, with atoms excited to Rydberg states, act as antennas that detect radio signals from the MHz range to the THz range. These atomic receivers are self-calibrated, very small and broadband, and are being developed for telecommunications, radar, electronic warfare and SI-traceable RF metrology. Rb-87 is one of the standard working atoms.

Quantum Memory and Quantum Networks

Ensembles and single atoms of Rb-87 can store and release single photons on demand. This makes Rb-87 a leading platform for quantum memories and quantum repeaters, the building blocks of long-distance quantum communication and quantum internet testbeds.

Compact Optical Clocks

A two-photon transition in rubidium vapour at 778 nm is the basis of compact optical frequency references. These deliver far better stability than microwave rubidium clocks in a portable package, and are being developed for next-generation positioning, navigation and timing.

Fundamental Physics

Rb-87 is used in precision measurements of fundamental constants, including the fine-structure constant, and in tests of the equivalence principle that compare the free fall of Rb-87 and Rb-85 atoms. These experiments need both isotopes in enriched form.

Rb-Sr Geochronology

The slow beta decay of Rb-87 to Sr-87 underpins the rubidium-strontium dating method, one of the foundational techniques of isotope geology. Because the half-life is so long, the method is well suited to dating events on the scale of hundreds of millions to billions of years: the formation of ancient crustal rocks, meteorites and lunar samples.

Enriched Rb-87 has a specific role here that is distinct from the natural isotope. In isotope dilution mass spectrometry, a precisely calibrated spike of enriched material is added to the sample in a known quantity, allowing the analyst to determine rubidium concentration with an accuracy that external calibration cannot match. Rb-87 chloride is the preferred form for spike preparation: it weighs accurately, does not react with air, and dissolves cleanly in water or dilute acid to give a stable stock solution.

The same isotope dilution principle applies across the field, which is why laboratories running geochemical and cosmochemical work typically source a family of enriched spikes with certified isotopic composition.

Chloride or Metal: Choosing the Right Form

Rubidium metal ignites on contact with air and reacts violently with water. Where the application needs rubidium vapour, however, the metal is the correct and only practical choice.

Choose Rb-87 metal when the material will be:

• Filled into vapour cells and lamps for atomic clocks and magnetometers
• Loaded into ovens or dispensers for laser cooling, BEC and quantum computing experiments
• Used as the optical pumping medium in spin-exchange optical pumping

Choose Rb-87 chloride when the material will be:

• Dissolved to prepare isotope dilution spikes or standard solutions
• Converted to another rubidium compound or reduced to metal in-house
• Shipped and stored without the hazard classification of an alkali metal
• Weighed out in small, precise quantities on an open balance

Rb-87 metal is shipped in sealed glass ampoules under argon or vacuum and must be opened and handled under inert atmosphere. Rb-87 chloride only needs to be kept dry and tightly closed. Full handling guidance is set out in the Rb-87 safety data sheet.

Why Enrichment Level Matters

Natural rubidium contains under 28% Rb-87. At that level the Rb-85 fraction is not a trace contaminant but the majority of the material, and it interferes directly in every application above: it broadens and complicates the optical spectrum in clock and cold-atom work, and it distorts the isotope ratio measurement in geochronology.

This is why laboratories specify enrichment of 98% or higher, with a full isotopic certificate stating the measured abundance of both rubidium isotopes. It is the same standard applied to Iron-57 (Fe-57) for Mössbauer spectroscopy and to Molybdenum-100 (Mo-100) for medical radioisotope production, where the enrichment level of the input material sets a hard ceiling on the quality of the result.

For a comparison of both rubidium isotopes and their respective uses, see our overview of Rb-87 and Rb-85 properties and applications.

Sourcing Rubidium-87 from AMT

AMT Isotopes supplies enriched Rubidium-87 as chloride (⁸⁷RbCl) and as high-purity metal for atomic clock manufacture, quantum and cold-atom research, geochronology laboratories and analytical standard preparation. Metal is supplied in sealed glass ampoules under argon; chloride is supplied in sealed vials. Every shipment comes with a full certificate of analysis and certificate of origin, and reliable international delivery to research institutions and manufacturers.

Other chemical forms are available on request.

