# Ivar Waller

> Ivar Waller was a Swedish professor of theoretical physics at Uppsala University. He developed the theory of X-ray scattering by lattice vibrations of a crystal, building upon the prior work of Peter Debye. The Debye-Waller factor, which he introduced in his doctoral thesis in 1925, is the definitive treatment of the effect of thermal vibrations in X-ray crystallography. He was a member of the Royal Swedish Academy of Sciences from 1945, and the Nobel Committee for Physics 1945-1972.

*Swedish theoretical physicist (1898-1991)*

**Canonical URL:** https://fame.am/person/ivar-waller

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** Sweden
- **Born:** 1898-06-11
- **Died:** 1991-04-12
- **Status:** deceased
- **Gender:** male

## Fame
- **Popularity score:** 38.6 / 100
- **Momentum:** 0.0 / 100  (trend: FALLING)
- **Historical depth:** 8.5 / 100
- **Attention shift:** 0.0 / 100
- **Source confidence:** 50.0 / 100
- **Profile completeness:** 70.0 / 100

## Sources
- [Івар Валлер](https://uk.wikipedia.org/wiki/%D0%86%D0%B2%D0%B0%D1%80_%D0%92%D0%B0%D0%BB%D0%BB%D0%B5%D1%80)
- [إيفار والر](https://ar.wikipedia.org/wiki/%D8%A5%D9%8A%D9%81%D8%A7%D8%B1_%D9%88%D8%A7%D9%84%D8%B1)
- [Ivar Waller](https://de.wikipedia.org/wiki/Ivar_Waller)
- [Ivar Waller](https://en.wikipedia.org/wiki/Ivar_Waller)
- [Ivar Waller](https://es.wikipedia.org/wiki/Ivar_Waller)
- [ایوار والر](https://fa.wikipedia.org/wiki/%D8%A7%DB%8C%D9%88%D8%A7%D8%B1_%D9%88%D8%A7%D9%84%D8%B1)
- [Ivar Waller](https://id.wikipedia.org/wiki/Ivar_Waller)
- [Ivar Waller](https://pt.wikipedia.org/wiki/Ivar_Waller)
- [Ivar Waller](https://sv.wikipedia.org/wiki/Ivar_Waller)
- [Wikidata](https://www.wikidata.org/wiki/Q909260)

---
Generated by Fame.am · https://fame.am/person/ivar-waller