---
title: "Cavity Body"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CAVITY_BODY"
  data_integrity_hash: "ccf0dce616e6e82ffe815e7c295f81ed"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:CAVITY_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/cavity-body.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/cavity-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "1.0e-6 to 1.0e-9 Torr vacuum pressure, 1.8-2.0 K cryogenic temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 1.0
    unit: "e"
    consequence: "Multipacting electron discharge at 1.0e-4 Torr vacuum pressure due to secondary electron emission yield &gt;1, thermal quenching above 4.2 K causing superconducting niobium to transition to normal conducting state"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Residual gas pressure increase to 1.0e-4 Torr due to vacuum seal degradation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Double O-ring vacuum seals with helium leak testing at 1.0e-9 mbar·L/s, titanium sublimation pumps maintaining 1.0e-9 Torr base pressure"
  - node_2:
      trigger: "Cryogenic system failure causing temperature rise above 4.2 K"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Redundant 4.5 K helium refrigeration systems with PID temperature control maintaining 1.8±0.1 K, copper thermal shields with MLI insulation"
bom_nodes:
  beam-pipe-ports:
    type: "component"
    urn: "URN:CNFX:ME:BEAM_PIPE_PORTS"
    interface_type: "physical-logic-coupled"
  coupling-ports:
    type: "component"
    urn: "URN:CNFX:ME:COUPLING_PORTS"
    interface_type: "physical-logic-coupled"
  tuning-mechanisms:
    type: "part"
    urn: "URN:CNFX:ME:TUNING_MECHANISMS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU CONFORMITY FOR PRESSURE EQUIPMENT DIRECTIVE 2014/68/EU)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/cavity-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "e880979fced4ac00b831460b3f55c0d7a8501788c9ad8f2593542da917d2a777"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Cavity Body

## 1. Technical Definition
The main structural housing of an accelerating cavity that contains and shapes the electromagnetic fields for particle acceleration.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1.0e-6 to 1.0e-9 Torr vacuum pressure, 1.8-2.0 K cryogenic temperature**. Failure boundary: **1.0e-4 Torr vacuum pressure (multipacting threshold), 4.2 K temperature (superconducting transition)**, Mechanism: **Multipacting electron discharge at 1.0e-4 Torr vacuum pressure due to secondary electron emission yield &gt;1, thermal quenching above 4.2 K causing superconducting niobium to transition to normal conducting state**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Residual gas pressure increase to 1.0e-4 Torr due to vacuum seal degradation | 8 | Multipacting electron discharge causing localized heating and field emission | Double O-ring vacuum seals with helium leak testing at 1.0e-9 mbar·L/s, titanium sublimation pumps maintaining 1.0e-9 Torr base pressure |
| Cryogenic system failure causing temperature rise above 4.2 K | 8 | Superconducting-to-normal transition increasing surface resistance from 10 nΩ to 100 μΩ | Redundant 4.5 K helium refrigeration systems with PID temperature control maintaining 1.8±0.1 K, copper thermal shields with MLI insulation |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Tuning Mechanisms](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/tuning-mechanisms.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **High-Vacuum Pump System**, **RF Power Amplifier**, **Precision Cooling System**  
**Downstream Applications**: Linear Accelerators, Synchrotron Radiation Sources, Medical Particle Therapy Systems  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used for cavity bodies in particle accelerators?
**A**: Cavity bodies are typically made from high-purity copper for normal conducting applications, niobium for superconducting cavities requiring cryogenic operation, and stainless steel for structural components and vacuum compatibility.

### Q: What are the key components included in a cavity body assembly?
**A**: A complete cavity body assembly includes beam pipe ports for particle beam entry/exit, coupling ports for RF power input and diagnostics, and tuning mechanisms for precise frequency adjustment and field optimization.

### Q: How does the cavity body shape electromagnetic fields for particle acceleration?
**A**: The precisely machined interior geometry of the cavity body creates resonant electromagnetic fields that accelerate charged particles through synchronized electric field oscillations, with the shape determining field distribution and acceleration efficiency.

## 6. Manufacturing Compliance
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)
- CE MARKING (EU CONFORMITY FOR PRESSURE EQUIPMENT DIRECTIVE 2014/68/EU)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Cavity Body](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/cavity-body)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: CAVITY_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a478a18f