Request a quote for Rb-87 chloride or Rb-87 metal, or explore our full isotope catalog for available forms and quantities.

Frequently Asked Questions About Rubidium-87

Is Rubidium-87 radioactive?

Technically yes, but only just. Rb-87 undergoes beta decay to Strontium-87 with a half-life of approximately 49.7 billion years. The resulting activity is so low that the isotope is handled and classified as effectively stable in normal laboratory use.

What is the difference between Rb-87 and Rb-85?

Rb-85 makes up about 72% of natural rubidium and is genuinely stable. Rb-87 makes up about 28%, is very weakly radioactive, and has the hyperfine transition and collisional properties that make it the isotope of choice for atomic clocks and cold-atom physics.

Why is enriched Rb-87 needed instead of natural rubidium?

Natural rubidium is majority Rb-85, which interferes optically in clock and laser cooling applications and distorts isotope ratio measurements in geochronology. Enrichment to 98% or above cuts Rb-85 from about 72% to under 2%, removing that interference.

What enrichment level is available for Rb-87 chloride and metal?

AMT supplies Rb-87 metal at 98.4% and Rb-87 chloride at 98.5% or higher, with the measured isotopic composition stated on the certificate of analysis.

How should Rb-87 metal be stored and shipped?

In sealed glass ampoules under argon or vacuum, away from moisture and heat. The metal melts at about 39 °C and ignites in air, so ampoules should be opened only in a glovebox or inside the vacuum system they feed. It ships as dangerous goods under UN1423, Class 4.3.

How should Rb-87 chloride be stored?

In a tightly closed container in a dry place. Rubidium chloride is stable in air but mildly hygroscopic, so keeping it dry protects weighing accuracy. It is not classified as dangerous goods for transport.

Why is Rb-87 used in atomic clocks?

Its ground state hyperfine transition at about 6.835 GHz is stable, reproducible and easy to probe optically, allowing compact, rugged and affordable frequency standards for satellites, telecom networks and instrumentation.

Which isotope was used for the first Bose-Einstein condensate?

Rubidium-87. The first BEC was produced in 1995 by cooling a dilute vapour of Rb-87 atoms to within a fraction of a microkelvin of absolute zero.

How does Rb-Sr dating work?

Rb-87 decays to Sr-87 at a known, very slow rate. By measuring the Rb-87/Sr-86 and Sr-87/Sr-86 ratios in several minerals from the same rock, geologists construct an isochron whose slope gives the age of the rock. Enriched Rb-87 spikes are used to measure rubidium concentration precisely by isotope dilution.

When should you choose rubidium chloride over rubidium metal?

Choose the chloride when the rubidium will be dissolved, converted or used as a spike, or when you want material that is easy to weigh, store and ship. Choose the metal when the application needs rubidium vapour, such as vapour cells, clock lamps and cold-atom sources.

Which quantum computers use Rb-87?

Most neutral-atom quantum computers, including the systems built by QuEra, Pasqal and Infleqtion. Each Rb-87 atom is held in an optical tweezer and stores a qubit in its hyperfine ground states. The atoms are loaded from Rb-87 metal.

Is Rb-87 used for GPS-free navigation?

Yes. Atom interferometers using laser-cooled Rb-87 measure acceleration and gravity precisely enough to navigate without satellite signals, and have already been tested at sea.

What is a Rydberg atom RF receiver?

A rubidium vapour cell in which atoms are laser-excited to Rydberg states, making them extremely sensitive to radio-frequency electric fields. It works as a small, self-calibrated, broadband antenna.

Overview

Molybdenum-100, or Mo-100, is a stable isotope of molybdenum and one of the most strategically significant isotopes in modern nuclear medicine. While molybdenum is naturally composed of seven stable isotopes, Mo-100 stands apart due to its unique role as the primary precursor for the production of Technetium-99m (Tc-99m) – the most widely used radioisotope in diagnostic nuclear medicine worldwide.

Supplied in its enriched oxide form (¹⁰⁰MoO₃), Mo-100 is the essential starting material for a global medical imaging supply chain that serves hundreds of millions of patients annually.

