sem_se_escape_fraction — GENERATIVE `sem` op

• Data kinds: none → signal (an op determined by its arguments alone — it takes no image or data input)

• Call: import fullseye as fs; fs.ledger.sem_se_escape_fraction(potential_v=None, *, phi_ev: 'float' = 2.0) (to call the implementation directly, import sem; sem.sem_se_escape_fraction(potential_v=None, *, phi_ev: 'float' = 2.0); from the registry, opsgenerative.get("sem_se_escape_fraction"))

Usage

Fraction F(V) of secondary electrons that can leave a positively charged surface (potential V > 0).

> The detailed description below is the original text — the summary and the headings are translated.

二次電子のエネルギー分布を Chung-Everhart の f(E) ∝ E / (E + φ)⁴ とし、E > V の割合を閉形式で積分した F(V) = φ² (3u − 2φ) / u³(u = V + φ)。F(0) = 1、V → ∞ で 0。V ≤ 0 は 1(負の面は二次電子を押し出す側。明るくなる分は sem_charging_series が別に扱う)。potential_v を省くと 0〜20 V の 41 点で返す(signal)。

Examples

>>> float(sem_se_escape_fraction(0.0)), round(float(sem_se_escape_fraction(2.0)), 4)

(1.0, 0.5)

Detailed usage guide

• generative_art family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_virtual_sem_kv_cd_bse — py -3.11 examples/poc_virtual_sem_kv_cd_bse.py

Ops the type connects to (they accept `signal` as input)

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Same category (`sem`)

sem_render · sem_electron_mc · sem_se_universal_curve · sem_yield_curve · sem_line_profile · sem_cd_measure · sem_image · sem_charging_series

*Provenance: sem.py — GENERATIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

sem_se_escape_fraction — GENERATIVE sem op