Z = 81 — Thallium (Tl)
- Isemiconductors (TlBr detectors), glass modifiers, radiopharma (²⁰¹Tl imaging).
- Mniche market; isotopes produced by cyclotrons.
- COpt (detectors), Fiber (hospital cloud), Human (med licensing).
- SΓ: 135 / 167 keV (²⁰¹Tl) · Kα: 72.871 keV.
- Cirradiopharma generator recycling; detector reclaim.
Z = 82 — Lead (Pb)
- Ibatteries (Pb-acid), radiation shielding, alloys.
- Mwidely traded, heavy in construction/energy storage.
- CRF (battery IoT telemetry), Human (enviro health).
- SΓ: 46.5 keV (²¹⁰Pb) · Kα: 74.969 keV.
- Circlosed-loop battery recycling (>95% recovery).
Z = 83 — Bismuth (Bi)
- Ialloys, cosmetics, radiopharma (²¹³Bi, α therapy).
- Mby-product of Pb/Cu refining; isotope niche.
- CHuman (medical regulation), Fiber (supply chain).
- SΓ: 609 / 1120 / 1764 keV (²¹²Bi) · Kα: 77.108 keV.
- Cirisotope loop closure; Bi recovery from refining.
Z = 84 — Polonium (Po)
- IRTGs (²¹⁰Po α source), static eliminators (historic).
- Mproduced in reactors only; strict control.
- CSat (source tracking), Human (nuclear control).
- SΓ: α-dominant · Kα: 78.400 keV.
- Cirsealed-source return programs.
Z = 85 — Astatine (At)
- I²¹¹At α therapy (emerging).
- Mcyclotron-only; medical isotope research.
- CFiber (telemed), Human (clinical licensing).
- SΓ: weak ROI · Kα: 80.400 keV.
- Cirisotope generator reprocessing.
Z = 86 — Radon (Rn)
- Itracer studies; hazard monitoring (radon gas in buildings).
- Mnot commercial; hazard context only.
- CSat (atmospheric sensing), Human (building codes).
- SΓ: 295 / 352 / 609 / 1764 keV (²²²Rn daughters) · Kα: 81.900 keV.
- Cirradon remediation systems.
Z = 87 — Francium (Fr)
- Ipurely research (atomic parity violation).
- Mnot marketable; lab curiosity.
- CQ (atomic clock R&D), Human (fundamental physics).
- SΓ: weak · Kα: 83.800 keV.
- Cirn/a (synthetic).
Z = 88 — Radium (Ra)
- Ihistoric therapy; industrial radiography (legacy).
- Mreplaced by safer isotopes.
- CHuman (health regulation), RF (sealed source NDT legacy).
- SΓ: 186 keV (²²⁶Ra) · Kα: 85.900 keV.
- Cirsealed-source disposal.
Z = 89 — Actinium (Ac)
- I²²⁵Ac α therapy (immuno-conjugates).
- Mproduced from ²²⁹Th; medical isotope demand.
- CFiber (hospital data), Human (isotope licensing).
- SΓ: 911 keV (²²⁷Ac) · Kα: 87.900 keV.
- Cirisotope generator recovery loops.
Z = 90 — Thorium (Th)
- Inuclear fuel (MSR), catalysts, alloys.
- Mabundant but underutilized; strategic nuclear.
- CFiber (nuclear SCADA), Sat (safeguards), Human (fuel cycle policy).
- SΓ: 238 / 2615 keV (²³²Th daughters) · Kα: 93.350 keV.
- CirMSR closed-fuel cycle R&D.
Z = 91 — Protactinium (Pa)
- Iresearch isotope, dating.
- Mscarce, no broad market.
- CHuman (fundamental research), Fiber (lab networks).
- SΓ: 312 keV (²³¹Pa) · Kα: 98.920 keV.
- Cirtrace geochronology loops.
Z = 92 — Uranium (U)
- Inuclear power (²³⁵U fissile, ²³⁸U fertile), isotopes for imaging.
- Mglobally traded (U₃O₈ contracts).
- CSat (nuclear supply), Fiber (reactor SCADA), Human (safeguards).
- SΓ: 1001 keV (²³⁴mPa) · Kα: 98.439 keV.
- Circlosed fuel cycles, U-Th synergy.
Z = 93 — Neptunium (Np)
- Iisotope precursors (²³⁷Np → ²³⁸Pu), nuclear waste.
- Mcontrolled; niche demand.
- CHuman (waste safeguards), Fiber (tracking).
- SΓ: 106 keV (²³⁷Np) · Kα: theor. only.
- Cirpartitioning in advanced fuel cycles.
Z = 94 — Plutonium (Pu)
- I²³⁹Pu (fuel/weapons), ²³⁸Pu (RTGs).
- Mdefense-locked; no civil commodity.
- CSat (nuclear tracking), Human (treaties), Fiber (lab safeguards).
- SΓ: 51.6 / 375 keV (²⁴¹Pu) · Kα: theor.
- CirMOX fuel cycles; RTG reuse.
Z = 95 — Americium (Am)
- I²⁴¹Am in smoke detectors; neutron sources.
- Mniche sealed-source market.
- CHuman (health codes), RF (smoke alarms).
- SΓ: 59.5 keV (²⁴¹Am) · Kα: theor.
- Cirsealed-source recycling.
Z = 96 — Curium (Cm)
- Ineutron sources (²⁴⁴Cm), isotope R&D.
- Mlimited, lab-focused.
- CSat (nuclear monitoring), Human (safeguards).
- SΓ: 333 keV (²⁴⁴Cm) · Kα: theor.
- Cirisotope recovery from fuel cycle.
Z = 97 — Berkelium (Bk)
- Itarget material for superheavy element research.
- Mproduced in mg quantities only.
- CHuman (lab science).
- SΓ: weak ROI · Kα: theor.
- Cirresearch-only use.
Z = 98 — Californium (Cf)
- Ineutron sources (²⁵²Cf); oil exploration, reactor startup.
- Mextremely valuable per gram; produced in reactors.
- CRF (NDT neutron logging), Human (strict controls).
- SΓ: fission spectrum (²⁵²Cf) · Kα: theor.
- Cirsealed-source return programs.
Z = 99 — Einsteinium (Es)
- Isuperheavy element target, research only.
- Mlab-only, µg production.
- CHuman (fundamental science).
- SΓ: ~150 keV lines (²⁵²Es) · Kα: theor.
- Cirnone — research isotope.
Z = 100 — Fermium (Fm)
- Ilab-only, nuclear science.
- Msynthetic; no market.
- CHuman (fundamental physics).
- SΓ: weak ROI (²⁵⁷Fm) · Kα: theor.
- Cirnone — research isotope.
Key terms in plain language
Open a term for a concise explanation of language used on this page.
Fiber Internet
Internet delivered through strands of glass using light. Fiber commonly supports high capacity, low latency, and strong upload performance, but availability must be confirmed for the exact address.
Cloud Computing
Computing resources—such as applications, servers, storage, or databases—delivered from remote infrastructure and scaled as requirements change.
Infrastructure as a Service (IaaS)
Cloud-based servers, storage, and networking that customers configure and manage without owning the underlying data-center hardware.
Software as a Service (SaaS)
Software accessed as an online service instead of being installed and maintained entirely on the customer’s own computers or servers.
Disaster Recovery (DRaaS)
A plan and service for restoring applications, data, and operations after an outage or disruption. DRaaS provides recovery infrastructure through a managed cloud service.
Identity and Access Management (IAM)
The systems and policies that determine who a user is, what resources they may access, and how that access is authenticated and reviewed.