Key Properties of Molybdenum-100 Oxide

Property	Value
Isotope symbol	¹⁰⁰Mo
Atomic number	42
Neutrons	58
Atomic mass	99.907 Da
Natural abundance	~9.82%
Stability	Stable (non-radioactive)
Common supply form	Enriched oxide (¹⁰⁰MoO₃)
Typical enrichment level	≥99%

In its natural state, molybdenum contains only ~9.82% Mo-100. For medical and research applications, isotopic enrichment is required to produce material with Mo-100 content of 99% or above – eliminating interference from other molybdenum isotopes in downstream processes.

The Mo-100 → Tc-99m Production Pipeline

The single most important application of Mo-100 is the production of Molybdenum-99 (Mo-99), which decays to yield Technetium-99m (Tc-99m).

Tc-99m is used in an estimated 40–50 million diagnostic procedures every year, making it by far the most commonly used radioisotope in nuclear medicine. It is the active agent in SPECT imaging for:

• Cardiac perfusion imaging
• Bone scans for cancer staging and fracture detection
• Sentinel lymph node mapping
• Renal and thyroid function studies
• Pulmonary embolism diagnosis

The production route begins with enriched ¹⁰⁰MoO₃ as a target material. When irradiated in a particle accelerator (cyclotron), Mo-100 undergoes a (p,2n) nuclear reaction to produce Mo-99, which then decays with a 66-hour half-life to Tc-99m. This cyclotron-based approach offers a reactor-independent route to Tc-99m production – a significant advantage for supply chain resilience, as illustrated during historic nuclear reactor shutdowns that disrupted global Tc-99m supply.

This same “enriched stable isotope as target → radioisotope output” pipeline is also the foundation of other key nuclear medicine pathways, such as the production of Lutetium-177 from Ytterbium-176 (Yb-176) and the production of Scandium-44 from Calcium-44 (Ca-44).

Additional Applications of Mo-100

Beyond the Tc-99m supply chain, Mo-100 has several other established and emerging uses:

Neutrinoless double beta decay research. Mo-100 is one of a small number of isotopes considered promising candidates for experiments searching for neutrinoless double beta decay – a hypothetical nuclear process whose detection would have major implications for particle physics and our understanding of neutrino mass. Experiments such as NEMO-3 and SuperNEMO have used enriched Mo-100 as a detector material.

Nuclear structure research. Mo-100’s neutron-rich character makes it a useful target isotope in nuclear structure and reaction studies carried out at research accelerators worldwide.

Reactor applications. Like other molybdenum isotopes, Mo-100 has relevance in reactor physics, particularly in neutron-capture cross-section studies and materials irradiation research.

Why Enrichment Level Matters for Mo-100 Applications

For cyclotron-based Tc-99m production, the enrichment level of the Mo-100 oxide target directly determines both the yield and the purity of the resulting radiopharmaceutical product. Lower Mo-100 enrichment means more contamination from other molybdenum isotopes, which can reduce Tc-99m yield and introduce unwanted isotopic impurities into the final clinical product.

This is why nuclear medicine producers, research centers, and accelerator facilities sourcing Mo-100 consistently specify high-enrichment material (≥99% Mo-100) with full isotopic certificates – the same standard applied to isotopes such as Iron-57 (Fe-57), Ytterbium-176, and Helium-3 (He-3) supplied for comparable high-precision applications.

Sourcing Molybdenum-100 Oxide from AMT

AMT Isotopes supplies enriched Molybdenum-100 oxide (¹⁰⁰MoO₃) for cyclotron-based radioisotope production, nuclear physics research, and related applications. Every batch is accompanied by a full certificate of analysis and certificate of origin, with reliable international delivery to research institutions, hospitals, and pharmaceutical manufacturers.

Request a quote for Mo-100 Oxide or explore our full isotope catalog for available forms and quantities.

Overview

Calcium-42 is a stable, non-radioactive isotope of calcium used across metabolic research, nutritional science, bone biology, and isotopic tracer studies. While its better-known sibling, Calcium-44 (Ca-44), has attracted attention for its role in nuclear medicine as a precursor for Scandium-44, Ca-42 has long served a distinct and valuable purpose: as a precise, safe tracer for calcium metabolism in living systems.

As stable isotope tracer techniques become more sophisticated and demand for calcium bioavailability studies grows across pharmaceutical, nutritional, and clinical research sectors, Ca-42 is increasingly recognized as an essential tool in the researcher’s toolkit.

Key Properties of Calcium-42

Property	Value
Isotope symbol	⁴²Ca
Atomic number (protons)	20
Neutrons	22
Atomic mass	41.958 Da
Natural abundance	~0.647%
Stability	Stable (non-radioactive)
Common supply forms	Enriched metal, carbonate, oxide, chloride, nitrate

With a natural abundance of only 0.647%, Ca-42 is significantly rarer than other calcium isotopes such as Ca-40 (~97%), Ca-44 (~2.09%), or even Ca-48 (~0.187%). This low natural background makes enriched Ca-42 a highly effective isotopic tracer – the distinct isotopic signature it creates in a biological or environmental sample is easy to detect and quantify by mass spectrometry without interference from naturally occurring calcium.

Applications of Calcium-42

1. Calcium Metabolism and Bioavailability Studies

The most established application of Ca-42 is as a metabolic tracer for studying how the human (and animal) body absorbs, transports, and retains calcium. Because Ca-42 is stable and non-radioactive, it can be safely administered to study participants including children, pregnant women, and elderly patients – populations for whom radioactive tracers are not appropriate.

Researchers use Ca-42 alongside other calcium isotopes (such as Ca-44 or Ca-46) in dual- or multi-tracer protocols, allowing them to measure calcium absorption from different dietary sources or at different time points within a single study. This approach has yielded critical data for:

• Assessing calcium bioavailability from dairy products, fortified foods, and supplements
• Understanding age-related changes in calcium absorption
• Evaluating the effect of vitamin D, hormones, and disease states on calcium uptake

2. Bone Research and Osteoporosis Studies

Calcium is the primary mineral in bone, and Ca-42 tracer studies have contributed substantially to understanding bone formation and resorption kinetics. By tracking how Ca-42 is incorporated into and released from bone tissue, researchers can measure net calcium balance at the bone level – a metric highly relevant to osteoporosis research, pediatric bone development studies, and assessment of anti-resorptive drug therapies.

This research underpins clinical guidance on calcium intake across the lifespan and supports pharmaceutical development programs targeting bone mineral density.

3. Pediatric and Infant Nutrition Research

The safety profile of stable isotope tracers makes Ca-42 particularly suitable for infant nutrition studies, where regulatory and ethical constraints on radioactive tracers are most strict. Ca-42 tracer protocols have been used to evaluate calcium bioavailability from breast milk, infant formula, and fortified complementary foods, generating data that directly informs pediatric dietary guidelines worldwide.

4. Agricultural and Environmental Tracer Studies

Beyond human nutrition, Ca-42 is used in plant physiology and soil science research to trace how plants take up calcium from soil, how calcium moves through plant vascular systems, and how soil amendments affect calcium bioavailability in crops. These tracer studies support agricultural R&D aimed at improving crop nutritional quality.

5. Isotope Dilution Mass Spectrometry (IDMS)

In analytical chemistry, Ca-42 is used as an internal standard in isotope dilution mass spectrometry – a highly accurate quantification method used for calcium measurement in serum, urine, food, and environmental samples. IDMS with Ca-42 as a spike isotope is considered a reference-level analytical method by several international standards bodies.

Ca-42 vs. Ca-44: Choosing the Right Calcium Isotope

Researchers selecting between calcium isotopes for tracer studies often face a choice between Ca-42 and Ca-44. The key differences:

Feature	Ca-42	Ca-44
Natural abundance	0.647%	2.09%
Mass spectrometry signal separation	Excellent (far from Ca-40 dominant peak)	Good
Use in nuclear medicine	Not primary use	Precursor for Sc-44 (PET)
Primary use	Metabolic tracer, IDMS	Metabolic tracer + radiopharmaceutical precursor
Multi-tracer compatibility	Pairs well with Ca-44, Ca-46, Ca-48	Pairs well with Ca-42, Ca-46

Both isotopes are established tools and are sometimes used together in the same experiment. AMT Isotopes supplies both; see our Ca-44 page for full details on the Ca-44 → Sc-44 medical application pathway.

Why Isotopic Purity is Critical for Tracer Studies

In metabolic tracer experiments, the entire measurement relies on detecting a shift in the isotopic composition of calcium in biological samples. If the Ca-42 material supplied contains significant quantities of other calcium isotopes – especially the dominant Ca-40 – the tracer signal is diluted and the study’s sensitivity is reduced.

This is why Ca-42 for tracer applications is always supplied in enriched form, with isotopic purity typically exceeding 95–99%, and accompanied by a full certificate of analysis specifying the exact isotopic composition. The same purity standard applies across all our stable isotope offerings, from Rubidium-87 (Rb-87) to Oxygen-18 (O-18).

Sourcing Calcium-42 from AMT

AMT Isotopes supplies enriched Calcium-42 in multiple chemical forms – including carbonate, chloride, oxide, and metal – to support metabolic research, analytical chemistry, and agricultural science applications. Every shipment is backed by a certificate of analysis and certificate of origin, with reliable global delivery.

Request a quote for Ca-42 or browse our full range of calcium isotopes and other stable isotopes to find the right material for your study.

Ytterbium-176 (Yb-176) is one of the most valuable stable isotopes of the lanthanide element ytterbium. Known for its favorable nuclear properties and high chemical purity, Yb-176 plays a key role in modern nuclear medicine and materials science. As global demand for precision isotopes increases, Yb-176 has emerged as one of the most strategically important ytterbium isotopes, supporting innovations across multiple scientific and industrial fields.

What Makes Yb-176 Important?

As a stable isotope, Yb-176 is chemically safe to handle, highly reliable in controlled environments, and enriched to purities greater than 99%. These characteristics make it especially valuable for applications requiring exceptional isotopic consistency. Researchers use Yb-176 for advanced spectroscopy, neutron capture studies, and as a precursor for radioisotope production. Its stable structural profile also allows it to perform well in extreme laboratory conditions, supporting high-accuracy analytical techniques.

Key Applications of Yb-176 in Science and Industry

1. Production of Lutetium-177 (Lu-177)

One of the most significant uses of the Yb-176 isotope is as a target material for producing Lu-177, one of the world’s leading medical radioisotopes. Lu-177 is widely used in targeted radionuclide therapy for prostate cancer, neuroendocrine tumors, and emerging oncology treatments.

When Yb-176 undergoes neutron capture in a reactor, it forms Yb-177, which then decays into high-specific-activity Lu-177. The stability and purity of Yb-176 directly impact the radiochemical quality of the final therapeutic product.

2. Nuclear Physics and Cross-Section Research

Yb-176 is frequently utilized in neutron capture experiments and nuclear cross-section studies. Its favorable nuclear behavior provides highly accurate analytical data, supporting advancements in reactor design, neutron detector calibration, and fundamental nuclear physics models.

3. Laser Doping and Crystal Engineering

Yb-176 is also used in the precise doping of specialty crystals and advanced laser components. These materials are utilized in medical imaging systems, industrial cutting applications, and optical communication technologies.

Ytterbium Isotopes: A Broader Context

Ytterbium contains seven stable isotopes, but only a select few—such as Yb-169, Yb-171, and Yb-176—have major industrial and medical significance.

• Yb-169 is widely used in gamma radiography and has been explored as an alternative to I-125 and Pd-103 in prostate cancer brachytherapy.
• Yb-171 has been researched for its use in optical frequency standards.
• Yb-176 stands out for its essential role in medical radioisotope production and high-precision scientific research.

These complementary uses position ytterbium isotopes as essential materials for next-generation healthcare, engineering, and physics.

Market Outlook and Availability

The global market for ytterbium 176 is expanding as interest continues to grow in nuclear medicine and advanced material engineering. However, supply remains limited due to the complexity of isotope separation and the need for highly specialized production facilities. For this reason, choosing a reliable supplier is critical for laboratories and medical producers.

AMT Isotopes ensures high-purity, certified ytterbium isotopes with dependable global delivery. Whether used for Lu-177 production, crystal engineering, or spectroscopy, our materials meet the strict quality requirements needed for scientific and industrial excellence.

Where to Purchase Yb-176?

Researchers and developers needing Yb-176 can request a customized quote through AMT Isotopes. We provide material in multiple chemical forms, with documentation such as ytterbium 176 MSDS available upon request to ensure safe handling and regulatory compliance.